isspace - test for white-space character

Syntax

#include <ctype.h> int isspace(int c);

Description isspace() tests whether c is a white-space character, i.e. a blank, horizontal tab, carriage

	return, newline, form-feed, or vertical tab. In all cases, the argument c is an int, the value of which must be representable as an unsigned char or must equal the value of the macro EOF. If the argument c has any other value, the behavior is undefined.
Return val.	!= 0 0	White-space character Not a white-space character
Notes	isspace() is implemented both as a function and as a macro. To generate a function call, the definition of the macro name must be first undefined (#undef isspace). The behavior of isspace() is determined by the class space of the current locale. The current locale is the C locale, unless it was explicitly changed using setlocale().
See also	isalnum(), isalpha(), iscntrl(), isdigit(), isgraph(), islower(), isprint(), ispunct(), isupper(), isxdigit(), setlocale(), ctype.h.