devela::_dep::sdl3::sys::stdinc

Function SDL_asprintf

pub unsafe extern "C" fn SDL_asprintf(
    strp: *mut *mut i8,
    fmt: *const i8,
    ...
) -> i32
Available on crate feature dep_sdl3 only.
Expand description

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

Functions identically to SDL_snprintf(), except it allocates a buffer large enough to hold the output string on behalf of the caller.

On success, this function returns the number of bytes (not characters) comprising the output string, not counting the null-terminator character, and sets *strp to the newly-allocated string.

On error, this function returns a negative number, and the value of *strp is undefined.

The returned string is owned by the caller, and should be passed to SDL_free when no longer needed.

§Parameters

  • strp: on output, is set to the new string. Must not be NULL.
  • 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 bytes in the newly-allocated string, 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.