1 files changed, 21 insertions, 0 deletions
diff --git a/sys/etc/xerverify.x b/sys/etc/xerverify.x
new file mode 100644
index 00000000..dfb4e88a
--- /dev/null
+++ b/sys/etc/xerverify.x
@@ -0,0 +1,21 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<error.h>
+
+# XER_VERIFY -- The following procedure is called by the iraf main after
+# a task completes, to verify that NHANDLERS is zero, indicating that an XERPOP
+# was executed for each XERPSH.  Note that a transfer out of an IFERR block
+# (a programming error) could prevent XERPOP from being called.
+
+procedure xer_verify()
+
+include	"error.com"
+
+begin
+	if (xerflg)
+	    call erract (EA_FATAL)
+	if (nhandlers != 0) {
+	    nhandlers = 0
+	    call putline (STDERR, "Warning: Transfer out of IFERR block\n")
+	}
+end