Function vec_to_string

include/CoolProp/numerics/MatrixMath.h:319–328

///Templates for turning vectors (1D-matrices) into strings
template <class T>
std::string vec_to_string(const std::vector<T>& a, const char* fmt) {
    if (a.size() < 1) return {""};
    std::stringstream out;
    out << "[ " << format(fmt, a[0]);
    for (size_t j = 1; j < a.size(); j++) {
        out << ", " << format(fmt, a[j]);
    }
    out << " ]";
    return out.str();
};
template <class T>
std::string vec_to_string(const std::vector<T>& a) {
    return vec_to_string(std::vector<double>(a.begin(), a.end()), stdFmt);