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< 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 > gmp_lib.mpz_inp_str Method < / title > < meta name = "Language" content = "en-us" / > < meta name = "System.Keywords" content = "mpz_inp_str method" / > < meta name = "System.Keywords" content = "gmp_lib.mpz_inp_str method" / > < meta name = "Microsoft.Help.F1" content = "Math.Gmp.Native.gmp_lib.mpz_inp_str" / > < meta name = "Microsoft.Help.Id" content = "M:Math.Gmp.Native.gmp_lib.mpz_inp_str(Math.Gmp.Native.mpz_t,Math.Gmp.Native.ptr{Math.Gmp.Native.FILE},System.Int32)" / > < meta name = "Description" content = "Input a possibly white-space preceded string in base from stdio stream , and put the read integer in ." / > < meta name = "Microsoft.Help.ContentType" content = "Reference" / > < meta name = "BrandingAware" content = "true" / > < meta name = "container" content = "Math.Gmp.Native" / > < meta name = "file" content = "8b8d6ec1-3ae5-e6f3-f030-289abe5002d0" / > < meta name = "guid" content = "8b8d6ec1-3ae5-e6f3-f030-289abe5002d0" / > < link type = "text/css" rel = "stylesheet" href = "../styles/highlight.css" / > < script type = "text/javascript" src = "../scripts/highlight.js" > < / script > < 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" > < a class = "tocCollapsed" 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 = "toclevel0" data-toclevel = "0" > < 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 class = "toclevel0" data-toclevel = "0" > < a class = "tocCollapsed" onclick = "javascript: Toggle(this);" href = "#!" / > < a data-tochassubtree = "true" href = "3af6b34c-3242-2b75-e7c7-ab79af8a4b0f.htm" title = "gmp_lib Class" tocid = "3af6b34c-3242-2b75-e7c7-ab79af8a4b0f" > gmp_lib Class< / a > < / div > < div class = "toclevel1" data-toclevel = "1" data-childrenloaded = "true" > < a class = "tocExpanded" onclick = "javascript: Toggle(this);" href = "#!" / > < a data-tochassubtree = "true" href = "0fa7cbf3-e8f4-6b14-d829-8aa663e77c74.htm" title = "gmp_lib Methods" tocid = "0fa7cbf3-e8f4-6b14-d829-8aa663e77c74" > gmp_lib Methods< / a > < / div > < div class = "toclevel2" data-toclevel = "2" > < a data-tochassubtree = "false" href = "c9cb6a67-59b8-5c03-f31d-f252441c53f6.htm" title = "_mpz_realloc Method " tocid = "c9cb6a67-59b8-5c03-f31d-f252441c53f6" > _mpz_realloc Method < / a > < / div > < div class = "toclevel2" data-toclevel = "2" > < a data-tochassubtree = "false" href = "2c68671c-cd5c-e2ec-52a2-65b0ca31c3d1.htm" title = "allocate Method " tocid = "2c68671c-cd5c-e2ec-52a2-65b0ca31c3d1" > allocate Method < / a > < / div > < div class = "toclevel2" data-toclevel = "2" > < a class = "tocCollapsed" onclick = "javascript: Toggle(this);" href = "#!" / > < a data-tochassubtree = "true" href = "92160da3-b1af-e005-cb05-e3fb4dd524d8.htm" title = "free Method " tocid = "92160da3-b1af-e005-cb05-e3fb4dd524d8" > free Method < / a > < / div > < div class = "to
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Input a possibly white-space preceded string in base < span class = "parameter" > base< / span > from stdio stream < span class = "parameter" > stream< / span > , and put the read integer in < span class = "parameter" > rop< / span > .
