Char, %c, won't print

[bsears]

Got some homework I'm working on and I'm having issues getting a char datatype to display, or maybe it's not reading the input prompt. I've tried a dozen different ways of writing this and it still won't display.

#include <stdio.h>


int main(void)
{
char grade;

printf("Enter in a grade: A, B, C, D, or F \n");
scanf_s("%c", &grade);

printf("I expect my grade to be %c in this class. \n", grade);

return 0;
}

[Disch]

You're using the weird "safe" version of scanf (and I use the word "safe" only because that's what the 's' stands for).

My advice: don't use it. Use the normal scanf. IE: use scanf, not scanf_s:

scanf("%c", &grade); // <- this will work fine 

If you must use scanf_s, then you need to supply the size of the data being read:

scanf_s("%c", &grade, 1); // <- this will also work 

[bsears]

Great! That worked with the ', 1' at the end. My compiler won't let me use regular scanf and prompts with an "error C4996" and is forcing me to use scanf_s which we obviously haven't covered in class.

I truly appreciate your help on this.

[Disch]

My compiler won't let me use regular scanf and prompts with an "error C4996" and is forcing me to use scanf_s which we obviously haven't covered in class.

I really hate that about VS. But it's fixable.

The easiest way to fix it is to put this at the top of your file:

#define _CRT_SECURE_NO_WARNINGS 

[bsears]

Ah gotcha. That's stupid to have to include that for each program I'll be writing.

[Disch]

I agree. Fortunately for me, I primarily code C++ and not C, so I don't use these functions often.