gcc/testsuite/gcc.dg/c23-utf8str.c

   1 /* Test initialization by UTF-8 string literal in C23.  */
   2 /* { dg-do compile } */
   3 /* { dg-require-effective-target wchar } */
   4 /* { dg-options "-std=c23" } */
   5
   6 typedef __CHAR8_TYPE__  char8_t;
   7 typedef __CHAR16_TYPE__ char16_t;
   8 typedef __CHAR32_TYPE__ char32_t;
   9 typedef __WCHAR_TYPE__  wchar_t;
  10
  11 /* Test that char, signed char, unsigned char, and char8_t arrays can be
  12    initialized by a UTF-8 string literal.  */
  13 const char cbuf1[] = u8"text";
  14 const char cbuf2[] = { u8"text" };
  15 const signed char scbuf1[] = u8"text";
  16 const signed char scbuf2[] = { u8"text" };
  17 const unsigned char ucbuf1[] = u8"text";
  18 const unsigned char ucbuf2[] = { u8"text" };
  19 const char8_t c8buf1[] = u8"text";
  20 const char8_t c8buf2[] = { u8"text" };
  21
  22 /* Test that a diagnostic is issued for attempted initialization of
  23    other character types by a UTF-8 string literal.  */
  24 const char16_t c16buf1[] = u8"text";            /* { dg-error "from a string literal with type array of .unsigned char." } */
  25 const char16_t c16buf2[] = { u8"text" };        /* { dg-error "from a string literal with type array of .unsigned char." } */
  26 const char32_t c32buf1[] = u8"text";            /* { dg-error "from a string literal with type array of .unsigned char." } */
  27 const char32_t c32buf2[] = { u8"text" };        /* { dg-error "from a string literal with type array of .unsigned char." } */
  28 const wchar_t wbuf1[] = u8"text";               /* { dg-error "from a string literal with type array of .unsigned char." } */
  29 const wchar_t wbuf2[] = { u8"text" };           /* { dg-error "from a string literal with type array of .unsigned char." } */
  30
  31 /* Test that char8_t arrays can be initialized by an ordinary string
  32    literal.  */
  33 const char8_t c8buf3[] = "text";
  34 const char8_t c8buf4[] = { "text" };