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#include <ctype.h> int isblank(int c); |
Tells if c is a blank character. A blank character is used to separate words, e.g.: ` ' or `\t'.
Nonzero if c is a blank character, else zero.
ANSI/ISO C | C99; not C89 |
POSIX | 1003.2-1992; 1003.1-2001 |