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Add safety assertion

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Ion Gaztañaga
2016-06-25 11:05:07 +02:00
parent 153fd7f474
commit 2a04243de7
1 changed files with 1 additions and 0 deletions
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include/boost/container/string.hpp
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@@ -234,6 +234,7 @@ class basic_string_base
//Access and copy (to avoid UB) the first byte of the union to know if the //Access and copy (to avoid UB) the first byte of the union to know if the
//active representation is short or long //active representation is short or long
short_header hdr; short_header hdr;
BOOST_STATIC_ASSERT((sizeof(short_header) == 1));
*(unsigned char*)&hdr = *(unsigned char*)&this->members_.m_repr; *(unsigned char*)&hdr = *(unsigned char*)&this->members_.m_repr;
return hdr.is_short != 0; return hdr.is_short != 0;
} }