isspace : isspace « ctype.h « C Tutorial






  1. C Tutorial
  2. ctype.h
  3. isspace
ItemValue
Header filectype.h
Declarationint isspace(int ch);
Returnreturns nonzero if ch is a white-space character, including space, horizontal tab, vertical tab, formfeed, carriage return, or newline character; otherwise zero is returned.


#include <ctype.h>
  #include <stdio.h>

  int main(void)
  {
    char ch;

    for(;;) {
        ch = getchar();
        if(isspace(ch)){
            printf("%c is white space\n", ch);
        }
        if(ch == '.'){
            break;
        }
    }

    return 0;
  }

f

 is white space
d

 is white space
s

 is white space
sa

 is white space
w

 is white space
.








18.10.isspace
18.10.1.isspace