< / div > < p > < / p >
< strong > Namespace:< / strong >
< a href = "d9c51b9f-0c54-770b-28ea-6eebd8fef368.htm" > Math.Gmp.Native< / a > < br / >
< strong > Assembly:< / strong >
Math.Gmp.Native (in Math.Gmp.Native.dll) Version: 1.0.0.0 (1.0.0.0)< 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" / > Syntax< / span > < / div > < div id = "ID1RBSection" class = "collapsibleSection" > < div class = "codeSnippetContainer" > < div class = "codeSnippetContainerTabs" > < div id = "ID0EDCA_tab1" class = "codeSnippetContainerTab" > < a href = "#" onclick = "javascript:ChangeTab('ID0EDCA','cs','1','4');return false;" > C#< / a > < / div > < div id = "ID0EDCA_tab2" class = "codeSnippetContainerTab" > < a href = "#" onclick = "javascript:ChangeTab('ID0EDCA','vb','2','4');return false;" > VB< / a > < / div > < div id = "ID0EDCA_tab3" class = "codeSnippetContainerTab" > < a href = "#" onclick = "javascript:ChangeTab('ID0EDCA','cpp','3','4');return false;" > C++< / a > < / div > < div id = "ID0EDCA_tab4" class = "codeSnippetContainerTab" > < a href = "#" onclick = "javascript:ChangeTab('ID0EDCA','fs','4','4');return false;" > F#< / a > < / div > < / div > < div class = "codeSnippetContainerCodeContainer" > < div class = "codeSnippetToolBar" > < div class = "codeSnippetToolBarText" > < a id = "ID0EDCA_copyCode" href = "#" class = "copyCodeSnippet" onclick = "javascript:CopyToClipboard('ID0EDCA');return false;" title = "Copy" > Copy< / a > < / div > < / div > < div id = "ID0EDCA_code_Div1" class = "codeSnippetContainerCode" style = "display: block" > < pre xml:space = "preserve" > < span class = "keyword" > public< / span > < span class = "keyword" > static< / span > < span class = "identifier" > size_t< / span > < span class = "identifier" > mpz_inp_str< / span > (
< span class = "identifier" > mpz_t< / span > < span class = "parameter" > rop< / span > ,
< span class = "identifier" > ptr< / span > < < span class = "identifier" > FILE< / span > > < span class = "parameter" > stream< / span > ,
< span class = "identifier" > int< / span > < span class = "parameter" > base< / span >
)< / pre > < / div > < div id = "ID0EDCA_code_Div2" class = "codeSnippetContainerCode" style = "display: none" > < pre xml:space = "preserve" > < span class = "keyword" > Public< / span > < span class = "keyword" > Shared< / span > < span class = "keyword" > Function< / span > < span class = "identifier" > mpz_inp_str< / span > (
< span class = "parameter" > rop< / span > < span class = "keyword" > As< / span > < span class = "identifier" > mpz_t< / span > ,
< span class = "parameter" > stream< / span > < span class = "keyword" > As< / span > < span class = "identifier" > ptr< / span > (< span class = "keyword" > Of< / span > < span class = "identifier" > FILE< / span > ),
< span class = "parameter" > base< / span > < span class = "keyword" > As< / span > < span class = "identifier" > Integer< / span >
) < span class = "keyword" > As< / span > < span class = "identifier" > size_t< / span > < / pre > < / div > < div id = "ID0EDCA_code_Div3" class = "codeSnippetContainerCode" style = "display: none" > < pre xml:space = "preserve" > < span class = "keyword" > public< / span > :
< span class = "keyword" > static< / span > < span class = "identifier" > size_t< / span > < span class = "identifier" > mpz_inp_str< / span > (
< span class = "identifier" > mpz_t< / span > ^ < span class = "parameter" > rop< / span > ,
