Synopsis
#include <ctype.h> int isspace(int c);
Description
isspace returns nonzero (true) if and only if the value of the argument
c is a standard white-space character. The standard white-space characters
are space (' '
), form feed ('\f'
), new-line ('\n'
),
carriage return ('\r'
), horizontal tab ('\t'
), and
vertical tab ('\v'
).
Portability
isspace conforms to ISO/IEC 9899:1990 (C90) and ISO/IEC 9899:1999 (C99).