constants

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Why return string& from a const method won't compile?

Given the following code: #include <iostream> #include <string> using namespace std; class A[详细]

2023-03-31 06:27 分类：问答
Why compiler choose the const method instead of non-const?

I\'m trying to implement a three dimensional tensor using uBlas matrix from boost as a backend. One of the function is getting a reference to a slice and enables an easy assignment of matrix.[详细]

2023-03-31 01:55 分类：问答
external array definition

I would like to define array of strings in different cpp file, but there seems to be some discrepancy between definition and declaration when I try to make pointer (array element) also const. Using th[详细]

2023-03-30 05:12 分类：问答
Where to put a Constants class that is accessible throughout my Grails app?

I have a simple question but the google and stackoverflow results didn\'t satisfy me at all. How can I define a Constants class like:[详细]

2023-03-29 23:58 分类：问答
How to define constant in class constructor?

Can I define a cla开发者_如何学运维ss constant inside the class constructor function ? (based on certain conditions) That goes against the idea of class constants - they should not be dependent on a[详细]

2023-03-29 23:19 分类：问答
How to insert 'const Obj' into std::list<T*>?

I wrote a function void addAnything(T const &obj) { ... m_list.push_front(obj); // -开发者_JAVA技巧 line returns C2664 - list is initialized by std::list<T*> m_list[详细]

2023-03-29 16:18 分类：问答
proper names for the constant values while using matplotlib,

Being a newbie to using matplotlib ,I was trying out some code ,from examples I found on the net.I was using a lot of constants to adjust the dimensions of the plot elements.I found that I am at a los[详细]

2023-03-29 14:22 分类：问答
C++11: std::max(a,b) in static_assert()?

I noticed, that in [24.4.7] of the last C++-Std Doc N3291 max ist not constexpr: template<class T> const T& max(const T& a, const T& b);[详细]

2023-03-29 09:02 分类：问答
Where to store global constants in an iOS application?

Most of the models in my iOS app query a web server. I would like to have a configuration file storing the base URL of the server. It will look something like this:[详细]

2023-03-29 08:16 分类：问答
How to initialize a constant from a non-constant?

How can I initialize a constant to use it as a size parameter for a bitset object, such that it takes its value from anothe non-constant variable?[详细]

2023-03-28 23:53 分类：问答