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bench: use a C++-11 compiler

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See https://github.com/google/benchmark#a-faster-keeprunning-loop.

* etc/bench.pl.in ($cxx): Be C++11.
(&bench_with_gbenchmark): Adjust.
This commit is contained in:
Akim Demaille
2020-03-22 11:57:58 +01:00
parent cf60d0a617
commit 4cfb067d93
1 changed files with 3 additions and 3 deletions
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6
etc/bench.pl.in
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@@ -148,7 +148,7 @@ The C compiler.
=item C<$cxx> =item C<$cxx>
The C++ compiler. The C++-11 compiler.
=item C<$cflags> =item C<$cflags>
@@ -173,7 +173,7 @@ Verbosity level.
my $bench; my $bench;
my $bison = $ENV{'BISON'} || '@abs_top_builddir@/tests/bison'; my $bison = $ENV{'BISON'} || '@abs_top_builddir@/tests/bison';
my $cc = $ENV{'CC'} || 'gcc'; my $cc = $ENV{'CC'} || 'gcc';
my $cxx = $ENV{'CXX'} || 'g++'; my $cxx = $ENV{'CXX'} || 'g++ -std=c++11';
my $cflags = '-O2'; my $cflags = '-O2';
my @directive = (); my @directive = ();
my $gbench = 0; my $gbench = 0;
@@ -579,7 +579,7 @@ static void BM_${prefix} (benchmark::State& state)
exit (3); exit (3);
} }
while (state.KeepRunning()) for (auto _ : state)
{ {
rewind (input); rewind (input);
${prefix}parse (); ${prefix}parse ();