(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous 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

int

x

character value to check.

Return Value

(int) 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 3.1.3.

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CategoryAPI, CategoryAPIFunction, CategoryStdinc

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