C ispunct()

The function prototype of ispunct() is:

int ispunct(int argument);

If a character passed to the ispunct() function is a punctuation, it returns a non-zero integer. If not, it returns 0.

In C programming, characters are treated as integers internally. That's why ispunct() takes an integer argument.

The ispunct() function is defined in the ctype.h header file.

Example 1: Program to check punctuation

Output

: is a punctuation

Output

All punctuations in C: 
! " # $ % & ' ( ) * + , - . / : ; < = > ? @ [ \ ] ^ _ ` { | } ~

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