My program does not stop on condition

Question

So- my program does not stop on condition (str2[o] != \'+\') So if anyone knows why and how to fix it it will help me ( :.

this is My code -

#include <         


        

Answer 1

At the moment + will be copied to str2, o index will point to the next char, which most probably won't be +, so you condition will never be true. This could be possible solution :

    do
    {
        str2[o] = str3[w];
        o++;
        w++;
    }
    while(str2[o-1] != '+' );

Answer 2

while(str2[o] != '+') 
    {
        str2[o] = str3[w]; 
        o++;
        w++;
    }

Assume o == x. You're assigning value to str2[x]. In while, you are seeing if str2[x+1] == '+', but str2[x+1] is empty.

Answer 3

you need to check the last updated value in str2, but you are checking the next value which is not initialized with a character so the loop will keep on repeating itself. you can do this:

while(str2[o-1] != '+'){

     str2[o] = str3[w]; 
    o++;
    w++;
}

Answer 4

This line

while(str2[o] != '+')

provokes undefined behaviour as str2's elements had not been properly initialised before being read.

To fix this do

char str2[9] = "":