In C language, what is an inline function?

Inline functions can be replaced where the function call occurs. Function substitution is always the compiler's choice.

• In an inline function, the function call is replaced by the actual program code.

Most inline functions are used for small calculations. They are not suitable for large calculations.

• Inline functions are similar to ordinary functions. The only difference is that we put a keyword inline before the function name.

Inline functions are created using the following syntax -

inline function_name (){
   //function definition
}

Example

The following are inline functions for a C program:

#include<stdio.h>
inline int mul(int a, int b) //inline function declaration{
   return(a*b);
}
int main(){
   int c;
   c=mul(2,3);
   printf("Multiplication:%d</p><p>",c);
   return 0;
}

Output

When the above program is executed, the following results will be produced-

6

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