For C users. I had some head banging up the wall because of differencies how scanf worked in my WSL environment and a given here environment. Here is a program that worked in my WSL window: // Declare second integer, double, and String variables. int my_integer = 0; double my_duoble = 0.0; char *my_string; char final_string; my_string = (char)malloc(100 * sizeof(char)); final_string = (char*) malloc(200 * sizeof(char)); if(my_string == NULL || final_string == NULL) { printf("Memory allocation failed."); return 1; }

// Read and save an integer, double, and String to your variables.
scanf("%d", &my_integer);
scanf("%lf", &my_duoble);   
scanf("%[^\n]s", my_string);

// Print the sum of both integer variables on a new line.
printf("%d\n", i + my_integer);

// Print the sum of the double variables on a new line.
printf("%.1lf\n", d + my_duoble);

// Concatenate and print the String variables on a new line
// The 's' variable above should be printed first.
strcpy(final_string, s);
strcat(final_string, my_string);
printf("%s\n", final_string);
free(my_string);
free(final_string);

However, in the given environment nothing would be put into my_string. The remedy was to clean out a buffer from the previous input: <...>
// Read and save an integer, double, and String to your variables. scanf("%d", &my_integer); scanf("%lf", &my_duoble);

int leftover = 0;
while ((leftover = getchar()) != '\n' && leftover != EOF);

scanf("%[^\n]s", my_string);
// Print the sum of both integer variables on a new line.
printf("%d\n", i + my_integer);

    Then my program worked. But adding a buffer cleaning code in my program in WLS, caused it crash.

Just wondering why that may be.... <...>

Then my program worked. But adding a buffer cleaning code in my program in WLS, caused it crash. Just wondering why that may be....