document strtold. ok millert@

src/lib/libc/stdlib/Makefile.inc

@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile.inc,v 1.40 2008/09/07 20:36:08 martynas Exp $
+#	$OpenBSD: Makefile.inc,v 1.41 2008/09/13 22:48:45 martynas Exp $
 
 # stdlib sources
 .PATH: ${LIBCSRCDIR}/arch/${MACHINE_ARCH}/stdlib ${LIBCSRCDIR}/stdlib
@@ -64,7 +64,7 @@ MLINKS+=random.3 srandom.3 random.3 srandomdev.3
 MLINKS+=rand48.3 drand48.3 rand48.3 erand48.3 rand48.3 lrand48.3
 MLINKS+=rand48.3 mrand48.3 rand48.3 nrand48.3 rand48.3 jrand48.3
 MLINKS+=rand48.3 srand48.3 rand48.3 seed48.3 rand48.3 lcong48.3
-MLINKS+=strtod.3 strtof.3
+MLINKS+=strtod.3 strtof.3 strtod.3 strtold.3
 MLINKS+=strtol.3 strtoll.3 strtol.3 strtoq.3 strtol.3 strtoimax.3
 MLINKS+=strtoul.3 strtoull.3 strtoul.3 strtouq.3 strtoul.3 strtoumax.3
 MLINKS+=tsearch.3 tfind.3

src/lib/libc/stdlib/strtod.3

@@ -29,17 +29,18 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$OpenBSD: strtod.3,v 1.13 2008/09/13 22:25:49 martynas Exp $
+.\"	$OpenBSD: strtod.3,v 1.14 2008/09/13 22:48:45 martynas Exp $
 .\"
 .Dd $Mdocdate: September 13 2008 $
 .Dt STRTOD 3
 .Os
 .Sh NAME
 .Nm strtod ,
-.Nm strtof
+.Nm strtof ,
+.Nm strtold
 .Nd convert
 .Tn ASCII
-string to double or float
+string to double, float or long double
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Fd #include <stdlib.h>
@@ -48,6 +49,9 @@ string to double or float
 .Pp
 .Ft float
 .Fn strtof "const char *nptr" "char **endptr"
+.Pp
+.Ft long double
+.Fn strtold "const char *nptr" "char **endptr"
 .Sh DESCRIPTION
 The
 .Fn strtod
@@ -63,6 +67,13 @@ function converts the initial portion of the string pointed to by
 to
 .Li float
 representation.
+The
+.Fn strtold
+function converts the initial portion of the string pointed to by
+.Fa nptr
+to
+.Li long double
+representation.
 .Pp
 The expected form of the string is an optional plus
 .Pq Ql +
@@ -81,9 +92,10 @@ Leading whitespace characters in the string (as defined by the
 function) are skipped.
 .Sh RETURN VALUES
 The
-.Fn strtod
-and
+.Fn strtod ,
 .Fn strtof
+and
+.Fn strtold
 functions return the converted value, if any.
 .Pp
 If
@@ -123,9 +135,11 @@ Overflow or underflow occurred.
 .Sh STANDARDS
 The
 .Fn strtod
-function conform to
-.St -ansiC-89
-and
+function conforms to
+.St -ansiC-89 .
+The
 .Fn strtof
-conform to
+and
+.Fn strtold
+functions conform to
 .St -ansiC-99 .