C in Visual Studio 2012

Question

We have to prepare a presentation in "Structured Programming" (Ansi C) about the usage of C in Visual Studio. I already found out how to make a C file and use the C++ compiler to run it, but there are still some questions left where i didn't found a awnser yet.

For example:

#include<stdio.h>
#include<time.h>
#include<stdlib.h>

int main(void){

srand((unsigned int)time(NULL)); //seed for random number..
unsigned int ran = rand();

printf("Helloooo World");
printf("%u",ran);

getchar();
return 0;
}

On Linux with vim it worked. But with Visual Studio I get the errors: http://www.pic-upload.de/view-25860939/Capture.jpg.html

1. Problem with my random seed.
2. Problem with the rand() function.

I think it is because of my included functions, and now my question is what functions Visual Studio owns for C, or what I have to change to make my program run in Visual Studio?

I would be really glad to read some answers. And i hope that i didn't was just to stupid to find the answers here.. :'D

Answer 1

Try:

include<stdio.h>
#include<time.h>
#include<stdlib.h>

int main(void){

    unsigned int ran;//<--- Declare ran here.

    srand((unsigned int)time(NULL)); //seed for random number..
    ran = rand(); ////<--- Use ran here (as before).

    printf("Helloooo World");
    printf("%u",ran);

    getchar();
    return 0;
}

Visual Studio 2012 doesn't yet support C99. I mean it's only 12 years prior!!!

You have to declare your variables at the start of functions when compiling C.

I know! Shish!