From 6d77236f3845cd8785e7bdd4da3c5ef966be6043 Mon Sep 17 00:00:00 2001
From: Eddie Hung <eddie@fpgeh.com>
Date: Wed, 7 Aug 2019 12:20:08 -0700
Subject: substr() -> compare()

---
 passes/sat/expose.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'passes/sat/expose.cc')

diff --git a/passes/sat/expose.cc b/passes/sat/expose.cc
index 71ce1683d..7631d87e6 100644
--- a/passes/sat/expose.cc
+++ b/passes/sat/expose.cc
@@ -151,7 +151,7 @@ void create_dff_dq_map(std::map<RTLIL::IdString, dff_map_info_t> &map, RTLIL::De
 			continue;
 		}
 
-		if (info.cell->type.size() == 10 && info.cell->type.substr(0, 6) == "$_DFF_") {
+		if (info.cell->type.size() == 10 && info.cell->type.begins_with("$_DFF_")) {
 			info.bit_clk = sigmap(info.cell->getPort("\\C")).as_bit();
 			info.bit_arst = sigmap(info.cell->getPort("\\R")).as_bit();
 			info.clk_polarity = info.cell->type[6] == 'P';
-- 
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