LDP: Update original to LDP v3.68

[linuxjm/LDP_man-pages.git] / original / man3 / frexp.3

diff --git a/original/man3/frexp.3 b/original/man3/frexp.3
index e5fc4f9..cf2a293 100644 (file)
--- a/original/man3/frexp.3
+++ b/original/man3/frexp.3
@@ -1,5 +1,6 @@
 .\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
 .\"
+.\" %%%LICENSE_START(VERBATIM)
 .\" Permission is granted to make and distribute verbatim copies of this
 .\" manual provided the copyright notice and this permission notice are
 .\" preserved on all copies.
@@ -19,6 +20,7 @@
 .\"
 .\" Formatted or processed versions of this manual, if unaccompanied by
 .\" the source, must acknowledge the copyright and authors of this work.
+.\" %%%LICENSE_END
 .\"
 .\" References consulted:
 .\"     Linux libc source code
@@ -28,7 +30,7 @@
 .\" Modified 2002-07-27 by Walter Harms
 .\"    (walter.harms@informatik.uni-oldenburg.de)
 .\"
-.TH FREXP 3 2008-10-29 "" "Linux Programmer's Manual"
+.TH FREXP 3 2013-08-06 "" "Linux Programmer's Manual"
 .SH NAME
 frexp, frexpf, frexpl \- convert floating-point number to fractional
 and integral components
@@ -53,25 +55,40 @@ Feature Test Macro Requirements for glibc (see
 .ad l
 .BR frexpf (),
 .BR frexpl ():
-_BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE\ >=\ 600 || _ISOC99_SOURCE; or
+.RS 4
+_BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE\ >=\ 600 || _ISOC99_SOURCE ||
+_POSIX_C_SOURCE\ >=\ 200112L;
+.br
+or
 .I cc\ -std=c99
-.ad b
+.RE
+.ad
 .SH DESCRIPTION
 The
 .BR frexp ()
-function is used to split the number \fIx\fP into a
-normalized fraction and an exponent which is stored in \fIexp\fP.
-.SH "RETURN VALUE"
+function is used to split the number
+.I x
+into a
+normalized fraction and an exponent which is stored in
+.IR exp .
+.SH RETURN VALUE
 The
 .BR frexp ()
 function returns the normalized fraction.
-If the argument \fIx\fP is not zero,
-the normalized fraction is \fIx\fP times a power of two,
+If the argument
+.I x
+is not zero,
+the normalized fraction is
+.I x
+times a power of two,
 and its absolute value is always in the range 1/2 (inclusive) to
 1 (exclusive), that is, [0.5,1).
 
-If \fIx\fP is zero, then the normalized fraction is
-zero and zero is stored in \fIexp\fP.
+If
+.I x
+is zero, then the normalized fraction is
+zero and zero is stored in
+.IR exp .
 
 If
 .I x
@@ -88,7 +105,15 @@ positive infinity (negative infinity) is returned, and the value of
 is unspecified.
 .SH ERRORS
 No errors occur.
-.SH "CONFORMING TO"
+.SH ATTRIBUTES
+.SS Multithreading (see pthreads(7))
+The
+.BR frexp (),
+.BR frexpf (),
+and
+.BR frexpl ()
+functions are thread-safe.
+.SH CONFORMING TO
 C99, POSIX.1-2001.
 The variant returning
 .I double
@@ -102,7 +127,7 @@ The program below produces results such as the following:
 .RB "$" " ./a.out 2560"
 frexp(2560, &e) = 0.625: 0.625 * 2^12 = 2560
 .RB "$" " ./a.out \-4"
-frexp(\-4, &e) = \-0.5: \-0.5 * 2^3 = -4
+frexp(\-4, &e) = \-0.5: \-0.5 * 2^3 = \-4
 .in
 .fi
 .SS Program source
@@ -125,8 +150,17 @@ main(int argc, char *argv[])
     printf("frexp(%g, &e) = %g: %g * %d^%d = %g\\n",
            x, r, r, FLT_RADIX, exp, x);
     exit(EXIT_SUCCESS);
-} /* main */
+}
 .fi
-.SH "SEE ALSO"
+.SH SEE ALSO
 .BR ldexp (3),
 .BR modf (3)
+.SH COLOPHON
+This page is part of release 3.68 of the Linux
+.I man-pages
+project.
+A description of the project,
+information about reporting bugs,
+and the latest version of this page,
+can be found at
+\%http://www.kernel.org/doc/man\-pages/.