isblank : isblank « ctype.h « C Tutorial

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C Tutorial » ctype.h » isblank

18.3.1.isblank

Item	Value
Header file	ctype.h
Declaration	int isblank(int ch);
Return	returns nonzero if ch is blank. By default, the blank characters are space and horizontal tab.

#include <ctype.h>

  #include <stdio.h>



  int main(void)

  {

    char ch;



    for(;;) {

       ch = getchar();

       if(ch == '.') {

          break;

       }

       if(isblank(ch)){

           printf("%c is a word separator\n", ch);

       }

    }



    return 0;

  }

q
q is a letter
w
w is a letter
q
q is a letter
.

18.3.isblank
	18.3.1.	isblank

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