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-    <h1 id="firstHeading" class="firstHeading">rint, rintf, rintl, lrint, lrintf, lrintl, llrint, llrintf, llrintl</h1>            <table class="t-dcl-begin"> <tr class="t-dsc-header"> <th> Defined in header <code>&lt;math.h&gt;</code> </th> <th> </th> <th> </th> </tr> <tr class="t-dcl t-since-c99"> <td> <pre data-language="c">float rintf( float arg );</pre>
-</td> <td> (1) </td> <td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td> </tr> <tr class="t-dcl t-since-c99"> <td> <pre data-language="c">double rint( double arg );</pre>
-</td> <td> (2) </td> <td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td> </tr> <tr class="t-dcl t-since-c99"> <td> <pre data-language="c">long double rintl( long double arg );</pre>
-</td> <td> (3) </td> <td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td> </tr> <tr class="t-dsc-header"> <th> Defined in header <code>&lt;tgmath.h&gt;</code> </th> <th> </th> <th> </th> </tr> <tr class="t-dcl t-since-c99"> <td> <pre data-language="c">#define rint( arg )</pre>
-</td> <td> (4) </td> <td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td> </tr> <tr class="t-dsc-header"> <th> Defined in header <code>&lt;math.h&gt;</code> </th> <th> </th> <th> </th> </tr> <tr class="t-dcl t-since-c99"> <td> <pre data-language="c">long lrintf( float arg );</pre>
-</td> <td> (5) </td> <td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td> </tr> <tr class="t-dcl t-since-c99"> <td> <pre data-language="c">long lrint( double arg );</pre>
-</td> <td> (6) </td> <td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td> </tr> <tr class="t-dcl t-since-c99"> <td> <pre data-language="c">long lrintl( long double arg );</pre>
-</td> <td> (7) </td> <td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td> </tr> <tr class="t-dsc-header"> <th> Defined in header <code>&lt;tgmath.h&gt;</code> </th> <th> </th> <th> </th> </tr> <tr class="t-dcl t-since-c99"> <td> <pre data-language="c">#define lrint( arg )</pre>
-</td> <td> (8) </td> <td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td> </tr> <tr class="t-dsc-header"> <th> Defined in header <code>&lt;math.h&gt;</code> </th> <th> </th> <th> </th> </tr> <tr class="t-dcl t-since-c99"> <td> <pre data-language="c">long long llrintf( float arg );</pre>
-</td> <td> (9) </td> <td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td> </tr> <tr class="t-dcl t-since-c99"> <td> <pre data-language="c">long long llrint( double arg );</pre>
-</td> <td> (10) </td> <td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td> </tr> <tr class="t-dcl t-since-c99"> <td> <pre data-language="c">long long llrintl( long double arg );</pre>
-</td> <td> (11) </td> <td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td> </tr> <tr class="t-dsc-header"> <th> Defined in header <code>&lt;tgmath.h&gt;</code> </th> <th> </th> <th> </th> </tr> <tr class="t-dcl t-since-c99"> <td> <pre data-language="c">#define llrint( arg )</pre>
-</td> <td> (12) </td> <td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td> </tr>  </table> <div class="t-li1">
-<span class="t-li">1-3)</span> Rounds the floating-point argument <code>arg</code> to an integer value in floating-point format, using the current rounding mode.</div> <div class="t-li1">
-<span class="t-li">5-7, 9-11)</span> Rounds the floating-point argument <code>arg</code> to an integer value in integer format, using the current rounding mode.</div> <div class="t-li1">
-<span class="t-li">4,8,12)</span> Type-generic macros: If <code>arg</code> has type <code>long double</code>, <code>rintl</code>, <code>lrintl</code>, <code>llrintl</code> is called. Otherwise, if <code>arg</code> has integer type or the type <code>double</code>, <code>rint</code>, <code>lrint</code>, <code>llrint</code> is called. Otherwise, <code>rintf</code>, <code>lrintf</code>, <code>llrintf</code> is called, respectively.</div>  <h3 id="Parameters"> Parameters</h3> <table class="t-par-begin"> <tr class="t-par"> <td> arg </td> <td> - </td> <td> floating point value </td>
-</tr>
-</table> <h3 id="Return_value"> Return value</h3> <p>If no errors occur, the nearest integer value to <code>arg</code>, according to the <a href="../fenv/fe_round" title="c/numeric/fenv/FE round">current rounding mode</a>, is returned.</p>
-<h3 id="Error_handling"> Error handling</h3> <p>Errors are reported as specified in <a href="math_errhandling" title="c/numeric/math/math errhandling"><code>math_errhandling</code></a>.</p>
