.\" Modified 1993-07-24 by Rik Faith (faith@cs.unc.edu)
.\" Modified 2004-10-31 by aeb
.\"
-.TH LDEXP 3 2008-08-05 "" "Linux Programmer's Manual"
+.TH LDEXP 3 2010-09-20 "" "Linux Programmer's Manual"
.SH NAME
ldexp, ldexpf, ldexpl \- multiply floating-point number by integral power of 2
.SH SYNOPSIS
.ad l
.BR ldexpf (),
.BR ldexpl ():
-_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 ldexp ()