算法学习–整型转字符串

#include <string>
#include <iostream>
#include <algorithm>
#include <cassert>
using namespace std;
string intToString( int x )
{
    bool isNegative = x < 0;
    x = abs( x );
    
    string s;
    while( x != 0 )
    {
        s.push_back( '0' + x % 10 );
        x /= 10;
    }
    if( s.empty() ) 
    {
        return "0";
    }
    
    if( isNegative )
    {
        s.push_back( '-' );
    }
    
    reverse( s.begin(), s.end() );
    return s;
}
int main()
{
	int s1 = 2468;
	string s2 = "abcd";
	string s3 = "1357";
	string result = s3 + intToString(s1) + s2;
	
	cout << result << endl;
	system("pause");
	return 0;
}