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8.4 KiB
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35 lines
8.4 KiB
HTML
<html><head><meta http-equiv="X-UA-Compatible" content="IE=edge" /><link rel="shortcut icon" href="../icons/favicon.ico" /><link rel="stylesheet" type="text/css" href="../styles/branding.css" /><link rel="stylesheet" type="text/css" href="../styles/branding-en-US.css" /><script type="text/javascript" src="../scripts/branding.js"> </script><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Welcome to the GMP Native Interface for .NET Library</title><meta name="Language" content="en-us" /><meta name="System.Keywords" content="Welcome" /><meta name="Microsoft.Help.Id" content="846f5c8a-6cba-433e-9f18-cde2ff5695cd" /><meta name="Description" content="The GMP Native Interface for .NET Library exposes to .NET (through P-Invoke and .NET types) all of the functionality of the GNU MP Libraryhttps://gmplib.org/ (version 6.1.2)." /><meta name="Microsoft.Help.ContentType" content="Concepts" /><meta name="BrandingAware" content="true" /><link rel="stylesheet" type="text/css" href="../styles/branding-Website.css" /><script type="text/javascript" src="../scripts/jquery-1.11.0.min.js"></script><script type="text/javascript" src="../scripts/branding-Website.js"></script><script type="text/javascript" src="../scripts/clipboard.min.js"></script></head><body onload="OnLoad('cs')"><input type="hidden" id="userDataCache" class="userDataStyle" /><div class="pageHeader" id="PageHeader">GMP Native Interface for .NET<form id="SearchForm" method="get" action="#" onsubmit="javascript:TransferToSearchPage(); return false;"><input id="SearchTextBox" type="text" maxlength="200" /><button id="SearchButton" type="submit"></button></form></div><div class="pageBody"><div class="leftNav" id="leftNav"><div id="tocNav"><div class="toclevel0" data-toclevel="0" data-childrenloaded="true"><a class="tocExpanded" onclick="javascript: Toggle(this);" href="#!" /><a data-tochassubtree="true" href="846f5c8a-6cba-433e-9f18-cde2ff5695cd.htm" title="GMP Native Interface for .NET" tocid="roottoc">GMP Native Interface for .NET</a></div><div class="toclevel1 current" data-toclevel="1"><a data-tochassubtree="false" href="846f5c8a-6cba-433e-9f18-cde2ff5695cd.htm" title="Welcome to the GMP Native Interface for .NET Library" tocid="846f5c8a-6cba-433e-9f18-cde2ff5695cd">Welcome to the GMP Native Interface for .NET Library</a></div><div class="toclevel1" data-toclevel="1"><a class="tocCollapsed" onclick="javascript: Toggle(this);" href="#!" /><a data-tochassubtree="true" href="d9c51b9f-0c54-770b-28ea-6eebd8fef368.htm" title="Math.Gmp.Native" tocid="d9c51b9f-0c54-770b-28ea-6eebd8fef368">Math.Gmp.Native</a></div></div><div id="tocResizableEW" onmousedown="OnMouseDown(event);"></div><div id="TocResize" class="tocResize"><img id="ResizeImageIncrease" src="../icons/TocOpen.gif" onclick="OnIncreaseToc()" alt="Click or drag to resize" title="Click or drag to resize" /><img id="ResizeImageReset" src="../icons/TocClose.gif" style="display:none" onclick="OnResetToc()" alt="Click or drag to resize" title="Click or drag to resize" /></div></div><div class="topicContent" id="TopicContent"><table class="titleTable"><tr><td class="titleColumn">Welcome to the GMP Native Interface for .NET Library</td></tr></table><span class="introStyle"></span> <div class="introduction"><p>
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The <strong>GMP Native Interface for .NET Library</strong> exposes to .NET (through P-Invoke and .NET types)
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all of the functionality of the
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<a href="https://gmplib.org/" target="_blank">GNU MP Library</a>
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(version 6.1.2). It automatically loads at runtime the 32-bit or 64-bit GNU MP library that matches the current CPU
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architecture, thus allowing building Visual Studio Projects for AnyCPU, x86, or x64.
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It is based on the GNU MP "fat" build which automatically detects the current CPU type, and selects any available
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assembly language code optimization for that CPU, thus providing optimal performance.
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</p></div><div class="collapsibleAreaRegion"><span class="collapsibleRegionTitle" onclick="SectionExpandCollapse('ID0RB')" onkeypress="SectionExpandCollapse_CheckKey('ID0RB', event)" tabindex="0"><img id="ID0RBToggle" class="collapseToggle" src="../icons/SectionExpanded.png" />Overview</span></div><div id="ID0RBSection" class="collapsibleSection"><p>
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The <a href="3af6b34c-3242-2b75-e7c7-ab79af8a4b0f.htm">gmp_lib</a> class has a static
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method for each one of the GNU MP functions.
