Re: [Boost-users] Boost.Units: Is it possible to convert on assignment without casting?

AMDG On 1/14/19 1:50 AM, Carel Combrink via Boost-users wrote:

I have two unit quantities defined as follow: static const auto Hz = boost::units::si::hertz; static const auto KHz = boost::units::si::kilo * Hz; using Hertz = boost::units::quantity; using Kilohertz = boost::units::quantity;

Assigning one type to another does not compile: Kilohertz freqKhz = Kilohertz::from_value( 1.234 ); Hertz freqHz = freqKhz;

This is not assignment. It uses the copy constructor and requires an implicit conversion (which is forbidden by design). Try direct construction, instead: Hertz freqHz{freqKhz};

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error: conversion from 'Kilohertz {aka boost::units::quantity<...>, double>}' to non-scalar type 'Hertz {aka boost::units::quantity<...>, double>}' requested [1]

Is this possible, should it be enabled or is it not supported? I am using boost 01.67, Mingw 5.3 and MSVC 2017 (C++14) <snip>

In Christ, Steven Watanabe