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Mateusz Pusz 32808bef78 Reinit docs to shrink git repo
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<h1 id="release-notes">Release Notes<a class="headerlink" href="#release-notes" title="Permanent link">&para;</a></h1>
<h2 id="mp-units">mp-units<a class="headerlink" href="#mp-units" title="Permanent link">&para;</a></h2>
<h3 id="2.2.0">2.2.0 <small>June 14, 2024</small><a class="headerlink" href="#2.2.0" title="Permanent link">&para;</a></h3>
<ul>
<li>(!) feat: C++ modules support added by <a href="https://github.com/JohelEGP">@JohelEGP</a></li>
<li>(!) feat: New formatting specification implemented</li>
<li>(!) feat: <code>has_unit_symbol</code> support removed</li>
<li>(!) feat: ABI concerns resolved with introduction of u8 strings for symbols</li>
<li>(!) feat: API-related Conan, CMake, and preprocessor options redesigned</li>
<li>(!) feat: <code>core.h</code> removed</li>
<li>(!) feat: from now on units, dimensions, quantity specifications, and point origins have to be marked as <code>final</code></li>
<li>feat: implicit point origins support added</li>
<li>feat: unit default point origin support added</li>
<li>feat: <code>fma</code>, <code>isfinite</code>, <code>isinf</code>, and <code>isnan</code> math function added by <a href="https://github.com/NAThompson">@NAThompson</a></li>
<li>feat: <code>fma</code> for quantity points added</li>
<li>feat: <code>quantity_point</code> support added for <code>quantity_cast</code> and <code>value_cast</code></li>
<li>feat: <code>value_cast&lt;Unit, Representation&gt;</code> added</li>
<li>feat: <code>value_cast&lt;Quantity&gt;(q)</code>, <code>value_cast&lt;Quantity&gt;(qp)</code> and <code>value_cast&lt;QuantityPoint&gt;(qp)</code> added by <a href="https://github.com/burnpanck">@burnpanck</a></li>
<li>feat: <code>interconvertible(QuantitySpec, QuantitySpec)</code> added</li>
<li>feat: <code>qp.quantity_from_zero()</code> added</li>
<li>feat: <code>value_type</code> type trait added</li>
<li>feat: do not print space between a number and <code>percent</code> or <code>per_mille</code></li>
<li>feat: <code>ppm</code> parts per million added by <a href="https://github.com/nebkat">@nebkat</a></li>
<li>feat: <code>atan2</code> 2-argument arctangent added by <a href="https://github.com/nebkat">@nebkat</a></li>
<li>feat: <code>fmod</code> floating-point division remainder added by <a href="https://github.com/nebkat">@nebkat</a></li>
<li>feat: <code>remainder</code> IEEE division remainder added by <a href="https://github.com/nebkat">@nebkat</a></li>
<li>feat: <code>std::format</code> support added</li>
<li>feat: unit text output support added</li>
<li>feat: formatting error messages improved</li>
<li>feat: improve types readability by eliminating extraneous <code>()</code> in references, prefixes, and <code>kind_of</code></li>
<li>feat: dimension and unit text output added</li>
<li>feat: some light and radiation ISQ quantities added</li>
<li>feat: allow configuring GSL library use</li>
<li>feat: freestanding support added</li>
<li>(!) refactor: <code>zero_Fahrenheit</code> renamed to <code>zeroth_degree_Fahrenheit</code></li>
<li>(!) refactor: SI-related trigonometric functions moved to the <code>si</code> subnamespace</li>
<li>(!) refactor: <code>math.h</code> header file broke up to smaller pieces</li>
<li>(!) refactor: <code>fixed_string</code> interface refactored</li>
<li>(!) refactor: <code>ReferenceOf</code> does not take a dimension anymore</li>
<li>(!) refactor: 'o' replaced with '1' as a modifier for <code>unit_symbol_solidus::one_denominator</code></li>
<li>(!) refactor: <code>get_kind()</code> now returns <code>kind_of</code></li>
<li>(!) refactor: FMT macros moved to <code>compat_macros.h</code></li>
<li>(!) refactor: <code>fixed_string</code> refactored to reflect the latest changes to <a href="https://wg21.link/P3094R2">P3094R2</a></li>
<li>(!) refactor: <code>basic_symbol_text</code> renamed to <code>symbol_text</code></li>
<li>(!) refactor: <code>ratio</code> hidden as an implementation detail behind <code>mag_ratio</code></li>
<li>(!) refactor: <code>framework.h</code> introduced</li>