-<p>If the result of <code>lrint</code> or <code>llrint</code> is outside the range representable by the return type, a domain error or a range error may occur.</p>
-<p>If the implementation supports IEEE floating-point arithmetic (IEC 60559),   For the <code>rint</code> function:</p>
-<ul>
-<li> If <code>arg</code> is ±∞, it is returned, unmodified </li>
-<li> If <code>arg</code> is ±0, it is returned, unmodified </li>
-<li> If <code>arg</code> is NaN, NaN is returned </li>
-</ul>  For <code>lrint</code> and <code>llrint</code> functions:  <ul>
-<li> If <code>arg</code> is ±∞, <code><a href="../fenv/fe_exceptions" title="c/numeric/fenv/FE exceptions">FE_INVALID</a></code> is raised and an implementation-defined value is returned </li>
-<li> If the result of the rounding is outside the range of the return type, <code><a href="../fenv/fe_exceptions" title="c/numeric/fenv/FE exceptions">FE_INVALID</a></code> is raised and an implementation-defined value is returned </li>
-<li> If <code>arg</code> is NaN, <code><a href="../fenv/fe_exceptions" title="c/numeric/fenv/FE exceptions">FE_INVALID</a></code> is raised and an implementation-defined value is returned </li>
-</ul> <h3 id="Notes"> Notes</h3> <p><a rel="nofollow" class="external text" href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/lrint.html">POSIX specifies</a> that all cases where <code>lrint</code> or <code>llrint</code> raise <code><a href="../fenv/fe_exceptions" title="c/numeric/fenv/FE exceptions">FE_INEXACT</a></code> are domain errors.</p>
-<p>As specified in <a href="math_errhandling" title="c/numeric/math/math errhandling"><code>math_errhandling</code></a>, <code><a href="../fenv/fe_exceptions" title="c/numeric/fenv/FE exceptions">FE_INEXACT</a></code> may be (but isn't required to be on non-IEEE floating-point platforms) raised by <code>rint</code> when rounding a non-integer finite value.</p>
-<p>The only difference between <code>rint</code> and <code><a href="nearbyint" title="c/numeric/math/nearbyint">nearbyint</a></code> is that <code><a href="nearbyint" title="c/numeric/math/nearbyint">nearbyint</a></code> never raises <code><a href="../fenv/fe_exceptions" title="c/numeric/fenv/FE exceptions">FE_INEXACT</a></code>.</p>
-<p>The largest representable floating-point values are exact integers in all standard floating-point formats, so <code>rint</code> never overflows on its own; however the result may overflow any integer type (including <code><a href="../../types/integer" title="c/types/integer">intmax_t</a></code>), when stored in an integer variable.</p>
-<p>If the current rounding mode is...</p>
-<ul>
-<li> <code><a href="../fenv/fe_round" title="c/numeric/fenv/FE round">FE_DOWNWARD</a></code>, then <code>rint</code> is equivalent to <code><a href="floor" title="c/numeric/math/floor">floor</a></code>. </li>
-<li> <code><a href="../fenv/fe_round" title="c/numeric/fenv/FE round">FE_UPWARD</a></code>, then <code>rint</code> is equivalent to <code><a href="ceil" title="c/numeric/math/ceil">ceil</a></code>. </li>
-<li> <code><a href="../fenv/fe_round" title="c/numeric/fenv/FE round">FE_TOWARDZERO</a></code>, then <code>rint</code> is equivalent to <code><a href="trunc" title="c/numeric/math/trunc">trunc</a></code> </li>
-<li> <code><a href="../fenv/fe_round" title="c/numeric/fenv/FE round">FE_TONEAREST</a></code>, then <code>rint</code> differs from <code><a href="round" title="c/numeric/math/round">round</a></code> in that halfway cases are rounded to even rather than away from zero. </li>
-</ul> <h3 id="Example"> Example</h3> <div class="t-example"> <div class="c source-c"><pre data-language="c">#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-#include &lt;fenv.h&gt;
-#include &lt;limits.h&gt;
- 
-int main(void)
-{
-#pragma STDC FENV_ACCESS ON
-    fesetround(FE_TONEAREST);
-    printf("rounding to nearest (halfway cases to even):\n"
-           "rint(+2.3) = %+.1f  ", rint(2.3));
-    printf("rint(+2.5) = %+.1f  ", rint(2.5));
-    printf("rint(+3.5) = %+.1f\n", rint(3.5));
-    printf("rint(-2.3) = %+.1f  ", rint(-2.3));
-    printf("rint(-2.5) = %+.1f  ", rint(-2.5));
-    printf("rint(-3.5) = %+.1f\n", rint(-3.5));
- 
-    fesetround(FE_DOWNWARD);
-    printf("rounding down: \nrint(+2.3) = %+.1f  ", rint(2.3));
-    printf("rint(+2.5) = %+.1f  ", rint(2.5));
-    printf("rint(+3.5) = %+.1f\n", rint(3.5));
