GCC ignore redundant function parameters

GCC allows us to give more arguments than needed. But G++ does not allow it. I have checked c99 standard document. I can't find a description of this behavior. So it is possible that GCC has chosen to allow such kind of function invocations.

 

 

 

#include <stdio.h>

void show()
{
    printf("show something\n");
}

int main(int argc, const char *argv[]) 
{
    show("abc");
}

 

jing@jingguolin:~$ gcc code.c

jing@jingguolin:~$ ./a.out 

show something

jing@jingguolin:~$ g++ code.c

code.c: In function ‘int main(int, const char**)’:

code.c:3: error: too many arguments to function ‘void show()’

code.c:10: error: at this point in file