再次暧昧的召唤 [英] Ambiguous call again
问题描述
我对过载功能进行了模糊调用。再次出错。
这是函数：
int nGetProfWidth（int ncols，unsigned ProfSpec）
{
if（（ProfSpec& PROF_2d）== 0）
返回ncols;
return int（sqrt（ncols））; //这里的错误是什么
}
当我想要一个整数返回时（如上面的代码 - 至少
我认为它应该返回一个整数），我应该如何重写这段代码？
Anna
Anna Smidt写道：
我对重载函数进行了模糊调用再次出错。
这是函数：
int nGetProfWidth（int ncols，unsigned ProfSpec）
{
if（（ProfSpec& PROF_2d）== 0）
返回ncols;
return int（sqrt（ncols））; //这里的错误是什么
}
当我想要一个整数返回时（如上面的代码 - 至少
我认为它应该返回一个整数），我应该如何重写这段代码？
Anna：
return int（sqrt（double（ncols）））;
你知道大多数整数都没有精确的整数平方根吗？
-
David Wilkinson
Visual C ++ MVP
你知道大多数整数都没有精确的整数平方根吗？
谢谢和.. 。
不，我不知道。但是我首先已经错了
因为我想的是一个VB6整数，它不等于
VC ++整数据我所知。我已经厌倦了趴在
桌子上，所以我明天早上会查一下（是的，我有一本C ++书:-)
Anna
哦，我在睡觉前有一个问题：
double hypotenuse = sqrt（square（py） - qy）+ square（px - qx））;
为什么在sqrt（" and before the last）之后有空格？
I am having an "ambiguous call to overloaded function" error again.
This is the function:
int nGetProfWidth (int ncols, unsigned ProfSpec)
{
if ((ProfSpec & PROF_2d) == 0)
return ncols;
return int(sqrt(ncols)); //HERE THE ERROR IS THROWN
}
When I want to have an integer returned (as in the code above - at least
I think it should return an integer), how should I rewrite this code?
Anna
Anna Smidt wrote:I am having an "ambiguous call to overloaded function" error again.
This is the function:
int nGetProfWidth (int ncols, unsigned ProfSpec)
{
if ((ProfSpec & PROF_2d) == 0)
return ncols;
return int(sqrt(ncols)); //HERE THE ERROR IS THROWN
}
When I want to have an integer returned (as in the code above - at least
I think it should return an integer), how should I rewrite this code?Anna:
return int(sqrt(double(ncols)));
You do know that most integers do not have an exact integer square root?
--
David Wilkinson
Visual C++ MVP
You do know that most integers do not have an exact integer square root?
Thanks and...
No, I did not know that. But I was wrong in the first place already
anyway because I was thinking of a VB6 integer which isn''t equal to
VC++ integers as far as I know. I''m already tired enough to drop on the
table, so I will look it up tomorrow morning (yes, I have a C++ book :-)
Anna
Oh, I have a question before I go to bed:
double hypotenuse = sqrt( square(p.y - q.y) + square(p.x - q.x) );
Why is there a space after "sqrt(" and before the last ")"?
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