c-course/c-basic/foo.c

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/**
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foo.c - foo example
Copyright (C) 2023-2024 Mert Gör and contributors
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Feel free to send an email to mertgor@masscollabs.xyz for your questions
**/
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#include <stdio.h>
int foo()
{
printf("I am foo\n");
}
int main()
{
foo();
}
/**
In the written book it is foo() and main() and it returns this warning
~/Projects/hwpplayer1/c-course/c-basic $ gcc foo.c
foo.c:3:1: warning: return type defaults to int [-Wimplicit-int]
3 | foo()
| ^~~
foo.c:8:1: warning: return type defaults to int [-Wimplicit-int]
8 | main()
| ^~~~
**/