cppでよく使う処理をまとめた。

Utils.cpp

/*
 * Utils.cpp
 *
 *  Created on: 2013/06/19
 *      Author: root
 */

#include "Utils.h"

using namespace std;

string int_too_string(int number) {
	stringstream ss;
	ss << number;
	return ss.str();
}

/* stringを分割する */
vector<string> splitstring(const string& str, char delim) {
	istringstream iss(str);
	string tmp;
	vector<string> res;
	while (getline(iss, tmp, delim))
		res.push_back(tmp);
	return res;
}

/* string を intに変換する*/
int string_to_int(const string &str) {
	int n = atoi(str.c_str());
	return n;
}

/*stringを置換する*/
string Replace(string originalstr, string searchword, string destword) {
	string::size_type Pos(originalstr.find(searchword));

	while (Pos != string::npos) {
		originalstr.replace(Pos, searchword.length(), destword);
		Pos = originalstr.find(searchword, Pos + destword.length());
	}

	return originalstr;
}

template<typename T>
T stringTobinary(const string& text, int base) {
    assert(base == 8 || base == 10 || base == 16);
    std::istringstream is(text);
    T value;
    switch (base) {
    case 8:
        is >> std::oct >> value;
        break;
    case 10:
        is >> value;
        break;
    case 16:
        is >> std::hex >> value;
        break;
    default:
        break;
    }

    return value;
}

/*stringをucharに分割する*/
vector<unsigned char> splitstring_to_uchar(const string &str, char delim) {
	istringstream iss(str);
	string tmp;

	vector<unsigned char> res;
	while (getline(iss, tmp, delim)) {
		const string tmp_trim = Replace(tmp, " ", "");

		int length = tmp_trim.length();

		const char *cchar = tmp_trim.c_str();
		//int b = (unsigned char) c;

		unsigned char *uchar = new unsigned char[length + 1];
		for (int i = 0; i <= length; i++) {
			uchar[i] = (unsigned char) cchar[i];
		}

		res.push_back(*uchar);
		//res.push_back(value);
	}
	return res;
}