2194 lines
22 KiB
HTML
2194 lines
22 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of StdLabels.Bytes</TITLE>
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</HEAD><BODY>
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<H1>StdLabels.Bytes</H1>
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Section: OCaml library (3o)<BR>Updated: 2020-01-30<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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StdLabels.Bytes - no description
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<A NAME="lbAC"> </A>
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<H2>Module</H2>
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Module StdLabels.Bytes
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<A NAME="lbAD"> </A>
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<H2>Documentation</H2>
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<P>
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Module
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<B>Bytes</B>
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<BR> :
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<B>(module BytesLabels)</B>
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<P>
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<P>
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<P>
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<P>
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<P>
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<P>
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<P>
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<P>
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<I>val length </I>
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:
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<B>bytes -> int</B>
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<P>
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Return the length (number of bytes) of the argument.
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<P>
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<P>
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<P>
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<I>val get </I>
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:
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<B>bytes -> int -> char</B>
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<P>
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<P>
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<B>get s n</B>
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returns the byte at index
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<B>n</B>
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in argument
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<B>s</B>
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.
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<P>
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Raise
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<B>Invalid_argument</B>
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if
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<B>n</B>
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is not a valid index in
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<B>s</B>
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.
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<P>
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<P>
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<P>
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<I>val set </I>
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:
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<B>bytes -> int -> char -> unit</B>
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<P>
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<P>
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<B>set s n c</B>
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modifies
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<B>s</B>
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in place, replacing the byte at index
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<B>n</B>
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with
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<B>c</B>
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.
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<P>
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Raise
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<B>Invalid_argument</B>
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if
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<B>n</B>
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is not a valid index in
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<B>s</B>
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.
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<P>
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<P>
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<P>
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<I>val create </I>
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:
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<B>int -> bytes</B>
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<P>
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<P>
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<B>create n</B>
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returns a new byte sequence of length
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<B>n</B>
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. The
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sequence is uninitialized and contains arbitrary bytes.
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<P>
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Raise
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<B>Invalid_argument</B>
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if
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<B>n < 0</B>
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or
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<B>n > </B>
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<B>Sys.max_string_length</B>
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.
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<P>
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<P>
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<P>
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<I>val make </I>
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:
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<B>int -> char -> bytes</B>
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<P>
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<P>
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<B>make n c</B>
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returns a new byte sequence of length
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<B>n</B>
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, filled with
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the byte
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<B>c</B>
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.
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<P>
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Raise
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<B>Invalid_argument</B>
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if
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<B>n < 0</B>
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or
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<B>n > </B>
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<B>Sys.max_string_length</B>
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.
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<P>
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<P>
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<P>
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<I>val init </I>
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:
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<B>int -> f:(int -> char) -> bytes</B>
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<P>
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<P>
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<B>init n f</B>
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returns a fresh byte sequence of length
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<B>n</B>
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,
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with character
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<B>i</B>
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initialized to the result of
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<B>f i</B>
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.
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<P>
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Raise
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<B>Invalid_argument</B>
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if
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<B>n < 0</B>
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or
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<B>n > </B>
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<B>Sys.max_string_length</B>
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.
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<P>
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<P>
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<P>
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<I>val empty </I>
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:
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<B>bytes</B>
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<P>
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A byte sequence of size 0.
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<P>
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<P>
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<P>
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<I>val copy </I>
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:
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<B>bytes -> bytes</B>
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<P>
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Return a new byte sequence that contains the same bytes as the
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argument.
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<P>
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<P>
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<P>
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<I>val of_string </I>
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:
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<B>string -> bytes</B>
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<P>
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Return a new byte sequence that contains the same bytes as the
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given string.
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<P>
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<P>
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<P>
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<I>val to_string </I>
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:
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<B>bytes -> string</B>
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<P>
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Return a new string that contains the same bytes as the given byte
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sequence.
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<P>
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<P>
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<P>
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<I>val sub </I>
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:
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<B>bytes -> pos:int -> len:int -> bytes</B>
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<P>
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<P>
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<B>sub s start len</B>
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returns a new byte sequence of length
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<B>len</B>
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,
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containing the subsequence of
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<B>s</B>
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that starts at position
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<B>start</B>
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and has length
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<B>len</B>
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.
