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Made the size of INT in occam be based on the size of void* in C

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I also stopped there being separate sizes for C and C++ since that wasn't supported properly in the compiler anyway.

Fixes #37
This commit is contained in:
Neil Brown 2009-04-17 14:22:53 +00:00
parent 9aa698aac3
commit 4add133d5b
2 changed files with 8 additions and 23 deletions
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6
config/TypeSizes.hs.in
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@ -8,10 +8,10 @@ cBoolSize, cxxBoolSize, cIntSize, cxxIntSize :: Int
cBoolSize = @C_BOOL_SIZE@
cxxBoolSize = @CXX_BOOL_SIZE@
cIntSize = @C_INT_SIZE@
cxxIntSize = @CXX_INT_SIZE@
cxxIntSize = cIntSize
type CIntReplacement = @C_INT_EQUIV@
type CXXIntReplacement = @CXX_INT_EQUIV@
type CXXIntReplacement = CIntReplacement
cIntReplacement, cXXIntReplacement :: A.Type
cIntReplacement = A.@C_INT_EQUIV@
cXXIntReplacement = A.@CXX_INT_EQUIV@
cXXIntReplacement = cIntReplacement

25
configure.ac
View File

@ -197,24 +197,19 @@ AM_CONDITIONAL([GHC68],[test $ghc_version_major -ge 6 -a $ghc_version_mid -ge 8]
# Check the sizes of certain constructs. We'll need to be cleverer if in future
# we want to allow cross-compilation.
#There is a subtle trick below. If you ask autoconf for the size of int
#in both C and C++, it caches the result from one to the other.
#To allow for the possibility of the C and C++ compilers having a
#different size int (seems unlikely, but perhaps possible with cross
#compilation) we use unsigned int in C++ and int in C.
AC_LANG(C++)
AC_CHECK_SIZEOF(bool)
AC_COMPUTE_INT(CXX_BOOL_SIZE,SIZEOF_BOOL)
AC_SUBST(CXX_BOOL_SIZE)
AC_CHECK_SIZEOF(unsigned int)
AC_COMPUTE_INT(CXX_INT_SIZE,SIZEOF_UNSIGNED_INT)
AC_SUBST(CXX_INT_SIZE)
AC_LANG(C)
AC_CHECK_SIZEOF(_Bool)
AC_COMPUTE_INT(C_BOOL_SIZE,SIZEOF__BOOL)
AC_SUBST(C_BOOL_SIZE)
AC_CHECK_SIZEOF(int)
AC_COMPUTE_INT(C_INT_SIZE,SIZEOF_INT)
#We use sizeof(void*) to work out the size for INT,
#because the C int type is 32-bit on both 32-bit and 64-bit platforms (with GCC, x86/x86-64).
AC_CHECK_SIZEOF(void*)
AC_COMPUTE_INT(C_INT_SIZE,SIZEOF_VOIDP)
AC_SUBST(C_INT_SIZE)
if test "x$C_INT_SIZE" = "x2"; then
@ -226,17 +221,7 @@ fi
if test "x$C_INT_SIZE" = "x8"; then
C_INT_EQUIV=Int64
fi
if test "x$CXX_INT_SIZE" = "x2"; then
CXX_INT_EQUIV=Int16
fi
if test "x$CXX_INT_SIZE" = "x4"; then
CXX_INT_EQUIV=Int32
fi
if test "x$CXX_INT_SIZE" = "x8"; then
CXX_INT_EQUIV=Int64
fi
AC_SUBST(C_INT_EQUIV)
AC_SUBST(CXX_INT_EQUIV)
CFLAGS="$CFLAGS $no_strict_overflow $no_tree_vrp"
# The reason for -fno-strict-overflow and -fno-tree-vrp above is that with the way I have implemented