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Allow reuse of buffer in reserve with v2 allocator

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allocation_command uses expand_{fwd,bwd} flags and its result is later compared with the old pointer, but the old pointer was not passed for reuse.
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Pavel A. Lebedev
2016-07-16 18:52:10 +03:00
committed by GitHub
parent 7e232bbc19
commit 0b75df9920
1 changed files with 1 additions and 1 deletions
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include/boost/container/vector.hpp
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@@ -2543,7 +2543,7 @@ class vector
//buffer or expand the old one. //buffer or expand the old one.
bool same_buffer_start; bool same_buffer_start;
size_type real_cap = 0; size_type real_cap = 0;
pointer reuse = 0; pointer reuse(this->m_holder.start());
pointer const ret(this->m_holder.allocation_command(allocate_new | expand_fwd | expand_bwd, new_cap, real_cap = new_cap, reuse)); pointer const ret(this->m_holder.allocation_command(allocate_new | expand_fwd | expand_bwd, new_cap, real_cap = new_cap, reuse));
//Check for forward expansion //Check for forward expansion