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How do I check if a number is positive or negative in C#?
...rSimon Fischer
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64 bit OS下int占几个字节？ - C/C++ - 清泛网 - 专注C/C++及内核技术
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__int64才是8位的。
另外，指针是受编译器/OS影响的，32 bit编译器下int指针占4位，64 bit下int指针占8位。
写个小demo稍微验证下即可，结论：无论32/64位编译器、32/64位OS，结果都是4。
只与编译器位数有关，与OS位数无关...
mfc 按钮变成了非xp风格、界面变成windows经典样式？ - C++ UI - 清泛IT社...
... _M_IX86
#pragma comment(linker,"/manifestdependency:\"type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='x86' publicKeyToken='6595b64144ccf1df' language='*'\"")
#elif defined _M_IA64
#pragma comment(linker,"/manifestdependency:...
I forgot the password I entered during postgres installation
...ou should change
local all all trust
to
host all all 127.0.0.1/32 trust
you can now connect as any user. Connect as the superuser postgres (note, the superuser name may be different in your installation. In some systems it is called pgsql, for example.)
psql -U postgres
or
psql -h 12...
What is a smart pointer and when should I use one?
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answered Sep 20 '08 at 0:32
sergtksergtk
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Java inner class and static nested class
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132
Mind that you can also import a static nested class directly, i.e. you could do (at the top of the file): import OuterClass.StaticNestedCl...
What Java ORM do you prefer, and why? [closed]
It's a pretty open ended question. I'll be starting out a new project and am looking at different ORMs to integrate with database access.
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How to check if an object is an array?
...e jQuery.isArray(obj) or $.isArray(obj). If you use underscore you can use _.isArray(obj)
If you don't need to detect arrays created in different frames you can also just use instanceof
obj instanceof Array
share
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Git Tag list, display commit sha1 hashes
...f34da781a7f730d6ddd557a1 commit refs/tags/1.4.6
62ec20337a4125496bd4f56288f3283963153194 commit refs/tags/1.4.5
Result with annotated tags:
e2b2d6a172b76d44cb7b1ddb12ea5bfac9613a44 commit refs/tags/v2.11.0-rc3^{}
1310affe024fba407bff55dbe65cd6d670c8a32d commit refs/tags/v2.11.0-rc2^{}
3ab228137f9...
Delete a single record from Entity Framework?
I have a SQL Server table in Entity Framework named employ with a single key column named ID .
15 Answers
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