gcc/testsuite/gcc.dg/utf-cvt.c

   1 /* Contributed by Kris Van Hees <kris.van.hees@oracle.com> */
   2 /* Test the char16_t and char32_t promotion rules. */
   3 /* { dg-do compile } */
   4 /* { dg-require-effective-target int32plus } */
   5 /* { dg-options "-std=gnu99 -Wall -Wconversion -Wsign-conversion" } */
   6
   7 typedef __CHAR16_TYPE__ char16_t;
   8 typedef __CHAR32_TYPE__ char32_t;
   9
  10 extern void f_c (char);
  11 extern void fsc (signed char);
  12 extern void fuc (unsigned char);
  13 extern void f_s (short);
  14 extern void fss (signed short);
  15 extern void fus (unsigned short);
  16 extern void f_i (int);
  17 extern void fsi (signed int);
  18 extern void fui (unsigned int);
  19 extern void f_l (long);
  20 extern void fsl (signed long);
  21 extern void ful (unsigned long);
  22 extern void f_ll (long long);
  23 extern void fsll (signed long long);
  24 extern void full (unsigned long long);
  25
  26 void m (char16_t c0, char32_t c1)
  27 {
  28     f_c (c0);   /* { dg-warning "conversion from .char16_t\[^\n\r\]*. to .char. may change value" } */
  29     fsc (c0);   /* { dg-warning "may change value" } */
  30     fuc (c0);   /* { dg-warning "may change value" } */
  31     f_s (c0);   /* { dg-warning "change the sign" } */
  32     fss (c0);   /* { dg-warning "change the sign" } */
  33     fus (c0);
  34     f_i (c0);
  35     fsi (c0);
  36     fui (c0);
  37     f_l (c0);
  38     fsl (c0);
  39     ful (c0);
  40     f_ll (c0);
  41     fsll (c0);
  42     full (c0);
  43
  44     f_c (c1);   /* { dg-warning "may change value" } */
  45     fsc (c1);   /* { dg-warning "may change value" } */
  46     fuc (c1);   /* { dg-warning "may change value" } */
  47     f_s (c1);   /* { dg-warning "may change value" } */
  48     fss (c1);   /* { dg-warning "may change value" } */
  49     fus (c1);   /* { dg-warning "may change value" } */
  50     f_i (c1);   /* { dg-warning "change the sign" "" { target { ! int16 } } } */
  51     fsi (c1);   /* { dg-warning "change the sign" "" { target { ! int16 } } } */
  52     fui (c1);
  53     f_l (c1);   /* { dg-warning "change the sign" "" { target { llp64 || ilp32 } } } */
  54     fsl (c1);   /* { dg-warning "change the sign" "" { target { llp64 || ilp32 } } } */
  55     ful (c1);
  56     f_ll (c1);
  57     fsll (c1);
  58     full (c1);
  59 }