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⚡ keys are now returned as const reference #1098

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Niels Lohmann
2018-05-26 13:26:40 +02:00
parent 4639bb2c8f
commit 90eb0a91e0
3 changed files with 30 additions and 10 deletions
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include/nlohmann/detail/iterators/iter_impl.hpp
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@ -583,7 +583,7 @@ class iter_impl
@brief return the key of an object iterator
@pre The iterator is initialized; i.e. `m_object != nullptr`.
*/
typename object_t::key_type key() const
const typename object_t::key_type& key() const
{
assert(m_object != nullptr);