How to convert the String to Integer in C
In this post we will give you information about How to convert the String to Integer in C. Hear we will give you detail about How to convert the String to Integer in CAnd how to use it also give you demo for it if it is necessary.
we are going to learn about how to convert the string to an integer in C.
Using atoi() function
In C, we can use the atoi() function to convert a string to an integer.
The atoi() function is available in stdlib.h library.
Here is an example, that converts the string “1011” to an integer 1011:
#include<stdio.h>#include <stdlib.h>int main() { // Converting a numeric string to integer char str[5] = "1011"; int a = atoi(str); printf("Converting '1011': %dn", a);}If a string starts with alphanumeric then the atoi() function returns 0.
Example:
#include<stdio.h>#include <stdlib.h>int main() { // Converting a numeric string to integer char str[5] = "olaa"; int a = atoi(str); printf("Converting '1011': %dn", a);}Output:
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