Vous ne pouvez pas sélectionner plus de 25 sujets Les noms de sujets doivent commencer par une lettre ou un nombre, peuvent contenir des tirets ('-') et peuvent comporter jusqu'à 35 caractères.

91 lines
3.5KB

  1. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
  2. <html>
  3. <!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
  4. <head>
  5. <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  6. <title>fegetexceptflag (LIBM)</title>
  7. <meta name="description" content="fegetexceptflag (LIBM)">
  8. <meta name="keywords" content="fegetexceptflag (LIBM)">
  9. <meta name="resource-type" content="document">
  10. <meta name="distribution" content="global">
  11. <meta name="Generator" content="makeinfo">
  12. <link href="index.html#Top" rel="start" title="Top">
  13. <link href="Document-Index.html#Document-Index" rel="index" title="Document Index">
  14. <link href="Document-Index.html#SEC_Contents" rel="contents" title="Table of Contents">
  15. <link href="Fenv.html#Fenv" rel="up" title="Fenv">
  16. <link href="fegetround.html#fegetround" rel="next" title="fegetround">
  17. <link href="fegetenv.html#fegetenv" rel="prev" title="fegetenv">
  18. <style type="text/css">
  19. <!--
  20. a.summary-letter {text-decoration: none}
  21. blockquote.indentedblock {margin-right: 0em}
  22. blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
  23. blockquote.smallquotation {font-size: smaller}
  24. div.display {margin-left: 3.2em}
  25. div.example {margin-left: 3.2em}
  26. div.lisp {margin-left: 3.2em}
  27. div.smalldisplay {margin-left: 3.2em}
  28. div.smallexample {margin-left: 3.2em}
  29. div.smalllisp {margin-left: 3.2em}
  30. kbd {font-style: oblique}
  31. pre.display {font-family: inherit}
  32. pre.format {font-family: inherit}
  33. pre.menu-comment {font-family: serif}
  34. pre.menu-preformatted {font-family: serif}
  35. pre.smalldisplay {font-family: inherit; font-size: smaller}
  36. pre.smallexample {font-size: smaller}
  37. pre.smallformat {font-family: inherit; font-size: smaller}
  38. pre.smalllisp {font-size: smaller}
  39. span.nolinebreak {white-space: nowrap}
  40. span.roman {font-family: initial; font-weight: normal}
  41. span.sansserif {font-family: sans-serif; font-weight: normal}
  42. ul.no-bullet {list-style: none}
  43. -->
  44. </style>
  45. </head>
  46. <body lang="en">
  47. <a name="fegetexceptflag"></a>
  48. <div class="header">
  49. <p>
  50. Next: <a href="fegetround.html#fegetround" accesskey="n" rel="next">fegetround</a>, Previous: <a href="fegetenv.html#fegetenv" accesskey="p" rel="prev">fegetenv</a>, Up: <a href="Fenv.html#Fenv" accesskey="u" rel="up">Fenv</a> &nbsp; [<a href="Document-Index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Document-Index.html#Document-Index" title="Index" rel="index">Index</a>]</p>
  51. </div>
  52. <hr>
  53. <a name="fegetexceptflag_002d_002d_002dget-floating_002dpoint-status-flags"></a>
  54. <h3 class="section">3.3 <code>fegetexceptflag</code>&mdash;get floating-point status flags</h3>
  55. <a name="index-fegetexceptflag"></a>
  56. <p><strong>Synopsis</strong>
  57. </p><div class="example">
  58. <pre class="example">#include &lt;fenv.h&gt;
  59. int fegetexceptflag(fexcept_t *<var>flagp</var>, int <var>excepts</var>);
  60. Link with -lm.
  61. </pre></div>
  62. <p><strong>Description</strong><br>
  63. This method attempts to store an implementation-defined representation
  64. of the states of the floating-point status flags specified by <var>excepts</var>
  65. in the memory pointed to by <var>flagp</var>.
  66. </p>
  67. <br>
  68. <p><strong>Returns</strong><br>
  69. If the information was successfully returned, this method returns
  70. zero. Otherwise, a non-zero value is returned.
  71. </p>
  72. <br>
  73. <p><strong>Portability</strong><br>
  74. ANSI C requires <code>fegetexceptflag</code>.
  75. </p>
  76. <p>Not all Newlib targets have a working implementation. Refer to
  77. the file <code>sys/fenv.h</code> to see the status for your target.
  78. </p>
  79. <br>
  80. </body>
  81. </html>