ispunct in c

What is ispunct in c programming?

ispunct in c checks whether the passed character is punctuation character or not.

Punctuation character is any graphic character.

It should not be an alphanumeric character.

This function returns non-zero digit if passed character is punctuation character otherwise zero.

This function is defined in ctype.h header file.

Prototype

int ispunct(int c);

Parameter

This function takes integer as input parameter.

Return value

This function returns non-zero digit if passed character is punctuation character otherwise zero.

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Example program for ispunct function in c

#include<stdio.h>
#include<ctype.h>
int main()
{
  int x='t';
  if(ispunct(x))
    printf("This is an punctuation character \n");
  else
    printf("This is not an punctuation character \n");
  return 0;
}

Code explanation

ispunct function is called to check whether the passed character is a punctuation character or not. The result is being printed onto the console.

ispunct() Man page

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Difference between ispunct and isgraph in c

ispunct in c checks whether the passed character is a punctuation character or not. isgraph in c is used to find whether the passed character is graphical representable or not.

ispunct does not supports alphanumeric value. isgraph supports alphanumeric character.

Prototypes are as follows

int ispunct(int c);

int isgraph(int c);

ispunct function in c	isgraph function in c
Checks whether the passed character is punctuation character or not.	Used to find whether the passed character is graphical representable or not.
int ispunct(int c);	int isgraph(int c);

Read more on isgraph function in c programming

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