The Function Atexit ()() in C

This guide covers the function atexit ()() in c with practical context and easy-to-follow details. Use it to understand the subject and apply the information confidently.

Declare the Function Atexit ()() in C

Below is the declaration for atexit () in C:

 int atexit ( void (* func )( void )) 

Parameters

Func : This is the function to be called at the end of the program.

Returns the Value

This function returns a value of 0 if this function is successfully registered. If it fails, it returns a value other than 0.

For Example

The following program C illustrates the usage of atexit () in C:

 #include #include void functionA () { printf ( "Vi du mot ham functionAn" ); } int main () { /* Dang ky mot ham ket thuc chuong trinh */ atexit ( functionA ); printf ( "Bat dau chay phan chuong trinh chinh .n" ); printf ( "Thoat chuong trinh chinh .n" ); return ( 0 ); } 

Compiling and running the above C program will result:

According to Tutorialspoint

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