CODEWITHSUNDEEP
c++currencyicu
Ternary
Ternary

Reputation: 2411

ICU Currency Locale Get Denomination

Is there a way to probe an ICU Currency Locale for it's minimal denomination? For example US's would be $0.01, Korea (ko_KR) would be ₩1. I thought calling getRoundingIncrement() on the DecimalFormat object may give it to me but that returns 0 for both en_US and ko_KR.

Upvotes: 0

Views: 356

Answers (2)

Ternary
Ternary

Reputation: 2411

Thank you to Steve Loomis and Artyom for helping me piece together a solution. 

double roundingIncrement = formatter->getRoundingIncrement();
int32_t minFractionDigits = formatter->getMinimumFractionDigits();
double minDenom;
if (roundingIncrement == 0.0 && minFractionDigits == 0.0)
{
 minDenom = 1.0;
}
else if (roundingIncrement != 0.0 && minFractionDigits > 0.0)
{
 minDenom = roundingIncrement;
}
else
{
 minDenom = 0.01;
}

Upvotes: 0

Artyom
Artyom

Reputation: 31243

You need to take a look on: getMinimumFractionDigits() function:

#include <unicode/numfmt.h>
#include <unicode/ustream.h>
#include <unicode/ustring.h>
#include <iostream>

int main()
{
        UErrorCode e=U_ZERO_ERROR;
        icu::NumberFormat *fmt = icu::NumberFormat::createCurrencyInstance(e);
        std::cout << fmt->getMinimumFractionDigits() << std::endl;
        icu::UnicodeString str;
        std::cout << fmt->format(12345.5678,str) << std::endl;

        delete fmt;
}

This is the output of the program for different locales, seems it is what you need

$ ./a.out
2
$12,345.57
$ LC_ALL=en_US.UTF-8 ./a.out
2
$12,345.57
$ LC_ALL=ja_JP.UTF-8 ./a.out
0
￥12,346
$ LC_ALL=ko_KR.UTF-8 ./a.out
0
￦12,346
$ LC_ALL=ru_RU.UTF-8 ./a.out
2
12 345,57 руб.

Upvotes: 1

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