Question

I am trying to remove spaces from the end of a char array (string).

This is the pseudo code of what I am doing, but it keeps deleting the whole string:

if(string length - 1 != a space)
    return

Otherwise, it must equal a space, so

while *mypointer-- != a space
//This should loop back to where there is a character.

Outside of the while loop, I now add one to the pointer by doing

mypointer ++;

and then set mypointer ‘\0’ to signal the end of the string.

I am doing something fundamentally wrong inside of my while, but I cannot seem to figure it out. What could it be?

Answer 1

A little clairvoyance:

while(*mypointer == a space) {
    --mypointer;
}
mypointer[1] = '\0';

Notice that it is == a space not != a space.

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Edit:
If I were going to write this, I’d probably really use something like:

#include <string.h>
...

char *mypointer = strrchr(string, ' ');
if (mypointer) *mypointer = '\0';