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<P>
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Raise
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<B>Invalid_argument</B>
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if
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<B>start</B>
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and
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<B>len</B>
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do not designate a
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valid range of
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<B>s</B>
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.
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<P>
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<P>
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<P>
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<I>val sub_string </I>
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:
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<B>bytes -> pos:int -> len:int -> string</B>
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<P>
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Same as
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<B>sub</B>
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but return a string instead of a byte sequence.
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<P>
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<P>
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<P>
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<I>val extend </I>
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:
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<B>bytes -> left:int -> right:int -> bytes</B>
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<P>
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<P>
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<B>extend s left right</B>
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returns a new byte sequence that contains
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the bytes of
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<B>s</B>
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, with
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<B>left</B>
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uninitialized bytes prepended and
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<B>right</B>
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uninitialized bytes appended to it. If
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<B>left</B>
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or
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<B>right</B>
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is negative, then bytes are removed (instead of appended) from
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the corresponding side of
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<B>s</B>
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.
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<P>
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Raise
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<B>Invalid_argument</B>
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if the result length is negative or
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longer than
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<B>Sys.max_string_length</B>
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bytes.
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<P>
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<P>
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<B>Since</B>
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4.05.0
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<P>
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<P>
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<P>
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<I>val fill </I>
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:
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<B>bytes -> pos:int -> len:int -> char -> unit</B>
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<P>
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<P>
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<B>fill s start len c</B>
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modifies
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<B>s</B>
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in place, replacing
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<B>len</B>
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characters with
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<B>c</B>
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, starting at
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<B>start</B>
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.
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<P>
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Raise
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<B>Invalid_argument</B>
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if
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<B>start</B>
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and
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<B>len</B>
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do not designate a
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valid range of
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<B>s</B>
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.
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<P>
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<P>
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<P>
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<I>val blit </I>
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:
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<B>src:bytes -> src_pos:int -> dst:bytes -> dst_pos:int -> len:int -> unit</B>
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<P>
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<P>
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<B>blit src srcoff dst dstoff len</B>
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copies
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<B>len</B>
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bytes from sequence
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<B>src</B>
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, starting at index
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<B>srcoff</B>
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, to sequence
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<B>dst</B>
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, starting at
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index
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<B>dstoff</B>
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. It works correctly even if
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<B>src</B>
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and
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<B>dst</B>
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are the
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same byte sequence, and the source and destination intervals
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overlap.
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<P>
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Raise
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<B>Invalid_argument</B>
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if
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<B>srcoff</B>
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and
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<B>len</B>
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do not
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designate a valid range of
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<B>src</B>
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, or if
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<B>dstoff</B>
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and
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<B>len</B>
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do not designate a valid range of
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<B>dst</B>
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.
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<P>
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<P>
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<P>
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<I>val blit_string </I>
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:
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<B>src:string -> src_pos:int -> dst:bytes -> dst_pos:int -> len:int -> unit</B>
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<P>
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<P>
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<B>blit src srcoff dst dstoff len</B>
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copies
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<B>len</B>
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bytes from string
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<B>src</B>
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, starting at index
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<B>srcoff</B>
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, to byte sequence
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<B>dst</B>
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,
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starting at index
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<B>dstoff</B>
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.
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<P>
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Raise
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<B>Invalid_argument</B>
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if
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<B>srcoff</B>
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and
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<B>len</B>
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do not
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designate a valid range of
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<B>src</B>
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, or if
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<B>dstoff</B>
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and
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<B>len</B>
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do not designate a valid range of
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<B>dst</B>
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.
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<P>
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<P>
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<B>Since</B>
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4.05.0
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<P>
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<P>
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<P>
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<I>val concat </I>
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:
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<B>sep:bytes -> bytes list -> bytes</B>
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<P>
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<P>
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<B>concat sep sl</B>
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concatenates the list of byte sequences
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<B>sl</B>
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,
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inserting the separator byte sequence
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<B>sep</B>
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between each, and
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returns the result as a new byte sequence.