<li>(!) refactor: type list tools made an implementation detail of the library</li>
<li>(!) refactor: header files with the entire system definitions moved up in the directory tree</li>
<li>(!) refactor: <code>absolute_point_origin</code> does not use CRTP anymore</li>
<li>refactor: system's units do not inherit from one another anymore</li>
<li>refactor: all units made <code>final</code></li>
<li>refactor: math functions constraints refactored</li>
<li>refactor: <code>si_quantities.h</code> added to improve compile-times</li>
<li>refactor: <code>validate_ascii_string</code> refactored to <code>is_basic_literal_character_set</code></li>
<li>refactor: <code>underlying_type</code> split to <code>wrapped_type</code> and <code>value_type</code> and used in code</li>
<li>refactor: code refactored to comply with clang-tidy</li>
<li>refactor: remove dependency on <code>&lt;ranges&gt;</code> header and switch to use an iterator-based <code>copy</code> algorithm</li>
<li>refactor: <code>terminate</code> replaced with <code>abort</code> and a header file added</li>
<li>refactor: most <code>std::remove_const_t</code> removed and some replaced with the GCC-specific workaround</li>
<li>refactor: not needed <code>remove_reference_t</code> and <code>remove_cvref_t</code> removed</li>
<li>fix: <code>QuantityLike</code> conversions required <code>Q::rep</code> instead of using one provided by <code>quantity_like_traits</code></li>
<li>fix: <code>QuantitySpec[Unit]</code> replaced with <code>make_reference</code> in <code>value_cast</code></li>
<li>fix: <code>ice_point</code> is now defined with the integral offset from <code>absolute_zero</code></li>
<li>fix: performance regression in <code>sudo_cast</code> fixed</li>
<li>fix: explicit object parameter support fixed</li>
<li>fix: missing <code>version</code> header file added to <code>hacks.h</code></li>
<li>fix: <code>quantity_cast</code> to accept lvalue references (thanks <a href="https://github.com/burnpanck">@burnpanck</a>)</li>
<li>fix: <code>value_cast</code> with lvalue references to <code>quantity_point</code> (thanks <a href="https://github.com/burnpanck">@burnpanck</a>)</li>
<li>docs: project blog and first posts added</li>
<li>docs: project documentation layout refactored</li>
<li>docs: "Interoperability with Other Libraries" chapter added</li>
<li>docs: "Framework Basics" chapters updated and cleaned up</li>
<li>docs: <code>smoot</code> unit example added to the main page</li>
<li>docs: "Code Example" chapter renamed to "Look and Feel" and reordered in TOC to be after "Quick Start"</li>
<li>docs: "Quick Start" chapter reworked to be simpler and include quantity points</li>
<li>docs: "Quantity points" chapter extended</li>
<li>docs: "The Affine Space" chapter updated to reflect the recent design changes</li>
<li>docs: "Working with Legacy interfaces" chapter added</li>
<li>docs: "Text Output" chapter updated</li>
<li>docs: mkdocs social plugin enabled</li>
<li>docs: project logo and custom color scheme added</li>
<li>docs: minimum compiler requirements updated</li>
<li>docs: unit symbols admonition extended in the "Quick Start" chapter</li>
<li>docs: Cairo dependency described in the MkDocs section</li>
<li>docs: "hello units" example updated with dimensions output</li>
<li>docs: "Text Output" chapter updated with the recent formatting changes</li>
<li>docs: formatting grammar language changed to EBNF</li>
<li>docs: "Project structure" chapter expanded</li>
<li>docs: CITATION.cff updated</li>
<li>(!) build: Conan and CMake options refactored</li>
<li>(!) build: <code>MP_UNITS_AS_SYSTEM_HEADERS</code> renamed to <code>MP_UNITS_BUILD_AS_SYSTEM_HEADERS</code></li>
<li>(!) build: <code>MP_UNITS_BUILD_LA</code> and <code>MP_UNITS_IWYU</code> CMake options now have <code>_DEV_</code> in the name</li>
<li>build: gsl-lite updated to 0.41.0</li>
<li>build: catch2 updated to 3.5.1</li>
<li>build: fmt updated to 10.2.1</li>
<li>build: gitpod environment updated</li>
<li>build: <code>check_cxx_feature_supported</code> added</li>
<li>build: IWYU path handling fixed</li>
<li>build: IWYU enabled on GCC</li>
