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compiler: make comparison operator() methods const

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This is required for new versions of libstdc++ in C++17 mode.
    
    Fixes GCC PR 83102.
    
    Reviewed-on: https://go-review.googlesource.com/79396

From-SVN: r255062
This commit is contained in:
Ian Lance Taylor 2017-11-22 15:18:43 +00:00
parent 543382b75e
commit 9e951dd664
4 changed files with 4 additions and 4 deletions
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2
gcc/go/gofrontend/MERGE
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@ -1,4 +1,4 @@
178c00f929e6268f24f0c9dd9eb69d3d14d8096e
1db7dc97d01ee230ff4874ce1c9775a24ffd16ac
The first line of this file holds the git revision number of the last
merge done from the gofrontend repository.

2
gcc/go/gofrontend/gogo.h
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@ -117,7 +117,7 @@ class Import_init
// For sorting purposes.
struct Import_init_lt {
bool operator()(const Import_init* i1, const Import_init* i2)
bool operator()(const Import_init* i1, const Import_init* i2) const
{
return i1->init_name() < i2->init_name();
}

2
gcc/go/gofrontend/parse.cc
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@ -20,7 +20,7 @@
bool
Parse::Enclosing_var_comparison::operator()(const Enclosing_var& v1,
const Enclosing_var& v2)
const Enclosing_var& v2) const
{
if (v1.var() == v2.var())
return false;

2
gcc/go/gofrontend/parse.h
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@ -127,7 +127,7 @@ class Parse
struct Enclosing_var_comparison
{
bool
operator()(const Enclosing_var&, const Enclosing_var&);
operator()(const Enclosing_var&, const Enclosing_var&) const;
};
// A set of Enclosing_var entries.