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Make __typeof__-using code depend on HAVE_TYPEOF, not __GNUC__,

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since so many other C compilers also honor __typeof__.
This commit is contained in:
Jim Meyering
2005-03-17 19:00:52 +00:00
parent e778babb00
commit 4ef7ce47dc
1 changed files with 4 additions and 4 deletions
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8
src/system.h
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@@ -818,10 +818,10 @@ ptr_align (void *ptr, size_t alignment)
#define VERIFY_EXPR(assertion) \
(void)((struct {char a[(assertion) ? 1 : -1]; } *) 0)
#ifdef __GNUC__
# define VERIFY_GCC_EXPR(assertion) VERIFY_EXPR (assertion)
#if HAVE_TYPEOF
# define VERIFY_W_TYPEOF(assertion) VERIFY_EXPR (assertion)
#else
# define VERIFY_GCC_EXPR(assertion) (void) 0
# define VERIFY_W_TYPEOF(assertion) (void) 0
#endif
/* If 10*Accum+Digit_val is larger than Type_max, then don't update Accum
@@ -832,7 +832,7 @@ ptr_align (void *ptr, size_t alignment)
#define DECIMAL_DIGIT_ACCUMULATE(Accum, Digit_val, Type_max) \
( \
/* Ensure that Type_max is the maximum value of Accum. */ \
VERIFY_GCC_EXPR (TYPE_MAXIMUM (__typeof__ (Accum)) == (Type_max)), \
VERIFY_W_TYPEOF (TYPE_MAXIMUM (__typeof__ (Accum)) == (Type_max)), \
/* If the result would overflow, return 1. \
Otherwise update Accum and return 0. */ \
((Type_max) / 10 < Accum || Accum * 10 + (Digit_val) < Accum \