<li>build: <code>CMAKE_EXPORT_COMPILE_COMMANDS</code> flag enabled for the developer's build</li>
<li>build(conan): <code>generate()</code> now set <code>cache_variables</code></li>
<li>build(conan): <code>can_run</code> check added before running tests</li>
<li>ci: Conan and CMake CI now use different cache names</li>
<li>ci: gcc-14 added</li>
<li>ci: <code>clang-tidy</code> CI added</li>
</ul>
<h3 id="2.1.1">2.1.1 <small>May 16, 2024</small><a class="headerlink" href="#2.1.1" title="Permanent link">&para;</a></h3>
<ul>
<li>fix: unit tests compilation on gcc-14 fixed</li>
<li>fix: explicit <code>this</code> parameter support fixed</li>
</ul>
<h3 id="2.1.0">2.1.0 <small>December 9, 2023</small><a class="headerlink" href="#2.1.0" title="Permanent link">&para;</a></h3>
<ul>
<li>(!) feat: <code>inverse()</code> support added for dimensions, quantity_spec, units, and references
(<code>1 / s</code> will now create <code>quantity</code> and not a <code>Unit</code>)</li>
<li>(!) feat: <code>quantity_point</code> does not provide <code>zero()</code> anymore</li>
<li>(!) feat: <code>quantity_spec</code> and its kind should not compare equal</li>
<li>(!) feat: mutating interface removed from <code>fixed_string</code></li>
<li>(!) feat: <code>common_type</code> with a raw value is not needed anymore as for a long time now raw values are
not convertible to the dimensionless quantities</li>
<li>(!) feat: <code>symbol_text</code> definition simplified</li>
<li>(!) feat: users are now allowed to inherit their own types from absolute point origins</li>
<li>(!) feat: interoperability with other libraries redesigned</li>
<li>feat: <code>basic_fixed_string(const CharT*, std::integral_constant&lt;std::size_t, N&gt;)</code> constructor added</li>
<li>feat: <code>isq::activity</code> added and <code>becquerel</code> definition updated to benefit from it</li>
<li>feat: <code>gray</code> and <code>sievert</code> now have correct associated quantity kinds</li>
<li>feat: <code>UnitCompatibleWith</code> concept added and applied to <code>in(U)</code> and <code>force_in(U)</code> functions</li>
<li>feat: quantities can now be multiplied and divided by units (no parenthesis needed anymore)</li>
<li>feat: <code>Magnitude / Unit</code> operator added</li>
<li>feat: equality for dimensions now will allow derived classes as well (but not from <code>derived_dimension</code>)</li>
<li>feat: <code>zero_Fahrenheit</code> point origin added</li>
<li>feat: equivalent point origins handling improved</li>
<li>feat(example): unit symbols added to the currency example</li>
<li>(!) refactor: <code>unit_symbol&lt;fmt&gt;(U)</code> signature refactored and the resulting text can now also be used at runtime</li>
<li>(!) refactor: <code>make_xxx</code> factory functions replaced with two-parameter constructors</li>
<li>(!) refactor: <code>unit_symbol</code> changed to <code>consteval</code></li>
<li>refactor: <code>in(U)</code> and <code>force_in(U)</code> now return <code>auto</code> to provide better diagnostics on clang</li>
<li>refactor: <code>quantity</code> operators constraints refactored</li>
<li>refactor: more type members added to <code>fixed_string</code> definition</li>
<li>refactor: <code>unit_symbol_formatting</code> enums now use <code>std::int8_t</code> as a representation type</li>
<li>fix: symbols of named dimensionless units with the ratio = 1 were not printed</li>
<li>fix: iterator is now properly updated for all cases in <code>unit_symbol</code></li>
<li>fix: Fahrenheit conversion ratio was inverted</li>
<li>fix: <code>CommonlyInvocableQuantities</code> was overconstrained for the current library design</li>
<li>fix: <code>are_ingredients_convertible</code> now mandates explicit conversion for <code>To</code> dimensionless quantities</li>
<li>fix: <code>quantity_point::point_for(PO)</code> constraints fixed</li>
<li>fix(example): <code>latitude</code> and <code>longitude</code> fixed to include <code>0</code> for <code>N</code> and <code>E</code> respectively</li>
<li>ci: clang-17 enabled</li>
<li>ci: apple-clang-15 enabled</li>
<li>ci: Added C++23 builds to the CI matrix</li>
<li>docs: "Getting Started" chapters updated</li>
