This program reads from the file and converts the tokens to floats. You should read an entire line and tokenize it. Then you just need to create an array and add to the array at the right place in the code. #include <stdio.h> #include <stdlib.h> #include <memory.h> int main(void) { FILE *sp1; char line[256]; double … Read more
Check return value of scanf and clear input buffer in case of illegal input. Like this: #include <stdio.h> #include <stdbool.h> int main(void) { float sales, commission, earnings; int state; while(true) { printf( “Enter sales in dollars ( -1 to end ): ” ); if((state = scanf(“%f”, &sales )) != 1){ if(state == EOF) return 0; … Read more
In your code, please change scanf(“%f”,&a); scanf(“%c”,&op); scanf(“%f”,&b); scanf(“%f”,&r); to scanf(“%f”,&a); scanf(” %c”,&op); //notice here scanf(“%f”,&b); scanf(“%f”,&r); Without the leading space before %c, the \n stoted by previous ENTER key press after previous input, will be read and considered as valid input for %c format specifier. So, the second scanf() will not ask for seperate … Read more
The error is that %d in the format specifier of both scanf and printf represents decimal, so it expects an int (in the case of scanf, a pointer to int) Since you are declaring b and c as float, %d in the lines scanf(“%d”,&b); printf(“%d lbs is %d kgs.”,b,c); should be changed to %f respectively. … Read more
First the issue: the default tty mode is canonical, meaning input is made available line by line (see man termios) Once you fix that, you can use getchar() or read() to get one character at a time. The tty setting, example straight out of the man page of termios . #include <stdio.h> #include <termios.h> int … Read more
I would suggest providing functions for this code. The code is difficult to read and follow. Start with first creating a menu function, then get user input function; also do checks with-in the function that verify that the input if valid before it sends a character back. Then check to see if the guess is … Read more
Here char *firstName[50]; firstName is array of 50 character pointer, and if you want to store anything into each of these char pointer, you need to allocate memory for them. For e.g for (int counter = 0; counter < 10; counter ++) { firstName[counter] = malloc(SIZE_FIRST); /* memory allocated for firstName[counter], now you can store … Read more
From your tags, I’m guessing you’re using printf(). Simply leave out the “\n” character, which means “newline.”. In other words. printf(“> “); printf(“text\n”); This will print: > text