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<P>
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<P>
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<P>
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<I>val cat </I>
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:
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<B>bytes -> bytes -> bytes</B>
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<P>
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<P>
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<B>cat s1 s2</B>
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concatenates
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<B>s1</B>
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and
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<B>s2</B>
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and returns the result
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as new byte sequence.
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<P>
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Raise
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<B>Invalid_argument</B>
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if the result is longer than
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<B>Sys.max_string_length</B>
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bytes.
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<P>
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<P>
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<B>Since</B>
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4.05.0
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<P>
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<P>
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<P>
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<I>val iter </I>
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:
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<B>f:(char -> unit) -> bytes -> unit</B>
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<P>
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<P>
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<B>iter f s</B>
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applies function
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<B>f</B>
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in turn to all the bytes of
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<B>s</B>
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.
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It is equivalent to
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<B>f (get s 0); f (get s 1); ...; f (get s</B>
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<B>(length s - 1)); ()</B>
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.
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<P>
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<P>
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<P>
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<I>val iteri </I>
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:
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<B>f:(int -> char -> unit) -> bytes -> unit</B>
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<P>
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Same as
|
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<B>Bytes.iter</B>
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, but the function is applied to the index of
|
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the byte as first argument and the byte itself as second
|
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argument.
|
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<P>
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<P>
|
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<P>
|
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<I>val map </I>
|
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:
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<B>f:(char -> char) -> bytes -> bytes</B>
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|
|
<P>
|
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<P>
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<B>map f s</B>
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applies function
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<B>f</B>
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in turn to all the bytes of
|
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<B>s</B>
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and
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stores the resulting bytes in a new sequence that is returned as
|
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the result.
|
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<P>
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<P>
|
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<P>
|
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<I>val mapi </I>
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|
:
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<B>f:(int -> char -> char) -> bytes -> bytes</B>
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<P>
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<P>
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<B>mapi f s</B>
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calls
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<B>f</B>
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with each character of
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<B>s</B>
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and its
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index (in increasing index order) and stores the resulting bytes
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in a new sequence that is returned as the result.
|
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<P>
|
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<P>
|
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<P>
|
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<I>val trim </I>
|
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|
:
|
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<B>bytes -> bytes</B>
|
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|
|
<P>
|
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Return a copy of the argument, without leading and trailing
|
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whitespace. The bytes regarded as whitespace are the ASCII
|
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characters
|
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<B>' '</B>
|
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|
,
|
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<B>'\012'</B>
|
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|
,
|
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<B>'\n'</B>
|
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|
,
|
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<B>'\r'</B>
|
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|
, and
|
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<B>'\t'</B>
|
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|
|
.
|
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<P>
|
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<P>
|
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<P>
|
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<I>val escaped </I>
|
|
|
|
:
|
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<B>bytes -> bytes</B>
|
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|
|
<P>
|
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Return a copy of the argument, with special characters represented
|
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by escape sequences, following the lexical conventions of OCaml.
|
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<P>
|
|
<P>
|
|
<P>
|
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<I>val index </I>
|
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|
|
:
|
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<B>bytes -> char -> int</B>
|
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|
|
<P>
|
|
<P>
|
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<B>index s c</B>
|
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|
|
returns the index of the first occurrence of byte
|
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<B>c</B>
|
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|
|
in
|
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<B>s</B>
|
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|
|
.
|
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<P>
|
|
Raise
|
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<B>Not_found</B>
|
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|
|
if
|
|
<B>c</B>
|
|
|
|
does not occur in
|
|
<B>s</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val index_opt </I>
|
|
|
|
:
|
|
<B>bytes -> char -> int option</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>index_opt s c</B>
|
|
|
|
returns the index of the first occurrence of byte
|
|
<B>c</B>
|
|
|
|
in
|
|
<B>s</B>
|
|
|
|
or
|
|
<B>None</B>
|
|
|
|
if
|
|
<B>c</B>
|
|
|
|
does not occur in
|
|
<B>s</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.05
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val rindex </I>
|
|
|
|
:
|
|
<B>bytes -> char -> int</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>rindex s c</B>
|
|
|
|
returns the index of the last occurrence of byte
|
|
<B>c</B>
|
|
|
|
in
|
|
<B>s</B>
|
|
|
|
.