<li>docs: "Basic Concepts" and "Interface Introduction" chapters updated</li>
<li>docs: "Design Overview" chapter added and "Concepts" chapter reworked</li>
<li>docs: "Output stream formatting" chapter updated</li>
<li>docs: "Default formatting" chapter updated</li>
<li>docs: "Derived unit symbols generation" chapter added</li>
<li>docs: outdated affine space chapter updated</li>
<li>docs: <code>CameCase</code> concept identifiers FAQ added</li>
<li>docs: <code>gravitational_potential_energy</code> equation fixed on a graph</li>
<li>docs: YouTube video link updated to the C++ on Sea 2023</li>
<li>docs: ISO papers reference added to docs and README</li>
<li>docs: a representation type in a dimensionless quantity FAQ fixed</li>
<li>docs: titles added to some important admonitions</li>
<li>docs: "Terms and Definitions" slightly updated</li>
<li>docs: "canonical unit" added to glossary and its documentation in code was updated</li>
<li>docs: Design overview graph updated</li>
</ul>
<h3 id="2.0.0">2.0.0 <small>September 24, 2023</small><a class="headerlink" href="#2.0.0" title="Permanent link">&para;</a></h3>
<ul>
<li><code>units</code> namespace renamed to <code>mp_units</code> (#317)</li>
<li>header files in the <code>&lt;mp-units/...&gt;</code> rather then in <code>&lt;units/...&gt;</code> (#317)</li>
<li>the downcasting facility is removed (#383, #211, #32)</li>
<li>unified and simplified quantity creation (#274)</li>
<li>determining the best way to create a quantity (#413)</li>
<li>V2 <code>quantity_point</code> (#414)</li>
<li>introduction of <code>quantity_spec</code> to store not only <code>dimension</code> but also additional information about quantities (#405)</li>
<li><code>quantity</code> now takes <code>reference</code> object, which aggregates <code>quantity_spec</code> and a <code>unit</code> and a <code>representation</code> type</li>
<li>units, prefixes, dimensions, quantity specifications, and references are passed as NTTPs to templates and provide arithmetic operations and comparison</li>
<li>expression templates consistently used in all derived types to increase the readability (#351, #166)</li>
<li>derived dimensions are now factors of only base dimensions (#281)</li>
<li>convertibility of derived quantities (#427)</li>
<li>dimensions, quantity specifications, units, and references are now composable, significantly reducing the number of definitions and resulting types</li>
<li>heavily simplified unit systems definitions (no need to define unnamed derived units, systems-specific dimensions, aliases for quantities, concepts, UDLs, ... anymore)</li>
<li>improved definition of all systems</li>
<li>support for ISO 80000 Part 3-6 quantities</li>
<li>faster than lightspeed constants (#169)</li>
<li>extensions to quantity formatting with <code>fmt</code></li>
<li><code>quantity_kind</code> removed</li>
<li>improved casting of unit with <code>.in(Unit)</code>, <code>.force_in(Unit)</code> for <code>quantity</code> and <code>quantity_spec</code></li>
<li>numerical value accessor safety improved with <code>.numerical_value_in(Unit)</code> and <code>.force_numerical_value_in(Unit)</code></li>
<li><code>quantity</code> can no longer be constructed with a raw value (#434)</li>
<li>Implicit construction of quantities from a value (#410)</li>
<li><code>quantity_point</code> can no longer be constructed with just a <code>quantity</code> and an explicit <code>PointOrigin</code> is always needed</li>
<li><code>ceil</code> and <code>floor</code> are dangerous (#432)</li>
<li>quecto, ronto, ronna, quetta new SI prefixes support</li>
<li>comparison against zero added (#487)</li>
<li>documentation rewritten from scratch</li>
<li>many smaller changes not possible to address with the previous design (#205, #210, #134)</li>
</ul>
<h3 id="0.8.0">0.8.0 <small>June 14, 2023</small><a class="headerlink" href="#0.8.0" title="Permanent link">&para;</a></h3>
<ul>
<li>(!) refactor: <code>common_quantity</code>, <code>common_quantity_for</code>, <code>common_quantity_point</code>, <code>common_quantity_kind</code>, and <code>common_quantity_point_kind</code> removed</li>
