In C, built-in functions are used to carry out typical tasks including memory allocation, input/output operations, string manipulation, and more. The built-in C functions print (), scanf(), strcmp(), strlen(), and pow() are a few examples of frequently used ones.

Built-in functions are predefined functions that are provided by the C standard library. These functions are available for use in any C program without requiring any additional setup or explicit declaration. They serve various purposes and provide functionality for common tasks such as input/output, string manipulation, mathematical operations and memory allocation etc.

Built-in functions, the compiler creates inline code at the time of compilation. Every call to a built-in function replaces a runtime call to the dynamic library function with the same name.

For built-in functions, the compiler creates inline code at the time of compilation.
Every call to a built-in function replaces a runtime call to the dynamic library function with the same name.
In C, built-in functions are used to carry out typical tasks including memory allocation, input/output operations, string manipulation, and more.
The built-in C functions print (), scanf(), strcmp(), strlen(), and pow() are a few examples of frequently used ones.

Built-in functions are ones for which the compiler generates inline code at compile time.