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Fix incorrect message when mUsedName is empty

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Previously, it printed ": expected 1 argument(s). 0 provided." when one positional argument is defined but nothing is provided. Now it prints "1 argument(s) expected. 0 provided."
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bufferbase 2020-06-04 17:06:20 -07:00 committed by GitHub
parent 176da54c9b
commit 43f4629be5
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1 changed files with 4 additions and 2 deletions
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6
include/argparse/argparse.hpp
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@ -452,8 +452,10 @@ public:
} else { } else {
if (mValues.size() != expected && !mDefaultValue.has_value()) { if (mValues.size() != expected && !mDefaultValue.has_value()) {
std::stringstream stream; std::stringstream stream;
stream << mUsedName << ": expected " << *expected << " argument(s). " if (!mUsedName.empty())
<< mValues.size() << " provided."; stream << mUsedName << ": ";
stream << *expected << " argument(s) expected. " << mValues.size()
<< " provided.";
throw std::runtime_error(stream.str()); throw std::runtime_error(stream.str());
} }
} }