gcc/testsuite/gcc.dg/format/ext-9.c

   1 /* Test for printf format extensions using formats from or recommended by
   2    C2X.  */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=gnu2x -Wformat" } */
   5
   6 #include "format.h"
   7
   8 void
   9 foo (u_quad_t uq, unsigned int u, unsigned short us, unsigned char uc,
  10      unsigned long ul, unsigned long long ull, uintmax_t uj, size_t z,
  11      unsigned_ptrdiff_t ut)
  12 {
  13   /* Deprecated length modifiers with %b and %B.  */
  14   printf ("%qb%qB", uq, uq);
  15   printf ("%Lb%LB", ull, ull);
  16   printf ("%Zb%ZB", z, z);
  17   /* Use of %B in cases valid for %b.  */
  18   printf ("%B %hB %hhB %lB %llB %jB %zB %tB\n", u, us, uc, ul, ull, uj, z, ut);
  19   printf ("%*.*llB\n", 1, 2, ull);
  20   printf ("%-B\n", u);
  21   printf ("%#B\n", u);
  22   printf ("%08B\n", u);
  23   /* Flags valid on signed conversions only.  */
  24   printf ("%+B\n", u); /* { dg-warning "flag" } */
  25   printf ("% B\n", u); /* { dg-warning "flag" } */
  26   /* Flags ignored in certain combinations.  */
  27   printf ("%-08B\n", u); /* { dg-warning "ignored" } */
  28   printf ("%08.5B\n", u); /* { dg-warning "ignored" } */
  29 }