70 lines
1.7 KiB
C++
70 lines
1.7 KiB
C++
#ifndef STRINGCONV_H
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#define STRINGCONV_H
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#include <type_traits>
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#include <string>
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#include <vector>
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#include <cstdlib>
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#include <cmath>
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#include <cstring>
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#include <ranges>
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namespace ranges = std::ranges;
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namespace views = std::ranges::views;
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constexpr size_t buffer_size = 32;
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namespace string
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{
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template <typename T>
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requires std::is_same_v<std::string, T> || std::is_same_v<const char *, T>
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inline std::string replace_string(const std::string &str, T d, T e)
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{
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std::string result = str;
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if (d == e)
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{
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return result;
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}
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size_t len = 0;
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while (true)
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{
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auto pos = result.find(d);
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if (pos == std::string::npos)
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{
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return result;
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}
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if constexpr (std::is_same_v<T, const char *>)
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{
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len = std::strlen(d);
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}
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else
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{
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len = d.length();
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}
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result = result.replace(pos, len, e);
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}
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}
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template <typename T = std::string>
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requires std::is_same_v<T, std::string> ||
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std::is_same_v<T, std::string_view>
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inline std::vector<T> split(T str, T d)
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{
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auto v = views::split(str, d) | views::transform([](auto word)
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{ return T(word.begin(), word.end()); });
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return std::vector<T>(v.begin(), v.end());
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}
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template <typename T>
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requires std::is_same_v<T, double> || std::is_same_v<T, float>
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double round(T value, int c)
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{
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auto temp = 1;
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for (int i = 0; i < c; i++)
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{
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temp = temp * 10;
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}
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return std::round(value * temp) / temp;
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}
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}
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#endif
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