| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152 |
- <html lang="en">
- <head>
- <title>math library conversion functions - avram - a virtual machine code interpreter</title>
- <meta http-equiv="Content-Type" content="text/html">
- <meta name="description" content="avram - a virtual machine code interpreter">
- <meta name="generator" content="makeinfo 4.13">
- <link title="Top" rel="start" href="index.html#Top">
- <link rel="up" href="math.html#math" title="math">
- <link rel="prev" href="math-library-predicates.html#math-library-predicates" title="math library predicates">
- <link rel="next" href="math-library-exceptions.html#math-library-exceptions" title="math library exceptions">
- <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
- <meta http-equiv="Content-Style-Type" content="text/css">
- <style type="text/css"><!--
- pre.display { font-family:inherit }
- pre.format { font-family:inherit }
- pre.smalldisplay { font-family:inherit; font-size:smaller }
- pre.smallformat { font-family:inherit; font-size:smaller }
- pre.smallexample { font-size:smaller }
- pre.smalllisp { font-size:smaller }
- span.sc { font-variant:small-caps }
- span.roman { font-family:serif; font-weight:normal; }
- span.sansserif { font-family:sans-serif; font-weight:normal; }
- --></style>
- </head>
- <body>
- <div class="node">
- <a name="math-library-conversion-functions"></a>
- <p>
- Next: <a rel="next" accesskey="n" href="math-library-exceptions.html#math-library-exceptions">math library exceptions</a>,
- Previous: <a rel="previous" accesskey="p" href="math-library-predicates.html#math-library-predicates">math library predicates</a>,
- Up: <a rel="up" accesskey="u" href="math.html#math">math</a>
- <hr>
- </div>
- <h4 class="subsection">D.11.3 <code>math</code> library conversion functions</h4>
- <p>The conversion function <code>strtod</code> takes a string representing a
- <a name="index-strtod-769"></a>floating point number in C format to its representation. This function
- is the primary means of creating or initializing floating point
- numbers in virtual code. A value of floating point 0.0 is returned if
- the string is not valid, but no exception is raised.
- <p>The conversion <code>asprintf</code> is similar to the one by that name in
- <a name="index-asprintf-770"></a>C, but requires a pair <code>(</code><var>f</var><code>,</code><var>x</var><code>)</code> as an argument. The
- left side <var>f</var> is a character string containing a C style format
- conversion for exactly one double precision floating point number,
- such as <code>'%0.4e'</code>, and the parameter <var>x</var> is a floating point
- number. The result returned will be a character string expressing the
- number in the specified format.
- </body></html>
|
