Attached a small example taken from Bruce Eckel Thinking in C++
On cygwin both this call
cout.imbue(locale("en_US.UTF-8"));
cout.imbue(locale("fr_FR.UTF-8"));
raise exception
"terminate called after throwing an instance of 'std::runtime_error'
what(): locale::facet::_S_create_c_locale name not valid
Aborted (core dumped)"
I could understand eventually the second one, but "English (US)" is the
current windows locale so I expected that at least "en_US.UTF-8" is
accepted.
What I am missing ?
Regards
Marco
//: C04:Locale.cpp {-g++}{-bor}{-edg} {RunByHand}
// Illustrates effects of locales.
#include <iostream>
#include <locale>
using namespace std;
int main() {
locale def;
cout << def.name() << endl;
locale current = cout.getloc();
cout << current.name() << endl;
float val = 1234.56;
cout << val << endl;
// Change to US
cout.imbue(locale("en_US.UTF-8"));
current = cout.getloc();
cout << current.name() << endl;
cout << val << endl;
// Change to French/France
cout.imbue(locale("fr_FR.UTF-8"));
current = cout.getloc();
cout << current.name() << endl;
cout << val << endl;
cout << "Enter the literal 7890,12: ";
cin.imbue(cout.getloc());
cin >> val;
cout << val << endl;
cout.imbue(def);
cout << val << endl;
} ///:~
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