Subversion Repositories lxp32

/*

 * Copyright (c) 2016 by Alex I. Kuznetsov.

 *

 * Part of the LXP32 CPU IP core.

 *

 * This module declares the members of the Utils namespace.

 */

#ifndef UTILS_H_INCLUDED

#define UTILS_H_INCLUDED

#include <string>

#include <type_traits>

namespace Utils {

        template <typename T> std::string hex(const T &w) {

                static_assert(std::is_integral<T>::value,"Argument must be of integral type");

                const char *hexstr="0123456789ABCDEF";

                std::string res;

                res.reserve(sizeof(T)*2);

                for(int i=sizeof(T)*8-4;i>=0;i-=4) {

                        res.push_back(hexstr[(w>>i)&0x0F]);

                }

                return res;

        }

        template <typename T> std::string bin(const T &w) {

                static_assert(std::is_integral<T>::value,"Argument must be of integral type");

                std::string res;

                res.reserve(sizeof(T)*8);

                for(int i=sizeof(T)*8-1;i>=0;i--) {

                        if(((w>>i)&1)!=0) res.push_back('1');

                        else res.push_back('0');

                }

                return res;

        }

        std::string urlEncode(const std::string &str);

        std::string urlDecode(const std::string &str);

        std::string normalizeSeparators(const std::string &path);

        std::string nativeSeparators(const std::string &path);

        bool isAbsolutePath(const std::string &path);

        bool fileExists(const std::string &path);

        std::string relativePath(const std::string &from,const std::string &to);

        std::string dequoteString(const std::string &str);

        bool ishexdigit(char ch);

        bool isoctdigit(char ch);

        template <typename T> bool isPowerOf2(const T &x) {

                static_assert(std::is_integral<T>::value,"Argument must be of integral type");

                return (x!=0)&&((x&(x-1))==0);

        }

}

#endif