Re: Question about glibmm/Glib::ustring::format

["Waitman Gobble" <uzimac da3m0n8t3r com>]

On Sun, February 9, 2014 12:47 pm, Andrew Potter wrote:
> On Sun, Feb 9, 2014 at 4:14 AM, Waitman Gobble <uzimac da3m0n8t3r com>
> wrote:
>
> > Program received signal SIGABRT, Aborted.
> > [Switching to Thread 803006400 (LWP 100327)]
> > 0x0000000801e313ba in kill () from /lib/libc.so.7
> > (gdb) bt
> > #0  0x0000000801e313ba in kill () from /lib/libc.so.7
> > #1  0x0000000801e30069 in abort () from /lib/libc.so.7
> > #2  0x00000008016ce7da in ?? () from /lib/libcxxrt.so.1
> > #3  0x000000080085de68 in Glib::ConvertError::throw_func(_GError*) ()
> > from /usr/local/lib/libglibmm-2.4.so.1 #4  0x000000080086ed2f in
> > Glib::Error::throw_exception(_GError*) ()
> > from /usr/local/lib/libglibmm-2.4.so.1 #5  0x000000080087bcc2 in
> > Glib::ustring::FormatStream::to_string() const ()
> > from /usr/local/lib/libglibmm-2.4.so.1 #6  0x0000000000401de0 in
> > Glib::ustring::format<std::__1::ios_base&
> > (std::__1::ios_base&), std::__1::__iom_t5, double>(std::__1::ios_base& (
> >  const&)(std::__1::ios_base&), std::__1::__iom_t5 const&, double
> > const&) ( a1= 0x401e50: {std::__1::ios_base &(std::__1::ios_base &)}
> > 0x401e50
> > <std::__1::fixed(std::__1::ios_base&)>, a2=..., a3= 0x7fffffffd860:
> > 3.1428571428571428)
> > at /usr/local/include/glibmm-2.4/glibmm/ustring.h:1158 #7
> > 0x0000000000401696 in main () at testglib.cpp:9
> > (gdb)
>
> The code works fine for me, but I'm on Linux.
> FormatStream::to_string() has plenty of #ifdefs so its not entirely
> obvious what's happening.
>
> Can you catch the exception and print out the Glib::Error::what() ?
>
>
> Thanks.
> _______________________________________________
> gtkmm-list mailing list gtkmm-list gnome org
> https://mail.gnome.org/mailman/listinfo/gtkmm-list

Thanks Andrew, that helps. I'm no c++ ace.

#include <iostream>
#include <iomanip>
#include <glibmm.h>
#include <glib.h>

int main() {

        double value = 22.0 / 7.0;
        std::cout << value << std::endl;

try {
        Glib::ustring test =
Glib::ustring::format(std::fixed,std::setprecision(2),value);
} catch (Glib::Error e) {
        std::cout << "oops " << e.what() << std::endl;
}

}



# clang++ -o testglib `pkg-config --cflags --libs gtkmm-2.4` testglib.cpp

/testglib
3.14286
oops Could not open converter from 'WCHAR_T' to 'UTF-8'

Thank you,


-- 
Waitman Gobble
San Jose California USA
+1.510-830-7975


-- 
Waitman Gobble
San Jose California USA
+1.510-830-7975