< span class = "identifier" > ptr< / span > < < span class = "identifier" > FILE< / span > > ^ < span class = "parameter" > stream< / span > ,
< span class = "identifier" > int< / span > < span class = "parameter" > base< / span >
)< / pre > < / div > < div id = "ID0EDCA_code_Div4" class = "codeSnippetContainerCode" style = "display: none" > < pre xml:space = "preserve" > < span class = "keyword" > static< / span > < span class = "keyword" > member< / span > < span class = "identifier" > mpz_inp_str< / span > :
< span class = "parameter" > rop< / span > : < span class = "identifier" > mpz_t< / span > *
< span class = "parameter" > stream< / span > : < span class = "identifier" > ptr< / span > < < span class = "identifier" > FILE< / span > > *
< span class = "parameter" > base< / span > : < span class = "identifier" > int< / span > < span class = "keyword" > -> < / span > < span class = "identifier" > size_t< / span >
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< / pre > < / div > < / div > < / div > < script type = "text/javascript" > AddLanguageTabSet ( "ID0EDCA" ) ; < / script > < h4 class = "subHeading" > Parameters< / h4 > < dl > < dt > < span class = "parameter" > rop< / span > < / dt > < dd > Type: < a href = "8beda7fb-bbc4-b56f-fd1f-1459377ecb3b.htm" > Math.Gmp.Native< span id = "LST6446603D_1" > < / span > < script type = "text/javascript" > AddLanguageSpecificTextSet ( "LST6446603D_1?cs=.|vb=.|cpp=::|nu=.|fs=." ) ; < / script > mpz_t< / a > < br / > The result integer.< / dd > < dt > < span class = "parameter" > stream< / span > < / dt > < dd > Type: < a href = "542faa00-d28a-72a2-2dd8-6c6021e683ce.htm" > Math.Gmp.Native< span id = "LST6446603D_2" > < / span > < script type = "text/javascript" > AddLanguageSpecificTextSet ( "LST6446603D_2?cs=.|vb=.|cpp=::|nu=.|fs=." ) ; < / script > ptr< / a > < span id = "LST6446603D_3" > < / span > < script type = "text/javascript" > AddLanguageSpecificTextSet ( "LST6446603D_3?cs=<|vb=(Of |cpp=<|fs=<'|nu=(" ) ; < / script > < a href = "1bcc07bd-8fee-1107-844c-a5ff10e7660c.htm" > FILE< / a > < span id = "LST6446603D_4" > < / span > < script type = "text/javascript" > AddLanguageSpecificTextSet ( "LST6446603D_4?cs=>|vb=)|cpp=>|fs=>|nu=)" ) ; < / script > < br / > Pointer to file stream.< / dd > < dt > < span class = "parameter" > base< / span > < / dt > < dd > Type: < a href = "http://msdn2.microsoft.com/en-us/library/td2s409d" target = "_blank" > System< span id = "LST6446603D_5" > < / span > < script type = "text/javascript" > AddLanguageSpecificTextSet ( "LST6446603D_5?cs=.|vb=.|cpp=::|nu=.|fs=." ) ; < / script > Int32< / a > < br / > The base operand.< / dd > < / dl > < h4 class = "subHeading" > Return Value< / h4 > Type: < a href = "d9761bfb-1882-59d2-e89b-c6460141f9a6.htm" > size_t< / a > < br / > Return the number of bytes read, or if an error occurred, return 0.< / 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" / > Remarks< / span > < / div > < div id = "ID2RBSection" class = "collapsibleSection" > < p >
The < span class = "parameter" > base< / span > may vary from 2 to 62, or if base is 0,
then the leading characters are used: 0x and 0X for hexadecimal,
0b and 0B for binary, 0 for octal, or decimal otherwise.
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< / p > < p >
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For bases up to 36, case is ignored; upper-case and lower-case letters have the same value.
For bases 37 to 62, upper-case letter represent the usual 10..35 while
lower-case letter represent 36..61.