|
|
<P>
|
|
Raise
|
|
<B>Not_found</B>
|
|
|
|
if
|
|
<B>c</B>
|
|
|
|
does not occur in
|
|
<B>s</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val rindex_opt </I>
|
|
|
|
:
|
|
<B>bytes -> char -> int option</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>rindex_opt s c</B>
|
|
|
|
returns the index of the last occurrence of byte
|
|
<B>c</B>
|
|
|
|
in
|
|
<B>s</B>
|
|
|
|
or
|
|
<B>None</B>
|
|
|
|
if
|
|
<B>c</B>
|
|
|
|
does not occur in
|
|
<B>s</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.05
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val index_from </I>
|
|
|
|
:
|
|
<B>bytes -> int -> char -> int</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>index_from s i c</B>
|
|
|
|
returns the index of the first occurrence of
|
|
byte
|
|
<B>c</B>
|
|
|
|
in
|
|
<B>s</B>
|
|
|
|
after position
|
|
<B>i</B>
|
|
|
|
.
|
|
<B>Bytes.index s c</B>
|
|
|
|
is
|
|
equivalent to
|
|
<B>Bytes.index_from s 0 c</B>
|
|
|
|
.
|
|
<P>
|
|
Raise
|
|
<B>Invalid_argument</B>
|
|
|
|
if
|
|
<B>i</B>
|
|
|
|
is not a valid position in
|
|
<B>s</B>
|
|
|
|
.
|
|
Raise
|
|
<B>Not_found</B>
|
|
|
|
if
|
|
<B>c</B>
|
|
|
|
does not occur in
|
|
<B>s</B>
|
|
|
|
after position
|
|
<B>i</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val index_from_opt </I>
|
|
|
|
:
|
|
<B>bytes -> int -> char -> int option</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>index_from _opts i c</B>
|
|
|
|
returns the index of the first occurrence of
|
|
byte
|
|
<B>c</B>
|
|
|
|
in
|
|
<B>s</B>
|
|
|
|
after position
|
|
<B>i</B>
|
|
|
|
or
|
|
<B>None</B>
|
|
|
|
if
|
|
<B>c</B>
|
|
|
|
does not occur in
|
|
<B>s</B>
|
|
|
|
after position
|
|
<B>i</B>
|
|
|
|
.
|
|
<B>Bytes.index_opt s c</B>
|
|
|
|
is equivalent to
|
|
<B>Bytes.index_from_opt s 0 c</B>
|
|
|
|
.
|
|
<P>
|
|
Raise
|
|
<B>Invalid_argument</B>
|
|
|
|
if
|
|
<B>i</B>
|
|
|
|
is not a valid position in
|
|
<B>s</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.05
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val rindex_from </I>
|
|
|
|
:
|
|
<B>bytes -> int -> char -> int</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>rindex_from s i c</B>
|
|
|
|
returns the index of the last occurrence of
|
|
byte
|
|
<B>c</B>
|
|
|
|
in
|
|
<B>s</B>
|
|
|
|
before position
|
|
<B>i+1</B>
|
|
|
|
.
|
|
<B>rindex s c</B>
|
|
|
|
is equivalent
|
|
to
|
|
<B>rindex_from s (Bytes.length s - 1) c</B>
|
|
|
|
.
|
|
<P>
|
|
Raise
|
|
<B>Invalid_argument</B>
|
|
|
|
if
|
|
<B>i+1</B>
|
|
|
|
is not a valid position in
|
|
<B>s</B>
|
|
|
|
.
