1 files changed, 25 insertions, 0 deletions
diff --git a/noao/digiphot/photcal/mctable/mctgetrow.x b/noao/digiphot/photcal/mctable/mctgetrow.x
new file mode 100644
index 00000000..bc46b06e
--- /dev/null
+++ b/noao/digiphot/photcal/mctable/mctgetrow.x
@@ -0,0 +1,25 @@
+include	"../lib/mctable.h"
+
+
+# MCT_GETROW - Get pointer to row data values.
+
+pointer procedure mct_getrow (table, row)
+
+pointer	table			# table descriptor
+int	row			# row number
+
+begin
+	# Check the pointer and magic number.
+	if (table == NULL)
+	    call error (0, "mct_getrow: Null table pointer")
+	if (MCT_MAGIC (table) != MAGIC)
+	    call error (0, "mct_getrow: Bad magic number")
+
+	# Return the pointer to a row buffer, or NULL.
+	# if row is out of range
+	if (row < 1 || row > MCT_NPROWS (table))
+	    call error (0, "mct_getrow: Bad row number")
+
+	# Return row pointer.
+	return (MCT_DATA (table) + (row - 1) * MCT_MAXCOL (table))
+end