hwpplayer1 branch initial commit

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Mert Gör
2024-02-14 08:57:10 +03:00
parent 6a85607ff0
commit 8bd56af0aa
17 changed files with 4 additions and 620 deletions

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/**
scope.c - scope and variables explained
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
**/
#include <stdio.h>
int main() {
int a;
{
int b;
b = 20;
a = 10;
printf("a : %d, b : %d\n", a, b); // correct way to get done the job/task
}
printf("a : %d\n", a); // correct way to get done the job/task for a variable
// printf("b : %d\n", b); // error !
/**
~/Projects/hwpplayer1/c-course/c-basic $ gcc scope.c
scope.c: In function main:
scope.c:35:22: error: b undeclared (first use in this function)
35 | printf("b : %d\n", b); // error !
| ^
scope.c:35:22: note: each undeclared identifier is reported only once for each function it appears in
**/
return 0;
}
/**
~/Projects/hwpplayer1/c-course/c-basic $ ./a.out
a : 10, b : 20
a : 10
**/