<li>(!) refactor: <code>named_derived_unit</code> removed as it was not used</li>
<li>(!) refactor: <code>derived_unit</code> renamed to <code>derived_scaled_unit</code></li>
<li>(!) refactor: <code>unit</code> renamed to <code>derived_unit</code></li>
<li>(!) refactor: <code>U::is_named</code> removed from the unit types and replaced with <code>NamedUnit</code> concept</li>
<li>(!) refactor: <code>PrefixFamily</code> support removed</li>
<li>(!) refactor: <code>mi(naut)</code> renamed to <code>nmi</code></li>
<li>(!) refactor: <code>knot</code> unit helper renamed to <code>kn</code> in FPS</li>
<li>(!) refactor: <code>knot</code> text symbol changed from <code>"knot"</code> to <code>"kn"</code></li>
<li>refactor: <code>quantity</code> <code>op+()</code> and <code>op-()</code> reimplemented in terms of <code>reference</code> rather then <code>quantity</code> types</li>
<li>refactor(example): <code>glide_computer</code> now use dimensionless quantities with <code>ranged_representation</code> as <code>rep</code></li>
<li>feat: HEP system support added (thanks <a href="https://github.com/RalphSteinhagen">@RalphSteinhagen</a>)</li>
<li>feat: <code>floor()</code>, <code>ceil()</code>, and <code>round()</code> support added (thanks <a href="https://github.com/hofbi">@hofbi</a>)</li>
<li>feat: <code>std::format</code> support for compliant compilers added</li>
<li>feat: conversion helpers from <code>mp-units</code> to <code>std::chrono</code> types added</li>
<li>feat: math functions can now be safely used with user-defined types</li>
<li>feat: conversion from <code>quantity_point</code> to <code>std::chrono::time_point</code> added</li>
<li>feat: <code>nautical_mile_per_hour</code> and <code>knot</code> added to <code>si::international</code> system</li>
<li>(!) fix: add <code>quantity_point::origin</code>, like <code>std::chrono::time_point::clock</code></li>
<li>fix: enable any prefixes for most of the named units (beside those that use prefixes already)</li>
<li>fix: <code>hectare</code> definition fixed to be a prefixed version of <code>are</code> + other units</li>
<li>fix: account for different dimensions in <code>quantity_point_cast</code>'s constraint</li>
<li>fix: output stream operator now properly handles state</li>
<li>fix: <code>fmt</code> algorithms were overconstrained with <code>forward_iterator</code></li>
<li>fix: CTAD for aliases fixed</li>
<li>fix: <code>derived_ratio</code> calculation</li>
<li>fix: <code>fill_t</code> assignment operator fixed</li>
<li>fix: improve downcast mode off</li>
<li>fix: <code>radioactivity</code> header compilation fixed</li>
<li>fix: <code>si::hep::dim_momentum</code> duplicated definition fixed</li>
<li>fix: <code>fps</code> can now coexist with <code>international</code> system</li>
<li>fix: public headers fixed to be standalone</li>
<li>test: standalone public headers tests added</li>
<li>(!) build: CMake generator in Conan is no longer obtained from an environment variable</li>
<li>(!) build: Required Conan version bumped to 1.48</li>
<li>(!) build: Conan 1.48 does not set <code>CMAKE_BUILD_TYPE</code> in the <code>conan_toolchain.cmake</code> anymore</li>
<li>build: AppleClang 13 support added (thanks <a href="https://github.com/fdischner">@fdischner</a>)</li>
<li>build: most of the <code>conanfile.py</code> refactored to be Conan 2.0 ready</li>
<li>build: <code>validate()</code> replaced with <code>configure()</code> to raise errors during <code>conan install</code> in Conan 1.X</li>
<li>build: minimum Conan version changed to 1.40</li>
<li>build: <code>linear-algebra</code> Conan repo is no needed anymore</li>
<li>build: Gitpod support added</li>
<li>build: clang-format-15 support added</li>
<li>build: export config to local build (#322)</li>
<li>build: fix export name of <code>mp-units-system</code></li>
<li>build: fmt updated to 8.0.1</li>
<li>build: gsl-lite updated to 0.40.0</li>
<li>build: catch2 updated to 2.13.9</li>
<li>build: doxygen updated to 1.9.4</li>
<li>build: linear_algebra/0.7.0 switched to wg21-linear_algebra/0.7.2</li>
<li>ci: VS2022, gcc-11, clang-13, clang-14, and AppleClang 13 support added</li>
<li>ci: pre-commit support added (thanks <a href="https://github.com/hofbi">@hofbi</a>)</li>
