Thread: Convert char to int in C and C++

Hello All, Can anyone know How do I convert a char to an int in C and C++?

I have checked this <<crappy site removed>> to check how I convert it and its difference to read the value as an ascii code, I have wrote

Code:

[COLOR=var(--highlight-literal)]char[/COLOR][COLOR=var(--highlight-color)] a = [/COLOR][COLOR=var(--highlight-variable)]'a'[/COLOR][COLOR=var(--highlight-color)];[/COLOR][COLOR=var(--highlight-literal)]int[/COLOR] ia = ([COLOR=var(--highlight-literal)]int[/COLOR])a;  [COLOR=var(--highlight-comment)]/* note that the int cast is not necessary -- int ia = a would suffice */[/COLOR]

to convert the character '0' -> 0, '1' -> 1, etc,

Code:

[COLOR=var(--highlight-literal)]char[/COLOR][COLOR=var(--highlight-color)] a = [/COLOR][COLOR=var(--highlight-variable)]'4'[/COLOR][COLOR=var(--highlight-color)];[/COLOR][COLOR=var(--highlight-literal)]int[/COLOR] ia = a - [COLOR=var(--highlight-variable)]'0'[/COLOR];
[COLOR=var(--highlight-comment)]/* check here if ia is bounded by 0 and 9 */[/COLOR]
[COLOR=var(--highlight-comment)]
[/COLOR]

First of all, please post your code as "Plain Text" without all the COLOR and other formatting. Then we can assist you.

Also:

If you are attempting to learn from painfully inadequate online tutorials, (Including the link you provided) YouTube videos, or some book claiming to teach you in a short time, then THROW THEM AWAY!

Short of taking a course in C Programming from a qualified instructor, you need to study a good book on the C Programming Language, cover to cover, and do all the exercises at the end of each chapter! Choose one of the three listed below:

C Programming, A Modern Approach
Author: K. N. King

C Programming: A Modern Approach - Second Edition


C Primer Plus, 6th Edition
Stephen Prata

https://www.pearson.com/us/higher-ed...n/PGM4399.html


C How to Program, 8/e

C How to Program, 8/e | Deitel & Associates, Inc.