Readability CS50 Not counting the spaces

Question

In my if statement I am trying to say, "if there is a space in strlen subtract that space then print strlen." My goal is to count only the letters that appear in the string and not the spaces. If there is something I can do to fix a nudge in the right direction would be appreciated. Im currently down to one error.

#include <stdio.h> 
#include <cs50.h>
#include <string.h>

int main (void)

{
   int x = ' ';
// prompt user for text
   string t = get_string("Enter Text:\n");
   if(strlen(t) == x)
   {
       strlen(t) - x;
   }
   else printf("letters: %lu\n" , strlen(t));
      
      
   
    
    
// for every letter count 1 and print total





}

Disclaimer: before I had x as an integer I was using ' ' in it's place to represent a space(' '). I thought maybe if I gave space(' ') a value such as x. the program would be able to understand x is a space. take x out. this didn't work for me though.

error message reads: clang -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wno-unused-parameter -Wno-unused-variable -Wshadow    readability.c  -lcrypt -lcs50 -lm -o readability
readability.c:13:18: error: expression result unused [-Werror,-Wunused-value]
       strlen(t) - x;
       ~~~~~~~~~ ^ ~

Answer 1

string input = get_string("Text:"); //getting input from the user
int len = strlen(input); //determining the length of the string
int space = 0; //declaring a variable to count whitespaces
for (int i = 0; i < len; i++) //declaring a for loop to check each element of the string
    {
        if (input[i] == ' ')
        {
            space++;
        }
    )
len = len - space; //removing all whitespaces and keeping only letters and special characters

This code will be able to solve your problem of detecting whitespaces and eliminating them.

Problems in your code

• Declaring a whitespace using int is not a good practice.
• When you are writing (strlen(t) == x ), this means you are comparing just the length of the string to a variable. You will not be able to access each of the element of the string separately.