There are three aspects of a C function. Function declaration A function must be declared globally in a c program to tell the compiler about the function name, function parameters, and return type.
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Function Aspects.
| SN | C function aspects | Syntax |
|---|---|---|
| 2 | Function call | function_name (argument_list) |
How do you call a function?
You call the function by typing its name and putting a value in parentheses. This value is sent to the function’s parameter. e.g. We call the function firstFunction(“string as it’s shown.”);
How do we call a function in C++?
A function declaration tells the compiler about a function name and how to call the function. The actual body of the function can be defined separately. int max(int, int); Function declaration is required when you define a function in one source file and you call that function in another file.
How do you call a function in C program?
Call by Reference:
- #include <stdio.h>
- int main()
- {
- int x = 10, y = 20;
- printf (” x = %d, y = %d from main before calling the function”, x, y);
- CallValue (&x, &y);
- printf( “\n x = %d, y = %d from main after calling the function”, x, y);
- }