Add trivial implementations of scalbln() and scalblnf().

These routines are specified in C99 for the sake of
architectures where an int isn't big enough to represent
the full range of floating-point exponents.  However,
even the 128-bit long double format has an exponent smaller
than 15 bits, so for all practical purposes, scalbln() and
scalblnf() are aliases for scalbn() and scalbnf(), respectively.

1 files changed, 15 insertions, 4 deletions

diff --git a/lib/msun/man/ieee.3 b/lib/msun/man/ieee.3
index fa81b06..9cd9e94 100644
--- a/lib/msun/man/ieee.3
+++ b/lib/msun/man/ieee.3
@@ -32,7 +32,7 @@
 .\"     from: @(#)ieee.3	6.4 (Berkeley) 5/6/91
 .\" $FreeBSD$
 .\"
-.Dd February 25, 1994
+.Dd June 20, 2004
 .Dt IEEE 3
 .Os
 .Sh NAME
@@ -47,6 +47,8 @@
 .Nm nextafterf ,
 .Nm remainder ,
 .Nm remainderf ,
+.Nm scalbln ,
+.Nm scalblnf ,
 .Nm scalbn ,
 .Nm scalbnf
 .Nd functions for IEEE arithmetic
@@ -77,6 +79,10 @@
 .Ft float
 .Fn remainderf "float x" "float y"
 .Ft double
+.Fn scalbln "double x" "long n"
+.Ft float
+.Fn scalblnf "float x" "long n"
+.Ft double
 .Fn scalbn "double x" "int n"
 .Ft float
 .Fn scalbnf "float x" "int n"
@@ -173,7 +179,9 @@ and
 .Fn remainder \*(If 0
 are invalid operations that produce a \*(Na.
 .Pp
-.Fn scalbn
+.Fn scalbln ,
+.Fn scalblnf ,
+.Fn scalbn ,
 and
 .Fn scalbnf
 return
@@ -187,8 +195,11 @@ The
 functions appeared in
 .Bx 4.3 .
 The
-.Fn copysignl
-function first appeared in
+.Fn copysignl ,
+.Fn scalbln ,
+and
+.Fn scalblnf
+functions first appeared in
 .Fx 5.3 .
 .Sh STANDARDS
 .St -ieee754