gcc/gcc/testsuite/gcc.dg/Walloc-size-larger-than-14.c

31 lines
659 B
C

/* PR middle-end/82063 - issues with arguments enabled by -Wall
{ dg-do compile }
{ dg-options "-O -Walloc-size-larger-than=123456789123456789123456789123456789 -ftrack-macro-expansion=0" } */
typedef __SIZE_TYPE__ size_t;
void sink (void*);
#define T(x) sink (x)
/* Verify that an exceedingly large -Walloc-size-larger-than argument
with no suffix is accepted and treated as infinite. */
void f (void)
{
size_t n = 0;
T (__builtin_malloc (n));
n = __PTRDIFF_MAX__;
T (__builtin_malloc (n));
n += 1;
T (__builtin_malloc (n));
n = __SIZE_MAX__ - 1;
T (__builtin_malloc (n));
n = __SIZE_MAX__;
T (__builtin_malloc (n));
}