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Other types are defined to mimic struct's and typedef's of the GNU MP and C libraries, as well as C language
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constructs such as <span class="code">char *</span> and <span class="code">void *</span>.
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</p><p>
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The GMP Native Interface for .NET Library relies on pre-built 32-bit and 64-bit versions of the GNU MP Library.
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Instructions for building the GNU MP Library on Windows are given below.
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</p><p>
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For convenience, this help file has been created from the GNU MP manual version 6.1.2. It shows with examples
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how each GNU MP function is called in .NET. For an introduction to GNU MP, refer to the
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<a href="https://gmplib.org/manual/" target="_blank">GNU MP Manual</a>.
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</p></div><div class="collapsibleAreaRegion"><span class="collapsibleRegionTitle" onclick="SectionExpandCollapse('ID1RB')" onkeypress="SectionExpandCollapse_CheckKey('ID1RB', event)" tabindex="0"><img id="ID1RBToggle" class="collapseToggle" src="../icons/SectionExpanded.png" />C and .NET Types Equivalence</span></div><div id="ID1RBSection" class="collapsibleSection"><p>
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The table below shows how each C type maps to .NET.
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Note that the <a href="bf1f694d-f9b2-6413-12e5-ebae603d5b49.htm">mp_limb_t</a>
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and <a href="d9761bfb-1882-59d2-e89b-c6460141f9a6.htm">size_t</a> C types map
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to the CPU word, i.e., 32 or 64 bits.
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In particular, because <a href="bf1f694d-f9b2-6413-12e5-ebae603d5b49.htm">mp_limb_t</a>
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is the type of the integers that make up multi-precision numbers, matching the CPU word size ensures
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maximum performance.
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Unless you intend to use low-level (mpn) functions, you do not need to take into account the
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CPU word size, and can build for the "Any CPU" platform.
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</p><div class="tableSection"><table><tr><th><p>C Types</p></th><th><p>.NET Types</p></th></tr><tr><td><p>short</p></td><td><p>Int16</p></td></tr><tr><td><p>int</p></td><td><p>Int32</p></td></tr><tr><td><p>long</p></td><td><p>Int32</p></td></tr><tr><td><p>long long</p></td><td><p>Int64</p></td></tr><tr><td><p><a href="1b2b1d64-20c1-7a64-0278-d9ff58ee9cc3.htm">mp_bitcnt_t</a></p></td><td><p>UInt32</p></td></tr><tr><td><p><a href="e6a17880-791f-37d4-4942-cf26ce7d4cbf.htm">mp_exp_t</a></p></td><td><p>Int32</p></td></tr><tr><td><p><a href="4b58a584-7a0e-b600-18fa-ebd493861eb3.htm">mp_size_t</a></p></td><td><p>Int32</p></td></tr><tr><td><p><a href="bf1f694d-f9b2-6413-12e5-ebae603d5b49.htm">mp_limb_t</a></p></td><td><p>UInt32 (on 32-bit CPU) / UInt64 (on 64-bit CPU)</p></td></tr><tr><td><p><a href="d9761bfb-1882-59d2-e89b-c6460141f9a6.htm">size_t</a></p></td><td><p>UInt32 (on 32-bit CPU) / UInt64 (on 64-bit CPU)</p></td></tr></table></div></div><div class="collapsibleAreaRegion"><span class="collapsibleRegionTitle" onclick="SectionExpandCollapse('ID2RB')" onkeypress="SectionExpandCollapse_CheckKey('ID2RB', event)" tabindex="0"><img id="ID2RBToggle" class="collapseToggle" src="../icons/SectionExpanded.png" />Building the GNU MP Library on Windows</span></div><div id="ID2RBSection" class="collapsibleSection"><ol><li><p>
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Install MSYS2
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</p><p>
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Get the latest version from...
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</p></li><li><p>Install yasm</p></li><li><p>Install GNU MP</p></li><li><p>Build GNU MP</p></li></ol></div><div class="collapsibleAreaRegion" id="seeAlsoSection"><span class="collapsibleRegionTitle" onclick="SectionExpandCollapse('ID3RB')" onkeypress="SectionExpandCollapse_CheckKey('ID3RB', event)" tabindex="0"><img id="ID3RBToggle" class="collapseToggle" src="../icons/SectionExpanded.png" />See Also</span></div><div id="ID3RBSection" class="collapsibleSection"><h4 class="subHeading">Other Resources</h4><div class="seeAlsoStyle"><a href="http://en.cppreference.com/w/c/numeric/math" target="_self">C Standard</a></div><div class="seeAlsoStyle"><a href="https://github.com/MachineCognitis/Math.Gmp.Native" target="_self">Math.Gmp.Native on GitHub</a></div></div></div></div><div id="pageFooter" class="pageFooter" /></body></html> |