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移动前端开发之viewport的深入理解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...移动设备的屏幕像素密度越来越高，从iphone4开始，苹果公司便推出了所谓的Retina屏，分辨率提高了一倍，变成640x960，但屏幕尺寸却没变化，这就意味着同样大小的屏幕上，像素却多了一倍，这时，一个css像素是等于两个物理像...
Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...内存泄露概念
众所周知，在Java中有些对象的生命周期是有限的，当它们完成了特定的逻辑后将会被垃圾回收；但是，如果在对象的生命周期本来该被垃圾回收时这个对象还被别的对象所持有引用，那就会导致内存泄漏；这样的...
Determining 32 vs 64 bit in C++
...s a better way to do this. Please note we are trying to do this in a cross-platform, multiple compiler environment.
15 Answ...
How to determine device screen size category (small, normal, large, xlarge) using code?
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You can target the latest version of the platform and reference the constants from the Configuration class. These are static final values that will be inlined at compile time (that is, they will be replaced by their actual values), so your code won't break on older ...
How Big can a Python List Get?
...ation says:
sys.maxsize
The largest positive integer supported by the platform’s Py_ssize_t type, and thus the maximum size lists, strings, dicts, and many other containers can have.
In my computer (Linux x86_64):
>>> import sys
>>> print sys.maxsize
9223372036854775807
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Automatically add all files in a folder to a target using CMake?
I am considering switching a cross platform project from separate build management systems in Visual C++, XCode and makefiles to CMake.
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Unable to execute dex: GC overhead limit exceeded in Eclipse
... as below:
openFile
--launcher.XXMaxPermSize
512M
-showsplash
org.eclipse.platform
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms512m
-Xmx1024m
The changed area in image
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What are conventions for filenames in Go?
... I can think of however. When specifying code to be compiled for different platforms, you use the platform name as a suffix:
mypkg_linux.go // only builds on linux systems
mypkg_windows_amd64.go // only builds on windows 64bit platforms
Also if you have a file called server.go, the tests ...
What is the best way to compare floats for almost-equality in Python?
...though: installing NumPy can be a non-trivial experience depending on your platform.
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How to 'grep' a continuous stream?
... grep does what you describe. So like most things Unix, it depends on your platform's implementation. Since the question did not specify platform, your information appears to be false - after reviewing the code for BSD grep and comparing it to GNU grep, the behavior is definitely controlled by the -...