|
|
Raise
|
|
<B>Not_found</B>
|
|
|
|
if
|
|
<B>c</B>
|
|
|
|
does not occur in
|
|
<B>s</B>
|
|
|
|
before position
|
|
<B>i+1</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val rindex_from_opt </I>
|
|
|
|
:
|
|
<B>bytes -> int -> char -> int option</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>rindex_from_opt s i c</B>
|
|
|
|
returns the index of the last occurrence
|
|
of byte
|
|
<B>c</B>
|
|
|
|
in
|
|
<B>s</B>
|
|
|
|
before position
|
|
<B>i+1</B>
|
|
|
|
or
|
|
<B>None</B>
|
|
|
|
if
|
|
<B>c</B>
|
|
|
|
does not
|
|
occur in
|
|
<B>s</B>
|
|
|
|
before position
|
|
<B>i+1</B>
|
|
|
|
.
|
|
<B>rindex_opt s c</B>
|
|
|
|
is equivalent to
|
|
<B>rindex_from s (Bytes.length s - 1) c</B>
|
|
|
|
.
|
|
<P>
|
|
Raise
|
|
<B>Invalid_argument</B>
|
|
|
|
if
|
|
<B>i+1</B>
|
|
|
|
is not a valid position in
|
|
<B>s</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.05
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val contains </I>
|
|
|
|
:
|
|
<B>bytes -> char -> bool</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>contains s c</B>
|
|
|
|
tests if byte
|
|
<B>c</B>
|
|
|
|
appears in
|
|
<B>s</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val contains_from </I>
|
|
|
|
:
|
|
<B>bytes -> int -> char -> bool</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>contains_from s start c</B>
|
|
|
|
tests if byte
|
|
<B>c</B>
|
|
|
|
appears in
|
|
<B>s</B>
|
|
|
|
after
|
|
position
|
|
<B>start</B>
|
|
|
|
.
|
|
<B>contains s c</B>
|
|
|
|
is equivalent to
|
|
<B>contains_from</B>
|
|
|
|
<B>s 0 c</B>
|
|
|
|
.
|
|
<P>
|
|
Raise
|
|
<B>Invalid_argument</B>
|
|
|
|
if
|
|
<B>start</B>
|
|
|
|
is not a valid position in
|
|
<B>s</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val rcontains_from </I>
|
|
|
|
:
|
|
<B>bytes -> int -> char -> bool</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>rcontains_from s stop c</B>
|
|
|
|
tests if byte
|
|
<B>c</B>
|
|
|
|
appears in
|
|
<B>s</B>
|
|
|
|
before
|
|
position
|
|
<B>stop+1</B>
|
|
|
|
.
|
|
<P>
|
|
Raise
|
|
<B>Invalid_argument</B>
|
|
|
|
if
|
|
<B>stop < 0</B>
|
|
|
|
or
|
|
<B>stop+1</B>
|
|
|
|
is not a valid
|
|
position in
|
|
<B>s</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val uppercase </I>
|
|
|
|
:
|
|
<B>bytes -> bytes</B>
|
|
|
|
<P>
|
|
<B>Deprecated.</B>
|
|
|
|
Functions operating on Latin-1 character set are deprecated.
|
|
<P>
|
|
<P>
|
|
Return a copy of the argument, with all lowercase letters
|
|
translated to uppercase, including accented letters of the ISO
|
|
Latin-1 (8859-1) character set.
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val lowercase </I>
|
|
|
|
:
|
|
<B>bytes -> bytes</B>
|
|
|
|
<P>
|
|
<B>Deprecated.</B>
|
|
|
|
Functions operating on Latin-1 character set are deprecated.
|
|
<P>
|
|
<P>
|
|
Return a copy of the argument, with all uppercase letters
|
|
translated to lowercase, including accented letters of the ISO
|
|
Latin-1 (8859-1) character set.
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val capitalize </I>
|
|
|
|
:
|
|
<B>bytes -> bytes</B>
|
|
|
|
<P>
|
|
<B>Deprecated.</B>
|
|
|
|
Functions operating on Latin-1 character set are deprecated.
|
|
<P>
|
|
<P>
|
|
Return a copy of the argument, with the first character set to uppercase,
|
|
using the ISO Latin-1 (8859-1) character set..
