How can i write a program that takes input and shows the number of characters and spaces?

[heavy dove]

ive been at it for a while now and still cant figure it out....i know its prolly going to use a loop function but i dunno how to impliment it....any tips would be helpful thanks

[static fiber]

When your question is answered use !solved to mark the question as resolved.

Remember to ask specific questions, provide necessary details, and reduce your question to its simplest form. For tips on how to ask a good question use !howto ask.

[heavy dove]

also i can not use strlen() or arrays

TwT

[wild gorge]

char* is an address. You can iterate through each bit of the array it points to (and get the value) until you reach the null terminator.

[heavy dove]

i havent learned that function yet but i guess ill just have to look it up then n see how it work

[formal rivet]

what they mean is that your input is likel a c-string, hence a char* pointer that has the extra property to be null-terminated: there is a special character '\0' at the end of your data, that represents the end of it.

Consider the following example, as an example:

;compile

#include <stdio.h>


int main(void) {
  char *message = "Hello, world!";

  int length = 0;

  int i = 0;
  for(;;) { /* loop forever. manual break below */
    char c = message[i];
    if(c == '\0') {
      // end of string, exit
      break;
    } else {
      length += 1; // increment the length otherwise
    }
    i += 1;
  }

  printf("Length of \"%s\" is %d\n", message, length);
}

[little whale]

Program Output

Length of "Hello, world!" is 13

judekeyser | 49ms | c | x86-64 gcc 13.2 | godbolt.org

[formal rivet]

now, what you want is not the length of the string, but the number of characters and the numbr of spaces. so if the code example above is clear, you could try to adapt it to compute two things

[surreal hound]

@heavy dove still confused?

[heavy dove]

I'm still trying to understand how this break sequence works...what does c == '\0' mean?

[heavy dove]

Sorry yeah

[safe flint]

It compares the character in the variable c with the character constant '\0'. This character is used to mark the end of a string (character array). in C "abc" will be the characters 'a', 'b' and 'c' plus one more character, a '\0' which is just an 8 bit character value with all bits set to zero. It is used to mark the end of the string.

Basically, it breaks the loop at the end of the string.

[heavy dove]

Ohh that makes a little more sense

Thanks

I'll try to do it now

[static fiber]

@heavy dove Has your question been resolved? If so, type !solved :)