How to call standard C library from Swift?

Question

I want to use C libraries such as stdio.h, stdlib.h, etc. in my swift application. But I can't import . How can I do?

import <stdio.h> // BAD
#include <stdio.h> // BAD
#import <stdio.h> // BAD
import Foundation // cannot use printf etc.

Answer 1

To import C functions in pure Swift on the OS-X platform use:

import Darwin

This can be seen as one of the sub-imports inside Foundation.swift, but importing it individually avoids potentially unnecessary processing of Cocoa and other iOS/OSX framework modules.

NeilJaff's answer works because it causes Foundation and all submodules to be imported, but import Darwin is more targeted.