对重载函数的模糊调用 - std :: to_string

Question

在尝试将整数值插入到字符串中时,我认为当我找到std :: to_string时,我的祈祷得到了回答,但出于某种原因,当我实际尝试使用它时,Visual Studio会抱怨模棱两可.这是我的功能的当前化身:

string get_time_remaining (int elapsed)
{
    string remaining;
    string temp_string;

    int time_remaining = TimeLimit - elapsed;

    int temp_int;

    temp_int = int(time_remaining / 3600);

    if(temp_int == 0)
        remaining = "00 : ";
    else
    {
        temp_string = std::to_string(temp_int);   // Here!
        remaining = temp_string + " : ";
    }

    temp_int = time_remaining % 60 + 1;

    if(temp_int < 10)
        remaining = remaining + "0";

    temp_string = std::to_string(temp_int);

    remaining = remaining + temp_string;

    return remaining;
}

我已经尝试在对to_string的调用中强制转换temp_int,正如你所看到的,我甚至尝试过对应该是整数除法的结果,但无论我做什么,VS都会向我吐出:

d:\my programs\powerplay\powerplay\powerplay.cpp(1285): error C2668: 'std::to_string' : ambiguous call to overloaded function
1>          d:\microsoft visual studio 10.0\vc\include\string(688): could be 'std::string std::to_string(long double)'
1>          d:\microsoft visual studio 10.0\vc\include\string(680): or       'std::string std::to_string(_ULonglong)'
1>          d:\microsoft visual studio 10.0\vc\include\string(672): or       'std::string std::to_string(_Longlong)'

任何帮助,将不胜感激.

Answer 1

MSVC11缺少正确的重载,std::to_string所以你必须做一个static_castto unsigned long long或long long

请注意,此错误已在11月CTP 2012中修复.您可以在此处获取此错误.