Wide-character-string traversal

A wide-character string consists of fixed-length characters. The library does not need to provide traversal functions for wide-character strings because you can traverse the string with the built-in scaling of the C compiler. However, the library does provide the ifx_gl_wcslen() function, which determines the number of bytes in a wide-character string.

The library supports wide-character string traversal in the following directions:
  • Forward
    gl_wchar_t buf[], *p;
for ( p = buf; *p != ‘\0' ; p++ )
   process_wchar(*p);
  • Backward
    gl_wchar_t buf[], *p;
for ( p = buf + ifx_gl_wcslen(buf) - 1; p >= buf; p-- )
   process_wchar(*p);