> For the complete documentation index, see [llms.txt](https://muradkarakas.gitbook.io/sodium_documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://muradkarakas.gitbook.io/sodium_documentation/language-reference/lexical-elements/expressions-and-operators/function-calls-as-expressions.md).

# Function Calls as Expressions

A call to any function which returns a value is an expression.

```
int getNumber(void) [
    return 5;
}
 
void test() {
    int a;
    a = 10 + getNumber();
}
```