-    printf("rint(-2.3) = %+.1f  ", rint(-2.3));
-    printf("rint(-2.5) = %+.1f  ", rint(-2.5));
-    printf("rint(-3.5) = %+.1f\n", rint(-3.5));
-    printf("rounding down with lrint: \nlrint(+2.3) = %ld  ", lrint(2.3));
-    printf("lrint(+2.5) = %ld  ", lrint(2.5));
-    printf("lrint(+3.5) = %ld\n", lrint(3.5));
-    printf("lrint(-2.3) = %ld  ", lrint(-2.3));
-    printf("lrint(-2.5) = %ld  ", lrint(-2.5));
-    printf("lrint(-3.5) = %ld\n", lrint(-3.5));
- 
-    printf("lrint(-0.0) = %ld\n", lrint(-0.0));
-    printf("lrint(-Inf) = %ld\n", lrint(-INFINITY)); // FE_INVALID raised
- 
-    // error handling
-    feclearexcept(FE_ALL_EXCEPT);
-    printf("rint(1.1) = %.1f\n", rint(1.1));
-    if(fetestexcept(FE_INEXACT)) puts("    FE_INEXACT was raised");
- 
-    feclearexcept(FE_ALL_EXCEPT);
-    printf("lrint(LONG_MIN-2048.0) = %ld\n", lrint(LONG_MIN-2048.0));
-    if(fetestexcept(FE_INVALID)) puts("    FE_INVALID was raised");
-}</pre></div> <p>Possible output:</p>
-<div class="text source-text"><pre data-language="c">rounding to nearest (halfway cases to even):
-rint(+2.3) = +2.0  rint(+2.5) = +2.0  rint(+3.5) = +4.0
-rint(-2.3) = -2.0  rint(-2.5) = -2.0  rint(-3.5) = -4.0
-rounding down: 
-rint(+2.3) = +2.0  rint(+2.5) = +2.0  rint(+3.5) = +3.0
-rint(-2.3) = -3.0  rint(-2.5) = -3.0  rint(-3.5) = -4.0
-rounding down with lrint: 
-lrint(+2.3) = 2  lrint(+2.5) = 2  lrint(+3.5) = 3
-lrint(-2.3) = -3  lrint(-2.5) = -3  lrint(-3.5) = -4
-lrint(-0.0) = 0
-lrint(-Inf) = -9223372036854775808
-rint(1.1) = 1.0
-    FE_INEXACT was raised
-lrint(LONG_MIN-2048.0) = -9223372036854775808
-    FE_INVALID was raised</pre></div> </div> <h3 id="References"> References</h3>  <ul>
-<li> C17 standard (ISO/IEC 9899:2018): </li>
-<ul>
-<li> 7.12.9.4 The rint functions (p: 184) </li>
-<li> 7.12.9.5 The lrint and llrint functions (p: 184) </li>
-<li> 7.25 Type-generic math &lt;tgmath.h&gt; (p: 272-273) </li>
-<li> F.10.6.4 The rint functions (p: 384) </li>
-<li> F.10.6.5 The lrint and llrint functions (p: 384) </li>
-</ul>
-<li> C11 standard (ISO/IEC 9899:2011): </li>
-<ul>
-<li> 7.12.9.4 The rint functions (p: 252) </li>
-<li> 7.12.9.5 The lrint and llrint functions (p: 252) </li>
-<li> 7.25 Type-generic math &lt;tgmath.h&gt; (p: 373-375) </li>
-<li> F.10.6.4 The rint functions (p: 527) </li>
-<li> F.10.6.5 The lrint and llrint functions (p: 527) </li>
-</ul>
-<li> C99 standard (ISO/IEC 9899:1999): </li>
-<ul>
-<li> 7.12.9.4 The rint functions (p: 232-233) </li>
-<li> 7.12.9.5 The lrint and llrint functions (p: 233) </li>
-<li> 7.22 Type-generic math &lt;tgmath.h&gt; (p: 335-337) </li>
-<li> F.9.6.4 The rint functions (p: 463) </li>
-<li> F.9.6.5 The lrint and llrint functions (p: 463) </li>
-</ul>
-</ul>                       <h3 id="See_also"> See also</h3> <table class="t-dsc-begin"> <tr class="t-dsc"> <td> <div><a href="trunc" title="c/numeric/math/trunc"> <span class="t-lines"><span>trunc</span><span>truncf</span><span>truncl</span></span></a></div>
-<div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div> </td> <td> rounds to nearest integer not greater in magnitude than the given value <br> <span class="t-mark">(function)</span>  </td>
-</tr> <tr class="t-dsc"> <td> <div><a href="nearbyint" title="c/numeric/math/nearbyint"> <span class="t-lines"><span>nearbyint</span><span>nearbyintf</span><span>nearbyintl</span></span></a></div>
-<div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div> </td> <td> rounds to an integer using current rounding mode <br> <span class="t-mark">(function)</span>  </td>
-</tr> <tr class="t-dsc"> <td> <div><a href="../fenv/feround" title="c/numeric/fenv/feround"> <span class="t-lines"><span>fegetround</span><span>fesetround</span></span></a></div>
-<div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div> </td> <td> gets or sets rounding direction <br> <span class="t-mark">(function)</span>  </td>
-</tr> <tr class="t-dsc"> <td colspan="2"> <span><a href="https://en.cppreference.com/w/cpp/numeric/math/rint" title="cpp/numeric/math/rint">C++ documentation</a></span> for <code>rint</code> </td>
-</tr> </table>           <div class="_attribution">
-  <p class="_attribution-p">
-    &copy; cppreference.com<br>Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.<br>
-    <a href="https://en.cppreference.com/w/c/numeric/math/rint" class="_attribution-link">https://en.cppreference.com/w/c/numeric/math/rint</a>
-  </p>
-</div>