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Minix/2.0.0/wwwman/man3/atol.3.html
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Minix/2.0.0/wwwman/man3/atol.3.html
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<HTML>
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<HEAD>
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<TITLE>atof(3)</TITLE>
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</HEAD>
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<BODY>
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<H1>atof(3)</H1>
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<HR>
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<PRE>
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</PRE>
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<H2>NAME</H2><PRE>
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atof, atoi, atol - convert ASCII to numbers
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</PRE>
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<H2>SYNOPSIS</H2><PRE>
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<STRONG>#include</STRONG> <STRONG><stdlib.h></STRONG>
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<STRONG>double</STRONG> <STRONG>atof(const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>nptr</EM><STRONG>)</STRONG>
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<STRONG>int</STRONG> <STRONG>atoi(const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>nptr</EM><STRONG>)</STRONG>
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<STRONG>long</STRONG> <STRONG>atol(const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>nptr</EM><STRONG>)</STRONG>
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</PRE>
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<H2>DESCRIPTION</H2><PRE>
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These functions convert a string pointed to by <EM>nptr</EM> to floating, integer,
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and long integer representation respectively. The first unrecognized
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character ends the string.
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<STRONG>Atof</STRONG> recognizes an optional string of spaces, then an optional sign, then
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a string of digits optionally containing a decimal point, then an
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optional `e' or `E' followed by an optionally signed integer.
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<STRONG>Atoi</STRONG> and <STRONG>atol</STRONG> recognize an optional string of spaces, then an optional
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sign, then a string of digits.
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</PRE>
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<H2>SEE ALSO</H2><PRE>
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<STRONG><A HREF="../man3/strtol.3.html">strtol(3)</A></STRONG>, <STRONG><A HREF="../man3/strtod.3.html">strtod(3)</A></STRONG>, <STRONG><A HREF="../man3/scanf.3.html">scanf(3)</A></STRONG>.
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</PRE>
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<H2>BUGS</H2><PRE>
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There are no provisions for overflow.
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</PRE>
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</BODY>
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</HTML>
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