Question

How to convert char digit to int digit in C

Answer 1

#include <stdio.h> 

int main(void)
{   
    char ch = '3';
    
    int n = ch - '0';

    printf("%d", n);
     
    return 0;
}
  
        
/*
run:
     
3

*/

 

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Answer 2

#include <stdio.h> 

int main(void)
{   
    char ch = '5';
    
    int n = ch - 48;

    printf("%d", n);
     
    return 0;
}
  
        
/*
run:
     
5

*/

 

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