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-rw-r--r--man3/copysign.315
1 files changed, 7 insertions, 8 deletions
diff --git a/man3/copysign.3 b/man3/copysign.3
index 9bd7932..8f7e7ab 100644
--- a/man3/copysign.3
+++ b/man3/copysign.3
@@ -9,7 +9,7 @@
.\" 386BSD man pages
.\" Modified 1993-07-24 by Rik Faith (faith@cs.unc.edu)
.\" Modified 2002-08-10 by Walter Harms (walter.harms@informatik.uni-oldenburg.de)
-.TH copysign 3 2023-07-20 "Linux man-pages 6.05.01"
+.TH copysign 3 2023-10-31 "Linux man-pages 6.7"
.SH NAME
copysign, copysignf, copysignl \- copy sign of a number
.SH LIBRARY
@@ -18,17 +18,17 @@ Math library
.SH SYNOPSIS
.nf
.B #include <math.h>
-.PP
+.P
.BI "double copysign(double " x ", double " y );
.BI "float copysignf(float " x ", float " y );
.BI "long double copysignl(long double " x ", long double " y );
.fi
-.PP
+.P
.RS -4
Feature Test Macro Requirements for glibc (see
.BR feature_test_macros (7)):
.RE
-.PP
+.P
.BR copysign (),
.BR copysignf (),
.BR copysignl ():
@@ -42,7 +42,7 @@ These functions return a value whose absolute value matches that of
.IR x ,
but whose sign bit matches that of
.IR y .
-.PP
+.P
For example,
.I "copysign(42.0,\ \-1.0)"
and
@@ -53,7 +53,7 @@ On success, these functions return a value whose magnitude is taken from
.I x
and whose sign is taken from
.IR y .
-.PP
+.P
If
.I x
is a NaN,
@@ -78,13 +78,12 @@ T{
.BR copysignl ()
T} Thread safety MT-Safe
.TE
-.sp 1
.SH VERSIONS
On architectures where the floating-point formats are not IEEE 754 compliant,
these functions may treat a negative zero as positive.
.SH STANDARDS
C11, POSIX.1-2008.
-.PP
+.P
This function is defined in IEC 559 (and the appendix with
recommended functions in IEEE 754/IEEE 854).
.SH HISTORY