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POGCC compile error: format ‘%c’ expects argument of type ‘char *’, but argument 2 has type ‘int’ [-Wformat]
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copied!<p>Ok, I'm a noob with C, but I think the code is basic and straightforward. This program is for a college assignment, and is supposed to have the 'isdigit()' function in it. Here is the code</p> <pre><code>//by Nyxm #include <stdio.h> #include <ctype.h> main() { char userChar; int userNum, randNum; srand(clock()); printf("\nThis program will generate a random number between 0 and 9 for a user to guess.\n"); /*I changed it from '1 to 10' to '0 to 9' to be able to use the isdigit() function which will only let me use a 1 digit character for an argument*/ printf("Please enter a digit from 0 to 9 as your guess: "); scanf("%c", userChar); if (isdigit(userChar)) { userNum = userChar - '0'; randNum = (rand() % 10); if (userNum == randNum) { printf("Good guess! It was the random number.\n"); } else { printf("Sorry, the random number was %d.\n", randNum); } } else { printf("Sorry, you did not enter a digit between 0 and 9. Please try to run the program again.\$ } } </code></pre> <p>When I try to compile, I get the following error</p> <pre><code>week3work1.c: In function ‘main’: week3work1.c:14:2: warning: format ‘%c’ expects argument of type ‘char *’, but argument 2 has type ‘int’ [-Wformat] </code></pre> <p>What on earth is going on? I am desperate for help. Any help at all. I am seriously about to just give up on this program. Why is it saying it expects argument of 'char *' when my textbook shows that "%c" is for regular ole 'char'? I am using nano, gcc, and Ubuntu if that makes any difference.</p>

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