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What are the differences between a pointer variable and a reference variable in C++?
...re-assigned:
int x = 5;
int y = 6;
int *p;
p = &x;
p = &y;
*p = 10;
assert(x == 5);
assert(y == 10);
A reference cannot, and must be assigned at initialization:
int x = 5;
int y = 6;
int &r = x;
A pointer has its own memory address and size on the stack (4 bytes on x86), whereas a ...
How to change the href for a hyperlink using jQuery
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edited Aug 8 '18 at 0:51
lucasreta
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answered Oct 7 '08 at 18:1...
How can I use “.” as the delimiter with String.split() in java [duplicate]
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203
String.split takes a regex, and '.' has a special meaning for regexes.
You (probably) want som...
Add Foreign Key to existing table
... steps:
ALTER TABLE users ADD grade_id SMALLINT UNSIGNED NOT NULL DEFAULT 0;
ALTER TABLE users ADD CONSTRAINT fk_grade_id FOREIGN KEY (grade_id) REFERENCES grades(id);
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构建高并发高可用的电商平台架构实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...面缓存（http header中包含Expires Cache of Control，last modified(304，...一、 设计理念
1. 空间换时间
1) 多级缓存，静态化
客户端页面缓存（http header中包含Expires/Cache of Control，last modified(304，server不返回body，客户端可以继续用cache，...
Python date string to date object
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605
You can use strptime in the datetime package of Python:
>>> import datetime
>>&...
Handle Guzzle exception and get HTTP body
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edited Jun 20 '15 at 18:01
Mark Amery
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NHibernate.MappingException: No persister for: XYZ
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101
Sounds like you forgot to add a mapping assembly to the session factory configuration..
If you...
How can I remove all my changes in my SVN working directory?
...
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