<li>docs: Project documentation updated</li>
<li>docs: <code>CITATION.cff</code> file added</li>
<li>docs: <code>CONTRIBUTING.md</code> updated</li>
</ul>
<h3 id="0.7.0">0.7.0 <small>May 11, 2021</small><a class="headerlink" href="#0.7.0" title="Permanent link">&para;</a></h3>
<ul>
<li>(!) refactor: <code>ScalableNumber</code> renamed to <code>Representation</code></li>
<li>(!) refactor: output stream operators moved to the <code>units/quantity_io.h</code> header file</li>
<li>(!) refactor: Refactored the library file tree</li>
<li>(!) refactor: <code>quantity::count()</code> renamed to <code>quantity::number()</code></li>
<li>(!) refactor: <code>data</code> system renamed to <code>isq::iec80000</code> (quantity names renamed too)</li>
<li>(!) refactor: <code>*deduced_unit</code> renamed to <code>*derived_unit</code></li>
<li>(!) refactor: got rid of a <code>noble_derived_unit</code></li>
<li>refactor: quantity (kind) point updated to reflect latest changes to <code>quantity</code></li>
<li>refactor: basic concepts, <code>quantity</code> and <code>quantity_cast</code> refactored</li>
<li>refactor: <code>abs()</code> definition refactored to be more explicit about the return type</li>
<li>feat: quantity (point) kind support added (thanks <a href="https://github.com/johelegp">@johelegp</a>)</li>
<li>feat: quantity references support added (thanks <a href="https://github.com/johelegp">@johelegp</a>)</li>
<li>feat: quantity aliases support addded</li>
<li>feat: interoperability with <code>std::chrono::duration</code> and other units libraries</li>
<li>feat: CTAD for dimensionless quantity added</li>
<li>feat: <code>modulation_rate</code> support added (thanks <a href="https://github.com/go2sh">@go2sh</a>)</li>
<li>feat: SI prefixes for <code>isq::iec80000</code> support added (thanks <a href="https://github.com/go2sh">@go2sh</a>)</li>
<li>feat: a possibility to disable quantity UDLs support with <code>UNITS_NO_LITERALS</code> preprocessor define</li>
<li>feat: a support to define ISQ derived dimensions in terms of different number or order of components</li>
<li>perf: preconditions check do not influence the runtime performance of a Release build</li>
<li>perf: <code>quantity_cast()</code> generates less assembly instructions</li>
<li>perf: temporary string creation removed from <code>quantity::op&lt;&lt;()</code></li>
<li>perf: value initialization for quantity value removed (left with a default initialization)</li>
<li>perf: limited the <code>equivalent</code> trait usage</li>
<li>perf: limited the C++ Standard Library headers usage</li>
<li>perf: rvalue references support added for constructors and getters</li>
<li>(!) fix: <code>exp()</code> has sense only for dimensionless quantities</li>
<li>(!) fix: <code>dim_torque</code> now properly divides by an angle (instead of multiply) + default unit name change</li>
<li>fix: quantity's operators fixed to behave like the underlying types do</li>
<li>fix: <code>quantity_cast()</code> fixed to work correctly with representation types not convertible from <code>std::intmax_t</code></li>
<li>fix: ambiguous case for empty type list resolved</li>
<li>fix: downcasting facility for non-default-constructible types</li>
<li>fix: restore user-warnings within the library implementation</li>
<li>fix: the text symbol of <code>foot_pound_force</code> and <code>foot_pound_force_per_second</code></li>
<li>fix: quantity modulo arithmetics fixed</li>
<li>(!) build: Conan testing version is now hosted on <a href="https://mpusz.jfrog.io/ui/packages/conan:%2F%2Fmp-units">Artifactory</a></li>
<li>(!) build: Linear Algebra is now hosted on its <a href="https://twonington.jfrog.io/artifactory/api/conan/conan-oss">Artifactory</a></li>
<li>(!) build: <code>BUILD_DOCS</code> CMake option renamed to <code>UNITS_BUILD_DOCS</code></li>
<li>build: doxygen updated to 1.8.20</li>
<li>build: catch2 updated to 2.13.4</li>
<li>build: fmt updated to 7.1.3</li>
<li>build: ms-gsl replaced with gsl-lite/0.38.0</li>
<li>build: Conan generator switched to <code>cmake_find_package_multi</code></li>
<li>build: Conan CMakeToolchain support added</li>
