isspace function — Tests for a white space character
int isspace(int c)
The isspace
function
returns true (nonzero) if c
is a
whitespace character. In the "C
"
locale, the space ('
'), form
feed ('\f
'), newline ('\n
'), carriage return ('\r
'), horizontal tab ('\t
'), and vertical tab ('\v
') characters are whitespace, but
backspace ('\b
') is not.
Different locales can define other whitespace characters.