stdlib.h Archives - Codeforwin

atoll() in C – Syntax, Use and Example

C programming July 20, 2025January 13, 2018

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atoll() function
Syntax
Example program

Write a C program to input string from user and convert string to long long using atoll() library function. How to convert string to long long int type using atoll() library function in C programming?

strtoull() in C – Syntax, Use and Example

C programming July 20, 2025January 13, 2018

Write a C program to input string from user and convert string to unsigned long long using strtoull() library function. How to convert string to unsigned long long int using strtoull() library function in C programming?

strtoll() in C – Syntax, Use and Example

C programming July 20, 2025January 13, 2018

Quick links

strtoll() function
Syntax
Example program

Write a C program to input string from user and convert string to long long using strtoll() library function. How to convert string to long long int using strtoll() library function in C programming?

strtoul() in C – Syntax, Use and Example

C programming July 20, 2025January 11, 2018

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strtoul() function
Syntax
Example program

Write a C program to input string representation of integer and convert string to unsigned long using strtoul() library function. How to convert string to unsigned long int using strtoul() library function in C programming?

strtol() in C – Syntax, Use and Example

C programming July 20, 2025January 8, 2018

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strtol() function
Syntax
Example program

Write a C program to input string representation of integer and convert string to long using strtol() library function. How to convert string to long using strtol() library function in C programming?

atof() in C – Syntax, Use and Example

C programming July 20, 2025January 7, 2018

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atof() function
Syntax
Example program

Write a C program to input string representation of number and convert string to double using atof() library function. How to convert string to double using atof() library function in C programming?

atol() in C – Syntax, Use and Example

C programming July 20, 2025January 6, 2018

Quick links

atol() function
Syntax
Example program

Write a C program to input string representation of integer and convert string to long using atol() function. How to convert string to long using atol() function.

atoi() in C – Syntax, Use and Example

C programming July 20, 2025January 5, 2018

Quick links

atoi() function
Syntax
Example program

Write a C program to input string representation of integer and convert string to int data type. C program to convert string to integer using atoi() library function.

In programming it is often required to convert string representation of integer to int type. In this post I will explain how to convert string to integer using pre-defined atoi() library function.