isprint : isprint « ctype.h « C Tutorial

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C Tutorial » ctype.h » isprint 
18.8.1.isprint
ItemValue
Header filectype.h
Declarationint isprint(int ch);
Returnreturns nonzero if ch is a printable character, including a space; otherwise zero is returned.


In ASCII code, printable characters are in the range 0x20 through 0x7E.

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

  int main(void)
  {
    char ch;

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

    return 0;
  }
a
a is printable
s
s is printable
d
d is printable
f
f is printable
.
. is printable
18.8.isprint
18.8.1.isprint
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