Function SDL_wcslen

pub unsafe extern "C" fn SDL_wcslen(wstr: *const u32) -> usize
Available on crate feature dep_sdl3 only.
Expand description

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

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).

§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