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val uncapitalize </I>
|
|
|
|
:
|
|
<B>bytes -> bytes</B>
|
|
|
|
<P>
|
|
<B>Deprecated.</B>
|
|
|
|
Functions operating on Latin-1 character set are deprecated.
|
|
<P>
|
|
<P>
|
|
Return a copy of the argument, with the first character set to lowercase,
|
|
using the ISO Latin-1 (8859-1) character set..
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val uppercase_ascii </I>
|
|
|
|
:
|
|
<B>bytes -> bytes</B>
|
|
|
|
<P>
|
|
Return a copy of the argument, with all lowercase letters
|
|
translated to uppercase, using the US-ASCII character set.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.05.0
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val lowercase_ascii </I>
|
|
|
|
:
|
|
<B>bytes -> bytes</B>
|
|
|
|
<P>
|
|
Return a copy of the argument, with all uppercase letters
|
|
translated to lowercase, using the US-ASCII character set.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.05.0
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val capitalize_ascii </I>
|
|
|
|
:
|
|
<B>bytes -> bytes</B>
|
|
|
|
<P>
|
|
Return a copy of the argument, with the first character set to uppercase,
|
|
using the US-ASCII character set.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.05.0
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val uncapitalize_ascii </I>
|
|
|
|
:
|
|
<B>bytes -> bytes</B>
|
|
|
|
<P>
|
|
Return a copy of the argument, with the first character set to lowercase,
|
|
using the US-ASCII character set.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.05.0
|
|
<P>
|
|
<P>
|
|
<I>type t </I>
|
|
|
|
=
|
|
<B>bytes</B>
|
|
|
|
<P>
|
|
<P>
|
|
An alias for the type of byte sequences.
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val compare </I>
|
|
|
|
:
|
|
<B>t -> t -> int</B>
|
|
|
|
<P>
|
|
The comparison function for byte sequences, with the same
|
|
specification as
|
|
<B>compare</B>
|
|
|
|
. Along with the type
|
|
<B>t</B>
|
|
|
|
,
|
|
this function
|
|
<B>compare</B>
|
|
|
|
allows the module
|
|
<B>Bytes</B>
|
|
|
|
to be passed as
|
|
argument to the functors
|
|
<B>Set.Make</B>
|
|
|
|
and
|
|
<B>Map.Make</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val equal </I>
|
|
|
|
:
|
|
<B>t -> t -> bool</B>
|
|
|
|
<P>
|
|
The equality function for byte sequences.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.05.0
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<P>
|
|
|
|
<A NAME="lbAE"> </A>
|
|
<H3>Iterators</H3>
|
|
|
|
<P>
|
|
<P>
|
|
|
|
<P>
|
|
<I>val to_seq </I>
|
|
|
|
:
|
|
<B>t -> char Seq.t</B>
|
|
|
|
<P>
|
|
Iterate on the string, in increasing index order. Modifications of the
|
|
string during iteration will be reflected in the iterator.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.07
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val to_seqi </I>
|
|
|
|
:
|
|
<B>t -> (int * char) Seq.t</B>
|
|
|
|
<P>
|
|
Iterate on the string, in increasing order, yielding indices along chars
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.07
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val of_seq </I>
|
|
|
|
:
|
|
<B>char Seq.t -> t</B>
|
|
|
|
<P>
|
|
Create a string from the generator
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.07
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<P>
|
|
|
|
<A NAME="lbAF"> </A>
|
|
<H3>Binary encoding/decoding of integers</H3>
|
|
|
|
<P>
|
|
<P>
|
|
|
|
<P>
|
|
<P>
|
|
|
|
The functions in this section binary encode and decode integers to
|
|
and from byte sequences.
|
|
<P>
|
|
All following functions raise
|
|
<B>Invalid_argument</B>
|
|
|
|
if the space
|
|
needed at index
|
|
<B>i</B>
|
|
|
|
to decode or encode the integer is not
|
|
available.
