1 files changed, 32 insertions, 0 deletions
diff --git a/sys/imfort/db/imgetd.x b/sys/imfort/db/imgetd.x
new file mode 100644
index 00000000..01a71cb1
--- /dev/null
+++ b/sys/imfort/db/imgetd.x
@@ -0,0 +1,32 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<syserr.h>
+include	"idb.h"
+
+# IMGETD -- Get an image header parameter of type double floating.  If the
+# named parameter is a standard parameter return the value directly,
+# else scan the user area for the named parameter and decode the value.
+
+double procedure imgetd (im, key)
+
+pointer	im			# image descriptor
+char	key[ARB]		# parameter to be returned
+
+int	ip
+double	dval
+pointer	sp, sval
+int	ctod()
+errchk	syserrs, imgstr
+
+begin
+	call smark (sp)
+	call salloc (sval, SZ_LINE, TY_CHAR)
+
+	ip = 1
+	call imgstr (im, key, Memc[sval], SZ_LINE)
+	if (ctod (Memc[sval], ip, dval) == 0)
+	    call syserrs (SYS_IDBTYPE, key)
+
+	call sfree (sp)
+	return (dval)
+end