gcc/testsuite/gcc.dg/utf16-4.c

   1 /* Contributed by Kris Van Hees <kris.van.hees@oracle.com> */
   2 /* Expected errors for char16_t character constants. */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=gnu99" } */
   5
   6 typedef __CHAR16_TYPE__ char16_t;
   7
   8 char16_t        c0 = u'';               /* { dg-error "empty character" } */
   9 char16_t        c1 = u'ab';             /* { dg-warning "constant too long" } */
  10 char16_t        c2 = u'\U00064321';     /* { dg-warning "constant too long" } */
  11
  12 char16_t        c3 = 'a';
  13 char16_t        c4 = U'a';
  14 char16_t        c5 = U'\u2029';
  15 char16_t        c6 = U'\U00064321';     /* { dg-warning "conversion from .(long )?unsigned int. to 'char16_t' {aka '(short )?unsigned int'} changes value from .410401. to .17185." } */
  16 char16_t        c7 = L'a';
  17 char16_t        c8 = L'\u2029';
  18 char16_t        c9 = L'\U00064321';     /* { dg-warning "conversion" "" { target { 4byte_wchar_t } } } */
  19                                         /* { dg-warning "constant too long" "" { target { ! 4byte_wchar_t } } .-1 } */
  20
  21 int main () {}