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Fix out of bound read in ParameterParser::get_switch

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The empty string case was not correctly handled.
Fixes #1883
This commit is contained in:
Maxime Coste 2018-02-26 15:20:19 +11:00
parent 18f0902824
commit b4dc16010d
1 changed files with 1 additions and 1 deletions
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2
src/parameters_parser.cc
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@ -59,7 +59,7 @@ Optional<StringView> ParametersParser::get_switch(StringView name) const
for (size_t i = 0; i < m_params.size(); ++i)
{
const auto& param = m_params[i];
if (param[0_byte] == '-' and param.substr(1_byte) == name)
if (param.substr(0_byte, 1_byte) == "-" and param.substr(1_byte) == name)
return it->value.takes_arg ? m_params[i+1] : StringView{};
if (param == "--")