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Why can templates only be implemented in the header file?
...athanOliver
142k2020 gold badges224224 silver badges310310 bronze badges
answered Jan 30 '09 at 10:26
Luc TourailleLuc Touraille
7...
C++特化模板函数的符号多重定义错误问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
...数名可以在多个函数模板声明或定义之间被重复使用.
3.模板参数在函数参数表中可以出现的次数没有限制
4.一个模板的定义和多个声明所使用的模板参数名无需相同
5.如果一个函数模板有一个以上的模板类型参数,则每...
Why use apparently meaningless do-while and if-else statements in macros?
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843
The do ... while and if ... else are there to make it so that a
semicolon after your macro alway...
C++ sorting and keeping track of indexes
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305
Using C++ 11 lambdas:
#include <iostream>
#include <vector>
#include <numeric&...
C++中智能指针的设计和使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...费。因为指针指向的对象的复制不一定是必要的。
（3） 第三种就是一种折中的方式。利用一个辅助类来管理指针的复制。原来的类中有一个指针指向辅助类，辅助类的数据成员是一个计数器和一个指针（指向原来的）（此...
How do I do base64 encoding on iOS?
..., 'p', 'q', 'r', 's', 't', 'u', 'v',
'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'
};
@implementation NSString (NSStringAdditions)
+ (NSString *) base64StringFromData: (NSData *)data length: (int)length {
unsigned long ixtext, lentext;
long ctremaining;
uns...
C++ lambda with captures as a function pointer
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3
A cleaner solution is to wrap the lambda inside an adapter, assuming that the function pointer has a context parameter.
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Convert a row of a data frame to vector
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edited Oct 30 '19 at 16:15
answered Jan 23 '13 at 16:42
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typeof for RegExp
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edited Nov 27 '18 at 6:34
Alexis Wilke
14.2k77 gold badges5151 silver badges9898 bronze badges
answer...
How do I run all Python unit tests in a directory?
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493
With Python 2.7 and higher you don't have to write new code or use third-party tools to do this;...