|
|
<P>
|
|
Little-endian (resp. big-endian) encoding means that least
|
|
(resp. most) significant bytes are stored first. Big-endian is
|
|
also known as network byte order. Native-endian encoding is
|
|
either little-endian or big-endian depending on
|
|
<B>Sys.big_endian</B>
|
|
|
|
.
|
|
<P>
|
|
32-bit and 64-bit integers are represented by the
|
|
<B>int32</B>
|
|
|
|
and
|
|
<B>int64</B>
|
|
|
|
types, which can be interpreted either as signed or
|
|
unsigned numbers.
|
|
<P>
|
|
8-bit and 16-bit integers are represented by the
|
|
<B>int</B>
|
|
|
|
type,
|
|
which has more bits than the binary encoding. These extra bits
|
|
are handled as follows:
|
|
<P>
|
|
-Functions that decode signed (resp. unsigned) 8-bit or 16-bit
|
|
integers represented by
|
|
<B>int</B>
|
|
|
|
values sign-extend
|
|
(resp. zero-extend) their result.
|
|
<P>
|
|
-Functions that encode 8-bit or 16-bit integers represented by
|
|
<B>int</B>
|
|
|
|
values truncate their input to their least significant
|
|
bytes.
|
|
<P>
|
|
<P>
|
|
|
|
<P>
|
|
<I>val get_uint8 </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>get_uint8 b i</B>
|
|
|
|
is
|
|
<B>b</B>
|
|
|
|
's unsigned 8-bit integer starting at byte index
|
|
<B>i</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val get_int8 </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>get_int8 b i</B>
|
|
|
|
is
|
|
<B>b</B>
|
|
|
|
's signed 8-bit integer starting at byte index
|
|
<B>i</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val get_uint16_ne </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>get_uint16_ne b i</B>
|
|
|
|
is
|
|
<B>b</B>
|
|
|
|
's native-endian unsigned 16-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val get_uint16_be </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>get_uint16_be b i</B>
|
|
|
|
is
|
|
<B>b</B>
|
|
|
|
's big-endian unsigned 16-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val get_uint16_le </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>get_uint16_le b i</B>
|
|
|
|
is
|
|
<B>b</B>
|
|
|
|
's little-endian unsigned 16-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val get_int16_ne </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>get_int16_ne b i</B>
|
|
|
|
is
|
|
<B>b</B>
|
|
|
|
's native-endian signed 16-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val get_int16_be </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>get_int16_be b i</B>
|
|
|
|
is
|
|
<B>b</B>
|
|
|
|
's big-endian signed 16-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val get_int16_le </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>get_int16_le b i</B>
|
|
|
|
is
|
|
<B>b</B>
|
|
|
|
's little-endian signed 16-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val get_int32_ne </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int32</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>get_int32_ne b i</B>
|
|
|
|
is
|
|
<B>b</B>
|
|
|
|
's native-endian 32-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val get_int32_be </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int32</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>get_int32_be b i</B>
|
|
|
|
is
|
|
<B>b</B>
|
|
|
|
's big-endian 32-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val get_int32_le </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int32</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>get_int32_le b i</B>
|
|
|
|
is
|
|
<B>b</B>
|
|
|
|
's little-endian 32-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val get_int64_ne </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int64</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>get_int64_ne b i</B>
|
|
|
|
is
|
|
<B>b</B>
|
|
|
|
's native-endian 64-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val get_int64_be </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int64</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>get_int64_be b i</B>
|
|
|
|
is
|
|
<B>b</B>
|
|
|
|
's big-endian 64-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val get_int64_le </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int64</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>get_int64_le b i</B>
|
|
|
|
is
|
|
<B>b</B>
|
|
|
|
's little-endian 64-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val set_uint8 </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int -> unit</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>set_uint8 b i v</B>
|
|
|
|
sets
|
|
<B>b</B>
|
|
|
|
's unsigned 8-bit integer starting at byte index
|
|
<B>i</B>
|
|
|
|
to
|
|
<B>v</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val set_int8 </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int -> unit</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>set_int8 b i v</B>
|
|
|
|
sets
|
|
<B>b</B>
|
