GLib::ustring type casting question

[samjh]

I'm trying to convert a numerical input into a floating-point value. Specifically it is a gtkmm application, the input is of type GLib::ustring, and it needs to be converted into a standard double.

Is there a clean/simple way to do this? I've tried the usual set of C++ type casts (ie. static_cast, et al.), but alas, it is not possible.

[dexter]

You cannot just use casting to convert from a string to a float. I'm not that familiar with glib, but check out this website: http://www.gtkmm.org/docs/glibmm-2.4/docs/reference/html/classGlib_1_1ustring-members.html. You can get a standard char* array by using c_str(). Next you can use atof (http://www.cplusplus.com/reference/clibrary/cstdlib/atof.html) to get a floating point number out of the string.



Glib::ustring testUString("1.23456789");
char * UStringToCharArray = testUString.c_str();
double floatingPoint = atof(UStringToCharArray);

(not tested)

[samjh]

Ah well, I was hoping there would be a cleaner way to do it.

Back to the hack...