/* Test for printf formats and bit-fields: bug 22421. */ /* Origin: Joseph Myers */ /* { dg-do compile } */ /* { dg-options "-std=gnu99 -Wformat" } */ /* { dg-require-effective-target int32plus } */ #include "format.h" struct s { unsigned int u1 : 1; signed int s1 : 1; unsigned int u15 : 15; signed int s15 : 15; unsigned int u16 : 16; signed int s16 : 16; unsigned long u31 : 31; signed long s31 : 31; unsigned long u32 : 32; signed long s32 : 32; unsigned long long u48 : 48; } x; void foo (void) { printf ("%d%u", x.u1, x.u1); printf ("%d%u", x.s1, x.s1); printf ("%d%u", x.u15, x.u15); printf ("%d%u", x.s15, x.s15); printf ("%d%u", x.u16, x.u16); printf ("%d%u", x.s16, x.s16); #if __INT_MAX__ > 32767 /* If integers are 16 bits, there doesn't seem to be a way of printing these without getting an error. */ printf ("%d%u", x.u31, x.u31); printf ("%d%u", x.s31, x.s31); #endif #if __LONG_MAX__ > 2147483647 && __INT_MAX__ >= 2147483647 /* If long is wider than 32 bits, the 32-bit bit-fields are int or unsigned int or promote to those types. Otherwise, long is 32 bits and the bit-fields are of type plain long or unsigned long. */ printf ("%d%u", x.u32, x.u32); printf ("%d%u", x.s32, x.s32); #else printf ("%ld%lu", x.u32, x.u32); printf ("%ld%lu", x.s32, x.s32); #endif printf ("%llu", x.u48); /* { dg-warning "has type '.*unsigned int:48'" } */ printf ("%llu", (unsigned long long)x.u48); }