Deleting constant char* created using c_str()

[Skejan]

Hello, I wrote small function which translates text in my application:

map<string,stri ng> localization;
1 string: universal identifier of localized text
2 string: text to localize

const char* App::localize(string local)
{
    if (!localization.count(local))
    {
        return "CANNOT FIND THIS TEXT";
        }
    else
    {
        return localization[string(local)].c_str();
    }
}

The problem is when I change language of my application at runtime -> It loads new values into "map<string,str ing> localization;" and erases the old ones so all constant char pointers become invalid.

[Savage]

Hello, I wrote small function which translates text in my application:

map<string,stri ng> localization;
1 string: universal identifier of localized text
2 string: text to localize

const char* App::localize(string local)
{
    if (!localization.count(local))
    {
        return "CANNOT FIND THIS TEXT";
        }
    else
    {
        return localization[string(local)].c_str();
    }
}

The problem is when I change language of my application at runtime -> It loads new values into "map<string,str ing> localization;" and erases the old ones so all constant char pointers become invalid.

Then don't use constant char pointers.

BTW,welcome to TSDN!

Savage

[Skejan]

Then don't use constant char pointers.

:-) thank you for this advice, but unfortunately I have to use them. I am using FLTK library for the gui and its widget labels must be constant char*s

[Savage]

:-) thank you for this advice, but unfortunately I have to use them. I am using FLTK library for the gui and its widget labels must be constant char*s

Is that function part of some class?

If it is,u can make a instance of the class when new language is selected,so that constant will remain valid.

Savage