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👌 fix operator[]

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Niels Lohmann 2021-01-08 11:21:41 +01:00
parent 04a0a07159
commit e4af1ddb18
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1 changed files with 7 additions and 0 deletions
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7
include/nlohmann/json.hpp
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@ -3653,6 +3653,13 @@ class basic_json
// fill up array with null values if given idx is outside range // fill up array with null values if given idx is outside range
if (idx >= m_value.array->size()) if (idx >= m_value.array->size())
{ {
#if JSON_DIAGNOSTICS
// remember array size before resizing
const auto previous_size = m_value.array->size();
#endif
m_value.array->resize(idx + 1);
#if JSON_DIAGNOSTICS #if JSON_DIAGNOSTICS
// set parent for values added above // set parent for values added above
for (auto i = previous_size; i <= idx; ++i) for (auto i = previous_size; i <= idx; ++i)