Question

How to check if compiler conforms to ISO Standard C with C

Answer 1

#include <stdio.h>
 
int main(void) {
    #if defined(__STDC__)
        #if (__STDC__ == 1)
            printf("Compiler conforms to ISO Standard C");
        #else
            printf("Compiler not conforms to ISO Standard C");
        #endif
    #else 
        printf("__STDC__ is not defined");
    #endif
  
    return 0;
}




/*
run:

Compiler conforms to ISO Standard C

*/

 

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