12#ifndef MLPACK_CORE_UTIL_LOWER_STRING_HPP
13#define MLPACK_CORE_UTIL_LOWER_STRING_HPP
24inline void ToLower(
const std::string& input, std::string& output)
26 std::transform(input.begin(), input.end(), output.begin(),
27 [](
unsigned char c){ return std::tolower(c); });
void ToLower(const std::string &input, std::string &output)
* Convert a string to lowercase letters.
Linear algebra utility functions, generally performed on matrices or vectors.