Question

How to compile to c11 standard (ISO/IEC 9899:2011 (C11)) in codelite in C

Answer 1

From Menu: Settings -> Build Settings... -> Compilets

On Build Settings Dialog: gnu gcc -> Compiler Option: Click On New... button and Add Switch: -std=c11

On Build Settings Dialog: gnu gcc -> Linker Options: Click On New... button and Add Switch: -std=c11

On Workspace -> Open Active Project Settings... (Alt-F7): Common Settings -> Compiler -> C Compiler Options: Click and Add -std=c11

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Answer 2

// Example: compile with -std=c11 switch

#include <stdio.h>

int main(int argc, char **argv) 
{
    int a = 20;
    
    printf("a = %d\n", a);
    
    int b = 30;
    
    printf("b = %d\n", b);
    
    int c = 30;
    
    printf("c = %d\n", c);
    
    return 0;
}


/*
run:

a = 20
b = 30
c = 30

*/

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