Report if a character is whitespace.
**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)
\param x character value to check. \returns non-zero if x falls within the character class, zero otherwise.
\threadsafety It is safe to call this function from any thread.
\since This function is available since SDL 3.2.0.
See Implementation
Report if a character is whitespace.
**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)
\param x character value to check. \returns non-zero if x falls within the character class, zero otherwise.
\threadsafety It is safe to call this function from any thread.
\since This function is available since SDL 3.2.0.