calculator/src/CalcManager/NumberFormattingUtils.h
Rudy Huyn 2ff7bb4089 Unit Converter - Calculate the rounding precision of results based on the source (#498)
* precisely calculates the number of digits of the source and compute the number of significant digits of the result based on that.

* fix unit test

* Fix warning C4267

* Optimize how we calculate the number of digits in the integer part and don't trim the value when used by the currency converter

* modify GetNumberSignificantDigits

* fix CI error

* Access to wstring::npos from static calls

* Move UnitConverter static methods related to number to NumberFormattingUtils

* rename namespace

* Add comment and fix typo

* Move standard headers
2019-07-16 17:00:57 -07:00

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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
#pragma once
#include <string>
namespace CalcManager::NumberFormattingUtils
{
void TrimTrailingZeros(_Inout_ std::wstring& input);
unsigned int GetNumberDigits(std::wstring value);
unsigned int GetNumberDigitsWholeNumberPart(double value);
std::wstring RoundSignificantDigits(double value, int numberSignificantDigits);
std::wstring ToScientificNumber(double number);
}