You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
15 lines
603 B
15 lines
603 B
3 years ago
|
// This is called an include guard, which ensures that the header is only
|
||
|
|
// included once. You could alternatively use '#pragma once'. See
|
||
|
|
// https://en.wikipedia.org/wiki/Include_guard.
|
||
|
|
#ifndef HELLO_WORLD_H
|
||
|
|
#define HELLO_WORLD_H
|
||
|
|
|
||
|
|
// Declare the 'hello()' function, which takes no arguments and returns a
|
||
|
|
// 'const char *', i.e. a pointer to a character (in this case the first
|
||
|
|
// character in a string). The function itself is defined in the hello_world.c
|
||
|
|
// source file. Ths function is called by the test case(s) in the test source
|
||
|
|
// file test/test_hello_world.c.
|
||
|
|
const char *hello(void);
|
||
|
|
|
||
|
|
#endif
|