<li>build: CMake scripts cleanup</li>
<li>build: ccache support added</li>
<li>ci: CI switched from Travis CI to GitHub Actions</li>
</ul>
<h3 id="0.6.0">0.6.0 <small>September 13, 2020</small><a class="headerlink" href="#0.6.0" title="Permanent link">&para;</a></h3>
<ul>
<li>feat: <code>quantity_point</code> support added (thanks <a href="https://github.com/johelegp">@johelegp</a>)</li>
<li>feat: Added angle as SI base dimension (thanks <a href="https://github.com/kwikius">@kwikius</a>)</li>
<li>feat: <code>si::angular_velocity</code> support added (thanks <a href="https://github.com/mikeford3">@mikeford3</a>)</li>
<li>feat: FPS system added (thanks <a href="https://github.com/mikeford3">@mikeford3</a>)</li>
<li>feat: Added support for mathematical function <code>exp(quantity)</code></li>
<li>feat: Localization support for text output added (thanks <a href="https://github.com/rbrugo">@rbrugo</a>)</li>
<li>feat: Added STL random number distribution wrappers (thanks <a href="https://github.com/yasamoka">@yasamoka</a>)</li>
<li>(!) refactor: Refactored and cleaned up the library file tree</li>
<li>(!) refactor: <code>q_*</code> UDL renamed to <code>_q_*</code></li>
<li>(!) refactor: UDLs with "per" in name renamed from <code>*p*</code> to <code>*_per_*</code></li>
<li>(!) refactor: <code>ratio</code> changed to the NTTP kind</li>
<li>(!) refactor: <code>exp</code> and <code>Exp</code> renamed to <code>exponent</code> and <code>Exponent</code></li>
<li>(!) refactor: <code>Scalar</code> concept renamed to <code>ScalableNumber</code></li>
<li>(!) refactor: Dimensionless quantities redesigned to be of a <code>quantity</code> type</li>
<li>refactor: <code>math.h</code> function signatures refactored to use a <code>Quantity</code> concept (thanks <a href="https://github.com/kwikius">@kwikius</a>)</li>
<li>refactor: <code>[[nodiscard]]</code> added to many functions</li>
<li>fix: <code>si::day</code> unit symbol fixed to <code>d</code> (thanks <a href="https://github.com/komputerwiz">@komputerwiz</a>)</li>
<li>fix: <code>si::mole</code> unit symbol fixed to <code>mol</code> (thanks <a href="https://github.com/mikeford3">@mikeford3</a>)</li>
<li>(!) build: gcc-9 is no longer supported (at least gcc-10 is required)</li>
<li>build: Visual Studio 16.7 support added</li>
<li>build: linear_algebra updated to 0.7.0/stable</li>
<li>build: fmt updated to 7.0.3</li>
<li>build: range-v3 updated to 0.11.0</li>
<li>build: catch2 updated to 2.13.0</li>
<li>build: doxygen updated to 1.8.18</li>
<li>build: ms-gsl 3.1.0 dependency added</li>
<li>build: Removed the dependency on a git submodule with common CMake scripts</li>
</ul>
<h3 id="0.5.0">0.5.0 <small>May 17, 2020</small><a class="headerlink" href="#0.5.0" title="Permanent link">&para;</a></h3>
<ul>
<li>Major refactoring and rewrite of the library</li>
<li>Units are now independent from dimensions</li>
<li>Dimensions now depend on units (base or coherent units are provided in a class template)</li>
<li>Quantity gets a Dimension template parameter again (as unit does not provide information about
its dimension anymore)</li>
<li>Spaceship operator support added</li>
<li>Added official CGS system support</li>
<li>Added official data information system support</li>
<li>Repository file tree cleanup</li>
<li><code>ratio</code> refactored to contain <code>Exp</code> template parameter (thanks a lot <a href="https://github.com/oschonrock">@oschonrock</a>!)</li>
<li>SI fundamental constants added</li>
<li><code>q_</code> prefix applied to all the UDLs (thanks <a href="https://github.com/kwikius">@kwikius</a>)</li>
<li><code>unknown_unit</code> renamed to <code>unknown_coherent_unit</code></li>
<li>Project documentation greatly extended and switched to Sphinx</li>
<li>A few more usage examples added</li>
<li>ASCII-only output support added (thanks <a href="https://github.com/yasamoka">@yasamoka</a>)</li>
<li>Representation values formatting extended (thanks <a href="https://github.com/rbrugo">@rbrugo</a>)</li>
<li>Output streams formatting support added</li>
<li>Linear algebra from <code>std::experimental::math</code> support added</li>
