1 files changed, 67 insertions, 0 deletions
diff --git a/sys/qpoe/qpget.gx b/sys/qpoe/qpget.gx
new file mode 100644
index 00000000..dfdca1b0
--- /dev/null
+++ b/sys/qpoe/qpget.gx
@@ -0,0 +1,67 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<syserr.h>
+include	"../qpoe.h"
+
+# QP_GET -- Return the value of the named header parameter.  Automatic type
+# conversion is performed where possible.  While only scalar values can be
+# returned by this function, the scalar may be an element of a one-dimensional
+# array, e.g., "param[N]".
+
+PIXEL procedure qp_get$t (qp, param)
+
+pointer	qp			#I QPOE descriptor
+char	param[ARB]		#I parameter name
+
+pointer	pp
+int	dtype
+PIXEL	value
+int	qp_getparam()
+errchk	qp_getparam, syserrs
+
+begin
+	# Lookup the parameter and it's value.
+	dtype = qp_getparam (qp, param, pp)
+	if (pp == NULL)
+	    call syserrs (SYS_QPNOVAL, param)
+
+	# Set default value of INDEF or NULL.
+	$if (datatype == c)
+	    value = (NULL)
+	$else
+	    value = (INDEF)
+	$endif
+
+	# Get a valid parameter value.
+	switch (dtype) {
+	case TY_CHAR:
+	    value = (Memc[pp])
+	case TY_SHORT:
+	    if (!IS_INDEFS(Mems[pp]))
+		value = (Mems[pp])
+	case TY_INT:
+	    if (!IS_INDEFI(Memi[pp]))
+		value = (Memi[pp])
+	case TY_LONG:
+	    if (!IS_INDEFL(Meml[pp]))
+		value = (Meml[pp])
+	case TY_REAL:
+	    if (!IS_INDEFR(Memr[pp]))
+		value = (Memr[pp])
+	case TY_DOUBLE:
+	    if (!IS_INDEFD(Memd[pp]))
+		value = (Memd[pp])
+	default:
+	    call syserrs (SYS_QPBADCONV, param)
+	}
+
+	if (QP_DEBUG(qp) > 1) {
+	    call eprintf ("qp_get: `%s', TYP=(%d->%d) returns %g\n")
+		call pargstr (param)
+		call pargi (dtype)
+		call pargi (TY_PIXEL)
+		call parg$t (value)
+	}
+
+	return (value)
+end