how remove null character from string

[aramosvizcarra]

Hi All,

I couldn't find an specific answer to my problem. I have a char array which I converted to a string so I could find a substring.
If the substring match a requirement the original char array should change and it would be printed via cout.
Example:

Original char array: "msg: this is a message"
Requirement: start with "msg:"
If it matches return "I received msg: this is a message --received"

but when I print that I see the following:

"I received msg: this is a message^%$^% --received"

If there is a correct way to do this I would greatly appreciate some advice.

Thanks!

[ResidentBiscuit]

std::string has a constructor that takes a null-terminated C-string as an argument.

char arr[] = "This is a C-string";
std::string string(arr);

[plexus]

What's your code for: "... the original char array should change ...", I mean, how do you "change" the char array currently?

Or you skip the char[] -> string conversion and search the char array directly with strncmp()

[aramosvizcarra]

The original char array actually doesn't matter , but I need to return a char array like I explained before, this means some characters before and after the original array.
I'll try that suggestion tonight and give you an answer.
Thanks for the help

[plexus]

If you work with char[] try strcat() or strncat() to join two strings together.
With std:string just use the + operator.

[ResidentBiscuit]

std::string has two methods for returning the internal char array. Look at c_str() and data().

[aramosvizcarra]

Perfect, thanks ResidentBiscuit. Now I got into another issue related which I'll post as a new question so I don't mess things up.