Comparing chars together?

Question

I'm fairly new to C++ and have run into a problem when trying to compare two chars, here is an example:

#define PartOne "He"
#define PartTwo "llo"
char Final1Var[] = PartOne PartTwo;
char ComapreVars[] = "Hello";

if(Final1Var == ComapreVars)//This is were the problem occurs, the chars are supposed to be equal to each other BUT for some reason the 'if' statement ends up determining they're not?
   InGameDialog::Alert("They Match");
else
    InGameDialog::Alert("They Don't Match");

What is going wrong with the code? I can't imagine why this wouldn't work? Any suggestions?

You may want to look at [strings](http://www.cplusplus.com/reference/string/string/) — Stephen, May 01 '16 at 04:28
This is not `cimparing two chars`. This is comparing two *C-style character arrays*. Use `std::string` instead for your string-related needs. — n. m. could be an AI, May 01 '16 at 04:30

score -1 · Answer 1 · answered May 01 '16 at 04:29

-1

in c++ character array's could not be compared using == operator you have to use strcmp function or string comparison function.

answered May 01 '16 at 04:29

Jaswant Singh Ranawat

53
4

score -1 · Answer 2 · edited May 23 '17 at 12:23

This is a very common question. I'll mark it as duplicate once I find a good answer to this among the other questions.

In the mean time, you're not comparing chars, you're comparing char[]s, which is entirely different. You'll want to use strcmp, strncmp, or std::string types would be an even better solution.

What is array decaying? has some reasonable explanations for what's going on in your code and why.

Comparing chars together?

2 Answers2