C++ (Cpp) ValueMap::set Examples

Example #1

File: index_util.cpp Project: sylvanmist/ucair_01

bool loadColProbs(const std::string &file_name, NameDict &term_dict, ValueMap &col_probs, double &default_col_prob){
	col_probs.clear();
	ifstream fin(file_name.c_str());
	if (! fin){
		ucair::getLogger().error("Failed to open " + file_name);
		return false;
	}
	try{
		string line;
		if (! getline(fin, line)){
			return false;
		}
		size_t pos = line.find('\t');
		if (pos == string::npos){
			return false;
		}
		trim_right(line);
		int unique_term_count = lexical_cast<int>(line.substr(0, pos));
		long long total_term_count = lexical_cast<long long>(line.substr(pos + 1));
		default_col_prob = 1.0 / (total_term_count + unique_term_count);
		while (getline(fin, line)){
			size_t pos = line.find('\t');
			if (pos == string::npos){
				return false;
			}
			trim_right(line);
			string term = line.substr(0, pos);
			long long term_count = lexical_cast<long long>(line.substr(pos + 1));
			int term_id = term_dict.getId(term, true);
			double col_prob = (term_count + 1.0) / (total_term_count + unique_term_count);
			col_probs.set(term_id, col_prob, false);
		}
	}
	catch (bad_lexical_cast &){
		return false;
	}
	return true;
}