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Report an error if the user forgets to pass an argument to --trace.

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This commit is contained in:
John Wiegley 2008-07-22 00:58:46 -04:00
parent aa4f0d4364
commit e41dbc204a
1 changed files with 8 additions and 1 deletions
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9
main.cc
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@ -373,7 +373,14 @@ int main(int argc, char * argv[], char * envp[])
else if (i + 1 < argc && std::strcmp(argv[i], "--trace") == 0) {
#if defined(TRACING_ON)
ledger::_log_level = ledger::LOG_TRACE;
ledger::_trace_level = boost::lexical_cast<int>(argv[i + 1]);
try {
ledger::_trace_level = boost::lexical_cast<int>(argv[i + 1]);
}
catch (const boost::bad_lexical_cast& e) {
std::cerr << "Argument to --trace must be an integer."
<< std::endl;
return 1;
}
i++;
#endif
}