equality

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Using C++ std::equal on a container of shared_ptr

I have a container of std::shared_ptr.I want to compare two containers using std::equal.The class A has operator== defined.I want equal to compare if each element is equivalent using its operator==, n[详细]

2023-02-20 22:29 分类：问答
C++, equality with g++

Why this condition is never true ? Both parts of the equation are integers, so there must be equality for index = 0, 10, 20, 30, 40. I am compiling this code using g++.[详细]

2023-02-20 00:43 分类：问答
How do the SQL "IS" and "=" operators differ?

I am building some prepared statements that use parametrized values. As an example: SELECT * FROM \"Foo\" WHERE \"Bar\"=@param[详细]

2023-02-19 07:24 分类：问答
Why aren't bound instance methods in python reference equal?

开发者_C百科>>> class foo(object): ...def test(s): ...pass ... >>> a=foo() >>> a.test is a.test[详细]

2023-02-18 01:41 分类：问答
ActionScript: Should I always use strict equality ("===")?

I\'m wondering if I should always use \"===\" (strict equality) when doing equality checks... Is there any example of when it is preferable to use \"==\" (non-strict equality)? In particular, should:[详细]

2023-02-12 16:25 分类：问答
Surprising Tuple (in)equality

Until today, my understanding of .NET Tuple classes had been that they delegate their implementation of Equals() to their contents, allowing me to equate and compare them \"by value\".[详细]

2023-02-12 04:44 分类：问答
Where to put the equality function for a class in a third party library?

I\'m using a third party library containing a class which lacks both operator==() and Equals(). I\'d like to implement one myself, but I\'m not sure how to name it and where to put it. I\'ve tried to[详细]

2023-02-12 01:44 分类：问答
Can this type checks with "object" be improved?

if (typeof a !== \"object\" && typeof b !== \"object\") { return a == b; } ... // check pairwise equality of object a & b using `for in`[详细]

2023-02-11 12:55 分类：问答
How to implement C++ (in)equality operators for aggregate structs?

Sometimes I have structs such as this -- struct aggregate1 { std::string name; std::vector<ValueT> options;[详细]

2023-02-10 21:25 分类：问答
Using two equals signs in Visual Basic 2008

In code, why wouldn\'t this work?开发者_开发百科 intMax = intTopValue = 20 This is interpreted as intMax = (intTopValue = 20).[详细]

2023-02-10 11:12 分类：问答