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Merge pull request #807 from theodelrieu/fix/805

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add forwarding references to json_ref constructor
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Niels Lohmann 2017-10-28 15:33:22 +02:00 committed by GitHub
commit 73d0095154
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2 changed files with 25 additions and 1 deletions
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2
src/json.hpp
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@ -6789,7 +6789,7 @@ class json_ref
{} {}
template <class... Args> template <class... Args>
json_ref(Args... args) json_ref(Args&&... args)
: owned_value(std::forward<Args>(args)...), : owned_value(std::forward<Args>(args)...),
value_ref(&owned_value), value_ref(&owned_value),
is_rvalue(true) is_rvalue(true)

24
test/src/unit-regression.cpp
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@ -36,6 +36,22 @@ using nlohmann::json;
#include <list> #include <list>
#include <cstdio> #include <cstdio>
namespace
{
struct nocopy
{
nocopy() = default;
nocopy(const nocopy &) = delete;
int val = 0;
friend void to_json(json& j, const nocopy& n)
{
j = {{"val", n.val}};
}
};
}
TEST_CASE("regression tests") TEST_CASE("regression tests")
{ {
SECTION("issue #60 - Double quotation mark is not parsed correctly") SECTION("issue #60 - Double quotation mark is not parsed correctly")
@ -1282,4 +1298,12 @@ TEST_CASE("regression tests")
} }
} }
*/ */
SECTION("issue #805 - copy constructor is used with std::initializer_list constructor.")
{
nocopy n;
json j;
j = {{"nocopy", n}};
CHECK(j["nocopy"]["val"] == 0);
}
} }