On 04/17/2011 01:19 AM, Gerald Pfeifer wrote:
GCC provides an option -Wpointer-arith and describes it as follows:
Warn about anything that depends on the "size of" a function type or of `void'. GNU C assigns these types a size of 1, for convenience in calculations with `void *' pointers and pointers to functions.This does not trigger on my Wine builds, but then we should not invoke
Of course it doesn't triggers in Wine as -Wpointer-arith is already enabled. I made heavy use of that when I did my pointer cast killing spree a few years ago.
sizeof(void) or sizeof(some_function). ;-) It should help catch any such bad future uses of sizeof.
Gerald
configure.ac | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/configure.ac b/configure.ac index 6047744..0ae6625 100644 --- a/configure.ac +++ b/configure.ac @@ -1715,6 +1715,7 @@ then WINE_TRY_CFLAGS([-fno-builtin],[AC_SUBST(BUILTINFLAG,"-fno-builtin")]) WINE_TRY_CFLAGS([-fno-strict-aliasing]) WINE_TRY_CFLAGS([-Wdeclaration-after-statement])
- WINE_TRY_CFLAGS([-Wpointer-arith]) WINE_TRY_CFLAGS([-Wstrict-prototypes]) WINE_TRY_CFLAGS([-Wtype-limits]) WINE_TRY_CFLAGS([-Wunused-but-set-parameter])
bye michael