|
|
|
's signed 8-bit integer starting at byte index
|
|
<B>i</B>
|
|
|
|
to
|
|
<B>v</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val set_uint16_ne </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int -> unit</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>set_uint16_ne b i v</B>
|
|
|
|
sets
|
|
<B>b</B>
|
|
|
|
's native-endian unsigned 16-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
to
|
|
<B>v</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val set_uint16_be </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int -> unit</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>set_uint16_be b i v</B>
|
|
|
|
sets
|
|
<B>b</B>
|
|
|
|
's big-endian unsigned 16-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
to
|
|
<B>v</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val set_uint16_le </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int -> unit</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>set_uint16_le b i v</B>
|
|
|
|
sets
|
|
<B>b</B>
|
|
|
|
's little-endian unsigned 16-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
to
|
|
<B>v</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val set_int16_ne </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int -> unit</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>set_int16_ne b i v</B>
|
|
|
|
sets
|
|
<B>b</B>
|
|
|
|
's native-endian signed 16-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
to
|
|
<B>v</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val set_int16_be </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int -> unit</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>set_int16_be b i v</B>
|
|
|
|
sets
|
|
<B>b</B>
|
|
|
|
's big-endian signed 16-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
to
|
|
<B>v</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val set_int16_le </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int -> unit</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>set_int16_le b i v</B>
|
|
|
|
sets
|
|
<B>b</B>
|
|
|
|
's little-endian signed 16-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
to
|
|
<B>v</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val set_int32_ne </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int32 -> unit</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>set_int32_ne b i v</B>
|
|
|
|
sets
|
|
<B>b</B>
|
|
|
|
's native-endian 32-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
to
|
|
<B>v</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val set_int32_be </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int32 -> unit</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>set_int32_be b i v</B>
|
|
|
|
sets
|
|
<B>b</B>
|
|
|
|
's big-endian 32-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
to
|
|
<B>v</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val set_int32_le </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int32 -> unit</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>set_int32_le b i v</B>
|
|
|
|
sets
|
|
<B>b</B>
|
|
|
|
's little-endian 32-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
to
|
|
<B>v</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val set_int64_ne </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int64 -> unit</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>set_int64_ne b i v</B>
|
|
|
|
sets
|
|
<B>b</B>
|
|
|
|
's native-endian 64-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
to
|
|
<B>v</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val set_int64_be </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int64 -> unit</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>set_int64_be b i v</B>
|
|
|
|
sets
|
|
<B>b</B>
|
|
|
|
's big-endian 64-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
to
|
|
<B>v</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
<I>val set_int64_le </I>
|
|
|
|
:
|
|
<B>bytes -> int -> int64 -> unit</B>
|
|
|
|
<P>
|
|
<P>
|
|
<B>set_int64_le b i v</B>
|
|
|
|
sets
|
|
<B>b</B>
|
|
|
|
's little-endian 64-bit integer
|
|
starting at byte index
|
|
<B>i</B>
|
|
|
|
to
|
|
<B>v</B>
|
|
|
|
.
|
|
<P>
|
|
<P>
|
|
<B>Since</B>
|
|
|
|
4.08
|
|
<P>
|
|
<P>
|
|
<P>
|
|
|
|
<HR>
|
|
<A NAME="index"> </A><H2>Index</H2>
|
|
<DL>
|
|
<DT id="1"><A HREF="#lbAB">NAME</A><DD>
|
|
<DT id="2"><A HREF="#lbAC">Module</A><DD>
|
|
<DT id="3"><A HREF="#lbAD">Documentation</A><DD>
|
|
<DL>
|
|
<DT id="4"><A HREF="#lbAE">Iterators</A><DD>
|
|
<DT id="5"><A HREF="#lbAF">Binary encoding/decoding of integers</A><DD>
|
|
</DL>
|
|
</DL>
|
|
<HR>
|
|
This document was created by
|
|
<A HREF="/cgi-bin/man/man2html">man2html</A>,
|
|
using the manual pages.<BR>
|
|
Time: 00:05:57 GMT, March 31, 2021
|
|
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