Thread: printf doesn't print a string

I can't print a string with printf in compiler, the code works fine in an online compiler. What can be wrong?

Example of a code just to make you sure that the code is correct:

Code:

#include <stdio.h>

int main() {
	char string1[20];
	char string2[] = "string literal";
	printf("Enter a string: ");
	scanf_s("%s", string1);
	printf("string1 is %s,\nstring2 is %s,\nstring1 with spaces between characters is:\n",string1,string2);
	for (int i=0;string1[i]!='\0';i++) {
		printf("%c ", string1[i]);
	}
	return 0;
}

What compiler are you using?

Does your code compile without errors or warnings?

Here are the errors/warnings my compiler produces:

main.c||In function ‘main’:|
main.c|7|warning: implicit declaration of function ‘scanf_s’ [-Wimplicit-function-declaration]|
main.c|9|error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode|
main.c|9|note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code|

By the way if you want to try to use scanf_s() I suggest you read the documentation for this function and use it correctly.

Jim

Visual Studio 2012. And I "have" to use scanf_s because VS updated and won't accept scanf. What's wrong with it in this code, though?

This is what I get:

WoodSTokk thank you, but how did you understand that the problem is with scanf_s? From the screen shot or the code itself?