(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)

SDL_isspace

Report if a character is whitespace.

Header File

Defined in <SDL3/SDL_stdinc.h>

Syntax

int SDL_isspace(int x);

Function Parameters

Return Value

Returns non-zero if x falls within the character class, zero otherwise.

Remarks

WARNING: Regardless of system locale, this will only treat the following ASCII values as true:

• space (0x20)
• tab (0x09)
• newline (0x0A)
• vertical tab (0x0B)
• form feed (0x0C)
• return (0x0D)

Thread Safety

It is safe to call this function from any thread.

Version

This function is available since SDL 3.0.0.

CategoryAPI, CategoryAPIFunction, CategoryStdinc