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1 files changed, 57 insertions, 0 deletions

diff --git a/sys/qpoe/qpinherit.x b/sys/qpoe/qpinherit.x
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+++ b/sys/qpoe/qpinherit.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<error.h>
+include	"qpoe.h"
+
+# QP_INHERIT -- Copy all the inheritable parameters from one datafile to
+# another.
+
+procedure qp_inherit (n_qp, o_qp, out)
+
+pointer	n_qp			#I QPOE descriptor of new datafile
+pointer	o_qp			#I QPOE descriptor of old datafile
+int	out			#I output stream for verbose messages, or NULL
+
+int	nsyms, i
+pointer	sp, n_st, o_st, sym, op, pname, syms
+pointer	sthead(), stnext(), stname()
+int	qp_accessf()
+
+begin
+	call smark (sp)
+
+	n_st = QP_ST(n_qp)
+	o_st = QP_ST(o_qp)
+
+	# Count the symbols to be copied.
+	nsyms = 0
+	for (sym=sthead(o_st);  sym != NULL;  sym=stnext(o_st,sym))
+	    if (and (S_FLAGS(sym), SF_DELETED) == 0)
+		if (and (S_FLAGS(sym), SF_INHERIT) != 0)
+		    nsyms = nsyms + 1
+
+	# Construct a reversed array of symbol pointers.
+	call salloc (syms, nsyms, TY_POINTER) 
+	op = syms + nsyms - 1
+	for (sym=sthead(o_st);  sym != NULL;  sym=stnext(o_st,sym))
+	    if (and (S_FLAGS(sym), SF_DELETED) == 0)
+		if (and (S_FLAGS(sym), SF_INHERIT) != 0) {
+		    Memi[op] = sym
+		    op = op - 1
+		}
+
+	# Copy each symbol.
+	do i = 1, nsyms {
+	    pname = stname (o_st, Memi[syms+i-1])
+	    if (qp_accessf (n_qp, Memc[pname]) == YES) {
+		if (out != NULL) {
+		    call fprintf (out,
+			"parameter `%s' already exists, not copied\n")
+			call pargstr (Memc[pname])
+		}
+	    } else iferr (call qp_copyf (o_qp, Memc[pname], n_qp, Memc[pname]))
+		call erract (EA_WARN)
+	}
+
+	call sfree (sp)
+end