NAME¶

SDL_wcslen - This works exactly like wcslen() but doesn't require access to a C runtime.

SYNOPSIS¶

#include <SDL3/SDL_stdinc.h>

size_t SDL_wcslen(const wchar_t *wstr);

DESCRIPTION¶

Counts the number of wchar_t values in wstr, excluding the null terminator.

Like SDL_strlen only counts bytes and not codepoints in a UTF-8 string, this counts wchar_t values in a string, even if the string's encoding is of variable width, like UTF-16.

Also be aware that wchar_t is different sizes on different platforms (4 bytes on Linux, 2 on Windows, etc).

FUNCTION PARAMETERS¶

wstr

The null-terminated wide string to read. Must not be NULL.

RETURN VALUE¶

Returns the length (in wchar_t values, excluding the null terminator) of wstr.

THREAD SAFETY¶

It is safe to call this function from any thread.

AVAILABILITY¶

This function is available since SDL 3.2.0.

SEE ALSO¶

SDL_wcsnlen(3), SDL_utf8strlen(3), SDL_utf8strnlen(3)