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fix the error while reading BOM.

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remove possible UB because of the use-after-move.
This commit is contained in:
ToruNiina
2018-12-24 15:06:26 +09:00
parent 617187969c
commit d24a188d4c
1 changed files with 2 additions and 2 deletions
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4
toml/parser.hpp
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@@ -1472,10 +1472,10 @@ inline table parse(std::istream& is, std::string fname = "unknown file")
// be compared to char. However, since we are always out of luck, we need to
// check our chars are equivalent to BOM. To do this, first we need to
// convert char to unsigned char to guarantee the comparability.
if(letters.size() >= 3)
if(loc.source()->size() >= 3)
{
std::array<unsigned char, 3> BOM;
std::memcpy(BOM.data(), letters.data(), 3);
std::memcpy(BOM.data(), loc.source()->data(), 3);
if(BOM[0] == 0xEF && BOM[1] == 0xBB && BOM[2] == 0xBF)
{
loc.iter() += 3; // BOM found. skip.