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< / p > < / div > < div class = "collapsibleAreaRegion" > < span class = "collapsibleRegionTitle" onclick = "SectionExpandCollapse('ID3RB')" onkeypress = "SectionExpandCollapse_CheckKey('ID3RB', event)" tabindex = "0" > < img id = "ID3RBToggle" class = "collapseToggle" src = "../icons/SectionExpanded.png" / > Examples< / span > < / div > < div id = "ID3RBSection" class = "collapsibleSection" > < div class = "codeSnippetContainer" > < div class = "codeSnippetContainerTabs" > < div id = "ID0EDAABA_tab1" class = "codeSnippetContainerTab" > < a href = "#" onclick = "javascript:ChangeTab('ID0EDAABA','cs','1','4');return false;" > C#< / a > < / div > < div id = "ID0EDAABA_tab2" class = "codeSnippetContainerTab" > < a href = "#" onclick = "javascript:ChangeTab('ID0EDAABA','vb','2','4');return false;" > VB< / a > < / div > < div id = "ID0EDAABA_tab3" class = "codeSnippetContainerTabPhantom" > < a href = "#" onclick = "javascript:ChangeTab('ID0EDAABA','cpp','3','4');return false;" > C++< / a > < / div > < div id = "ID0EDAABA_tab4" class = "codeSnippetContainerTabPhantom" > < a href = "#" onclick = "javascript:ChangeTab('ID0EDAABA','fs','4','4');return false;" > F#< / a > < / div > < / div > < div class = "codeSnippetContainerCodeContainer" > < div class = "codeSnippetToolBar" > < div class = "codeSnippetToolBarText" > < a id = "ID0EDAABA_copyCode" href = "#" class = "copyCodeSnippet" onclick = "javascript:CopyToClipboard('ID0EDAABA');return false;" title = "Copy" > Copy< / a > < / div > < / div > < div id = "ID0EDAABA_code_Div1" class = "codeSnippetContainerCode" style = "display: block" > < pre xml:space = "preserve" > < span class = "highlight-comment" > // Create and initialize op.< / span >
mpz_t op = < span class = "highlight-keyword" > new< / span > mpz_t();
gmp_lib.mpz_init(op);
< span class = "highlight-comment" > // Write op to a temporary file.< / span >
< span class = "highlight-keyword" > string< / span > pathname = System.IO.Path.GetTempFileName();
System.IO.File.WriteAllText(pathname, < span class = "highlight-literal" > "123456"< / span > );
< span class = "highlight-comment" > // Read op from the temporary file, and assert that the number of bytes read is 6.< / span >
ptr< FILE> stream = < span class = "highlight-keyword" > new< / span > ptr< FILE> ();
_wfopen_s(< span class = "highlight-keyword" > out< / span > stream.Value.Value, pathname, < span class = "highlight-literal" > "r"< / span > );
Assert.IsTrue(gmp_lib.mpz_inp_str(op, stream, < span class = "highlight-number" > 10< / span > ) == < span class = "highlight-number" > 6< / span > );
fclose(stream.Value.Value);
< span class = "highlight-comment" > // Assert that op is 123456.< / span >
Assert.IsTrue(gmp_lib.mpz_get_ui(op) == < span class = "highlight-number" > 123456< / span > U);
< span class = "highlight-comment" > // Delete temporary file.< / span >
System.IO.File.Delete(pathname);
< span class = "highlight-comment" > // Release unmanaged memory allocated for op.< / span >
gmp_lib.mpz_clear(op);< / pre > < / div > < div id = "ID0EDAABA_code_Div2" class = "codeSnippetContainerCode" style = "display: none" > < pre xml:space = "preserve" > < span class = "highlight-comment" > ' Create and initialize op.< / span >
< span class = "highlight-keyword" > Dim< / span > op < span class = "highlight-keyword" > As< / span > < span class = "highlight-keyword" > New< / span > mpz_t()
gmp_lib.mpz_init(op)
