how to prevent user from entering char when needing int in c
#include <stdio.h>
#include <stdlib.h>
int main() {
int userInput;
char buffer[100];
printf("Enter an integer: ");
if (fgets(buffer, sizeof(buffer), stdin) == NULL) {
printf("Error reading input.\n");
return 1;
}
if (sscanf(buffer, "%d", &userInput) != 1) {
printf("Invalid input. Please enter an integer.\n");
return 1;
}
printf("You entered: %d\n", userInput);
return 0;
}