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Resolving ambiguous overload on function pointer and std::function for a lambda using +
... not of arithmetic type etc., but it can be converted:
[expr.prim.lambda]/3
The type of the lambda-expression [...] is a unique, unnamed non-union class type — called the closure type — whose properties are described below.
[expr.prim.lambda]/6
The closure type for a lambda-expression...
Package objects
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Guillaume Massé
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answered Aug 3 '10 at 21:48
MoritzMoritz
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static const vs #define
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RobertS supports Monica Cellio
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answered Oct 28 '09 at 13:49
T.E.D.T.E.D.
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Scala: What is a TypeTag and how do I use it?
...List[Foo] => "list of foos"
}
we will get warnings:
<console>:23: warning: non-variable type argument String in type pattern List[String]↩
is unchecked since it is eliminated by erasure
case _: List[String] => "list of strings"
^
<console>:24: warning...
Access nested dictionary items via a list of keys?
...
236
Use reduce() to traverse the dictionary:
from functools import reduce # forward compatibility ...
How do I handle too long index names in a Ruby on Rails ActiveRecord migration?
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edited Nov 28 '18 at 10:39
Martin Verdejo
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answered ...
Can I list-initialize a vector of move-only type?
...er the in<T> idiom described on cpptruths (cpptruths.blogspot.com/2013/09/…). The idea is to determine lvalue/rvalue at run-time and then call move or copy-construction. in<T> will detect rvalue/lvalue even though the standard interface provided by initializer_list is const reference.
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Transposing a NumPy array
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answered May 10 '11 at 18:36
Joe KingtonJoe Kington
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How to determine if binary tree is balanced?
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answered Feb 1 '10 at 16:33
Eric LippertEric Lippert
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STL中map容器使用自定义key类型报错详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...定义一个结构体来试试：[cpp]view plaincopystructa{char*pName;intm_a;} 引言
STL的map容器中，key的类型是不是随意的呢？
实践
编写测试代码
定义一个结构体来试试：
struct a
{
char* pName;
int m_a;
};
...
map<a, int> mp;
a ...