man3/t-v.3: srcfix: Use a single-font-style macro for a single argument

[thirdparty/man-pages.git] / man3 / tan.3

diff --git a/man3/tan.3 b/man3/tan.3
index e2b69f4adcc29c14a54dd65605191c9b591b5c6d..6a0c3d966ef1d10683b137e00e6ede231d9ed39f 100644 (file)
--- a/man3/tan.3
+++ b/man3/tan.3
@@ -32,57 +32,55 @@
 .\" Modified 2002-07-27 by Walter Harms
 .\"    (walter.harms@informatik.uni-oldenburg.de)
 .\"
-.TH TAN 3 2010-09-11 ""  "Linux Programmer's Manual"
+.TH TAN 3 2017-09-15 ""  "Linux Programmer's Manual"
 .SH NAME
 tan, tanf, tanl \- tangent function
 .SH SYNOPSIS
 .nf
 .B #include <math.h>
-.sp
+.PP
 .BI "double tan(double " x );
-.br
 .BI "float tanf(float " x );
-.br
 .BI "long double tanl(long double " x );
 .fi
-.sp
+.PP
 Link with \fI\-lm\fP.
-.sp
+.PP
 .in -4n
 Feature Test Macro Requirements for glibc (see
 .BR feature_test_macros (7)):
 .in
-.sp
+.PP
 .ad l
 .BR tanf (),
 .BR tanl ():
 .RS 4
-_BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE\ >=\ 600 || _ISOC99_SOURCE ||
-_POSIX_C_SOURCE\ >=\ 200112L;
-.br
-or
-.I cc\ -std=c99
+_ISOC99_SOURCE || _POSIX_C_SOURCE\ >=\ 200112L
+    || /* Since glibc 2.19: */ _DEFAULT_SOURCE
+    || /* Glibc versions <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
 .RE
 .ad
 .SH DESCRIPTION
-The
-.BR tan ()
-function returns the tangent of \fIx\fP, where \fIx\fP is
+These functions return the tangent of
+.IR x ,
+where
+.I x
+is
 given in radians.
 .SH RETURN VALUE
 On success, these functions return the tangent of
 .IR x .
-
+.PP
 If
 .I x
 is a NaN, a NaN is returned.
-
+.PP
 If
 .I x
 is positive infinity or negative infinity,
 a domain error occurs,
 and a NaN is returned.
-
+.PP
 If the correct result would overflow,
 a range error occurs,
 and the functions return
@@ -111,7 +109,7 @@ The following errors can occur:
 Domain error: \fIx\fP is an infinity
 .I errno
 is set to
-.BR EDOM
+.B EDOM
 (but see BUGS).
 An invalid floating-point exception
 .RB ( FE_INVALID )
@@ -126,8 +124,23 @@ Range error: result overflow
 An overflow floating-point exception
 .RB ( FE_OVERFLOW )
 is raised.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lbw21 lb lb
+l l l.
+Interface      Attribute       Value
+T{
+.BR tan (),
+.BR tanf (),
+.BR tanl ()
+T}     Thread safety   MT-Safe
+.TE
 .SH CONFORMING TO
-C99, POSIX.1-2001.
+C99, POSIX.1-2001, POSIX.1-2008.
+.PP
 The variant returning
 .I double
 also conforms to