Re: std::setlocale(...) return value ??

[Liu Hao <lh_mouse@xxxxxxx>]

On 2017/5/4 16:33, Papa wrote:
> According to the C++ Reference setlocale(...) returns a 'char*',
> however, when trying to assign this function's return value to another
> 'char*', it creates an run time error.
> Here is my example:
>
> <snip>
> void jme::Locale::setGlobalLocale(const std::string& str){
>      char* arg = new char[str.length()+1];
>      strcpy(arg, str.c_str()); // const char* to char* -- Works
>      char* cp = new char[1024];
>      strcpy(cp, std::setlocale(LC_ALL, arg)); // char* to char* --  Does
> not work ??
>
>     delete arg;
>     delete cp;
> }
> </snip>
> The code compiles, but as I said before it does not run.
>
> What am I missing? How can I solve this problem?
This is a RTFM question. `setlocale()` returns a null pointer in case of 
failure and in that case you are passing a null pointer to `strcpy()`.

--
Best regards,
LH_Mouse