Plus integer with string in C

Question

I have a sample code in C below:

#include<stdio.h>
int main(){
    int out = 4 + '4';
    printf("%d",out);
    return 0;
}

When I run it, the output value it return is 56. Can someone explain why?

Visit [ASCII table](http://www.asciitable.com/) `4: 52` in ASCII code representation. when we add 4 to 52 we have 56. all `char` values in `C` cast to correspond integer — EsmaeelE, Aug 27 '17 at 06:57
I suggest add a new line after last output to screen. `printf("%d \n",out);` — EsmaeelE, Aug 27 '17 at 06:59

jodag · Answer 1 · 2017-08-27T06:51:13.487

3

'4' is a representation of the int value 52. 4 + 52 = 56.

edited Aug 27 '17 at 06:51

answered Aug 27 '17 at 06:43

jodag

score 1 · Accepted Answer · edited Aug 27 '17 at 10:30

1

ASCII value of '4' is 52.

Char value '4' has integer value 52 which is its ASCII Code. This is added to integer value 4.

Thus the result 56

edited Aug 27 '17 at 10:30

Bo Persson

answered Aug 27 '17 at 06:42

jophab

2 Answers2