<li>Named SI units and their dimensions added (thanks <a href="https://github.com/rbrugo">@rbrugo</a></li>
<li>libfmt updated to 6.2.0</li>
<li>Added absolute functions and epsilon to math.h (thanks <a href="https://github.com/mikeford3">@mikeford3</a>)</li>
<li>Added a lot of prefixes to named units and introduced <code>alias_unit</code> (thanks <a href="https://github.com/yasamoka">@yasamoka</a>)</li>
<li>Linking with Conan targets only when they exists (<a href="https://github.com/mpusz/units/issues/98">#98</a>)</li>
<li>All physical dimensions and units put into <code>physical</code> namespace</li>
<li>CMake improvements</li>
<li>Velocity renamed to speed</li>
</ul>
<p>Many thanks to GitHub users <a href="https://github.com/oschonrock">@oschonrock</a>,
<a href="https://github.com/kwikius">@kwikius</a>, and <a href="https://github.com/i-ky">@i-ky</a> for their support
in drafting a new library design.</p>
<h3 id="0.4.0">0.4.0 <small>Nov 17, 2019</small><a class="headerlink" href="#0.4.0" title="Permanent link">&para;</a></h3>
<ul>
<li>Support for derived dimensions in <code>exp</code> added</li>
<li>Added <code>pow()</code> and <code>sqrt()</code> operations on quantities</li>
<li><code>units</code> removed from a <code>std::experimental</code> namespace</li>
<li>Downcasting facility refactored so the user does not have to write the boilerplate code anymore</li>
<li>From now on base dimensions should inherit from <code>base_dimension</code> class template</li>
<li>Added unit symbols definitions to <code>base_dimension</code> and derived units</li>
<li>Added support for <code>operator&lt;&lt;</code> on <code>quantity</code></li>
<li><code>fmt</code> support added</li>
<li>Derived unit factory helpers refactored</li>
<li>Refactored the way prefixed units are defined</li>
</ul>
<h3 id="0.3.1">0.3.1 <small>Sep 18, 2019</small><a class="headerlink" href="#0.3.1" title="Permanent link">&para;</a></h3>
<ul>
<li>cmcstl2 dependency changed to range-v3 0.9.1</li>
</ul>
<h3 id="0.3.0">0.3.0 <small>Sep 16, 2019</small><a class="headerlink" href="#0.3.0" title="Permanent link">&para;</a></h3>
<ul>
<li>The design as described on CppCon 2019 talk (<a href="https://youtu.be/0YW6yxkdhlU">https://youtu.be/0YW6yxkdhlU</a>)</li>
<li>Applied the feedback from the Cologne evening session</li>
<li><code>upcasting_traits</code> renamed to <code>downcasting_traits</code></li>
<li><code>Dimension</code> template parameter removed from quantity</li>
<li><code>units</code> moved to a <code>std::experimental</code> namespace</li>
<li>Leading underscore prefix removed from UDLs</li>
<li>Added a few more derived dimensions</li>
<li><code>meter</code> renamed to <code>metre</code></li>
<li>Missing <code>operator*</code> added</li>
<li>Predefined dimensions moved to a dedicated directory</li>
<li><code>dimension_</code> prefix removed from names of derived dimensions</li>
<li>cmcstl2 library updated to 2019.09.19</li>
<li><code>base_dimension</code> is a value provided as <code>const&amp;</code> to the <code>exp</code> type</li>
<li>integrated with Compiler Explorer</li>
<li>gsl-lite dependency removed</li>
<li>Fractional dimension exponents support added</li>
<li><code>QuantityOf</code> concept introduced</li>
<li><code>quantity_cast&lt;U, Rep&gt;()</code> support added</li>
</ul>
<h3 id="0.2.0">0.2.0 <small>July 18, 2019</small><a class="headerlink" href="#0.2.0" title="Permanent link">&para;</a></h3>
<ul>
<li>The design as described on C++Now 2019 talk (<a href="https://youtu.be/wKchCktZPHU">https://youtu.be/wKchCktZPHU</a>)</li>
<li>Added C++20 features supported by gcc-9.1 (<code>std::remove_cvref_t</code>, down with typename, <code>std::type_identity</code>)</li>
<li>Compile-time performance optimizations (<code>type_list</code>, <code>common_ratio</code>, <code>ratio</code>, <code>conditional_t</code>)</li>
</ul>
<h3 id="0.1.0">0.1.0 <small>May 18, 2019</small><a class="headerlink" href="#0.1.0" title="Permanent link">&para;</a></h3>
<ul>
<li>Initial library release</li>
<li>Begin semantic versioning</li>
<li>The last version to work with gcc-8</li>
</ul>
</article>
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