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How do you check if an input is an integer C?

Mukul Goenka 703 09 Nov 2021

How do you check if an input is an integer C?

1 Answers

Ravi Vishwakarma 10 Nov 2021

#include <stdio.h>

int main()

{

    int num; 

    char term; 

       printf('Enter integer :'); 

       if(scanf('%d%c', &num, &term)==2 && (term =='\n'||term==' ')) 

            printf( 'Valid integer %d %c\n',num, term); 

       else 

            printf('Not a valid integer\n'); 

    return 0;

}

Output :

Enter integer : 45n6

Not a valid integer

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