Provided by: libsdl3-doc_3.2.20+ds-2_all bug

NAME

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

SYNOPSIS

       #include <SDL3/SDL_stdinc.h>

       int SDL_swprintf(wchar_t *text, size_t maxlen, const wchar_t *fmt, ...);

DESCRIPTION

       Format  a  wide  string  of  up to maxlen-1 wchar_t values, converting each '%' item with values provided
       through variable arguments.

       While some C runtimes differ on how to deal with too-large strings,  this  function  null-terminates  the
       output,  by  treating  the  null-terminator  as  part  of  the maxlen count. Note that if maxlen is zero,
       however, no wide characters will be written at all.

       This function returns the number  of  _wide  characters_  (not  _codepoints_)  that  should  be  written,
       excluding  the  null-terminator character. If this returns a number >= maxlen, it means the output string
       was truncated. A negative return value means an error occurred.

       Referencing the output string's pointer with a format item is undefined behavior.

FUNCTION PARAMETERS

       text   the buffer to write the wide string into. Must not be NULL.

       maxlen the maximum wchar_t values to write, including the null-terminator.

       fmt    a printf-style format string. Must not be NULL.

       ...    a list of values to be used with the format string.

RETURN VALUE

       Returns the number of wide characters that should be written, not counting the null-terminator char, or a
       negative value on error.

THREAD SAFETY

       It is safe to call this function from any thread.

AVAILABILITY

       This function is available since SDL 3.2.0.

Simple Directmedia Layer                           SDL 3.2.20                                    SDL_swprintf(3)