[PATCH v2 2/4] crc_changed: eliminate copying of shared_ptr values

[Giuliano Procida]

As pointed out in a review of similar code, it is possible to avoid
copying a couple of shared pointers in this function, by taking
references instead.

This commit also splits declarations to one per line and removes the
unnecessary parentheses around the return expression.

	* src/abg-comp-filter.cc (crc_changed): Take references to
	avoid std::shared_ptr copying. Split declarations into one per
	line. Remove unnecessary return expression parentheses.

Signed-off-by: Giuliano Procida <gprocida@google.com>
---
 src/abg-comp-filter.cc | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/abg-comp-filter.cc b/src/abg-comp-filter.cc
index 56251274..f90fdc78 100644
--- a/src/abg-comp-filter.cc
+++ b/src/abg-comp-filter.cc
@@ -230,11 +230,13 @@ static bool
 crc_changed(const function_or_var_decl_sptr& f,
 	    const function_or_var_decl_sptr& s)
 {
-  const auto symbol_f  = f->get_symbol(), symbol_s = s->get_symbol();
+  const auto& symbol_f = f->get_symbol();
+  const auto& symbol_s = s->get_symbol();
   if (!symbol_f || !symbol_s)
     return false;
-  const auto crc_f = symbol_f->get_crc(), crc_s = symbol_s->get_crc();
-  return (crc_f != 0 && crc_s != 0 && crc_f != crc_s);
+  const auto crc_f = symbol_f->get_crc();
+  const auto crc_s = symbol_s->get_crc();
+  return crc_f != 0 && crc_s != 0 && crc_f != crc_s;
 }
 
 /// Test if the current diff tree node carries a CRC change in either a
-- 
2.35.1.894.gb6a874cedc-goog