< span class = "highlight-comment" > ' Write op to a temporary file.< / span >
< span class = "highlight-keyword" > Dim< / span > pathname < span class = "highlight-keyword" > As< / span > < span class = "highlight-keyword" > String< / span > = System.IO.Path.GetTempFileName()
System.IO.File.WriteAllText(pathname, < span class = "highlight-literal" > "123456"< / span > )
< span class = "highlight-comment" > ' Read op from the temporary file, and assert that the number of bytes read is 6.< / span >
< span class = "highlight-keyword" > Dim< / span > stream < span class = "highlight-keyword" > As< / span > < span class = "highlight-keyword" > New< / span > ptr(< span class = "highlight-keyword" > Of< / span > FILE)()
_wfopen_s(stream.Value.Value, pathname, < span class = "highlight-literal" > "r"< / span > )
Assert.IsTrue(gmp_lib.mpz_inp_str(op, stream, < span class = "highlight-number" > 10< / span > ) = < span class = "highlight-number" > 6< / span > )
fclose(stream.Value.Value)
< span class = "highlight-comment" > ' Assert that op is 123456.< / span >
Assert.IsTrue(gmp_lib.mpz_get_ui(op) = < span class = "highlight-number" > 123456< / span > UI)
< span class = "highlight-comment" > ' Delete temporary file.< / span >
System.IO.File.Delete(pathname)
< span class = "highlight-comment" > ' Release unmanaged memory allocated for op.< / span >
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gmp_lib.mpz_clear(op)< / pre > < / div > < div id = "ID0EDAABA_code_Div3" class = "codeSnippetContainerCode" style = "display: none" > < p > No code example is currently available or this language may not be supported.< / p > < / div > < div id = "ID0EDAABA_code_Div4" class = "codeSnippetContainerCode" style = "display: none" > < p > No code example is currently available or this language may not be supported.< / p > < / div > < / div > < / div > < script type = "text/javascript" > AddLanguageTabSet ( "ID0EDAABA" ) ; < / script > < / div > < div class = "collapsibleAreaRegion" id = "seeAlsoSection" > < span class = "collapsibleRegionTitle" onclick = "SectionExpandCollapse('ID4RB')" onkeypress = "SectionExpandCollapse_CheckKey('ID4RB', event)" tabindex = "0" > < img id = "ID4RBToggle" class = "collapseToggle" src = "../icons/SectionExpanded.png" / > See Also< / span > < / div > < div id = "ID4RBSection" class = "collapsibleSection" > < h4 class = "subHeading" > Reference< / h4 > < div class = "seeAlsoStyle" > < a href = "3af6b34c-3242-2b75-e7c7-ab79af8a4b0f.htm" > gmp_lib Class< / a > < / div > < div class = "seeAlsoStyle" > < a href = "d9c51b9f-0c54-770b-28ea-6eebd8fef368.htm" > Math.Gmp.Native Namespace< / a > < / div > < div class = "seeAlsoStyle" > < a href = "6f85986d-b6a0-435d-3675-c025ef70413d.htm" > mpz_out_str< / a > < / div > < div class = "seeAlsoStyle" > < a href = "053b54b6-f646-f0aa-ddaf-00c494a6d5ef.htm" > mpz_out_raw< / a > < / div > < div class = "seeAlsoStyle" > < a href = "44097b06-123a-4c00-b17f-ab0c70ad78bb.htm" > mpz_inp_raw< / a > < / div > < div class = "seeAlsoStyle" > < a href = "3af6b34c-3242-2b75-e7c7-ab79af8a4b0f.htm" > < a href = "/html/3af6b34c-3242-2b75-e7c7-ab79af8a4b0f.htm#IO_of_Integers" > I/O of Integers< / a > < / a > < / div > < div class = "seeAlsoStyle" > < a href = "3af6b34c-3242-2b75-e7c7-ab79af8a4b0f.htm" > < a href = "https://gmplib.org/manual/I_002fO-of-Integers.html#I_002fO-of-Integers" > GNU MP - I/O of Integers< / a > < / a > < / div > < / div > < / div > < / div > < div id = "pageFooter" class = "pageFooter" > < / div > < / body > < / html >