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Python Sets vs Lists
...move the object creation now. The setup phase of the timeit loops is only called once (docs.python.org/2/library/timeit.html#timeit.Timer.timeit).
– Ellis Percival
Sep 30 '14 at 10:09
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Why are unnamed namespaces used and what are their benefits?
...ng directive already took place.
This means you can have free functions called (for example) help that can exist in multiple translation units, and they won't clash at link time. The effect is almost identical to using the static keyword used in C which you can put in in the declaration of identif...
How do I look inside a Python object?
...-in functions:
type()
dir()
id()
getattr()
hasattr()
globals()
locals()
callable()
type() and dir() are particularly useful for inspecting the type of an object and its set of attributes, respectively.
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Which is faster : if (bool) or if(int)?
...s a bool as an 8-bit value, and your system ABI requires it to "promote" small (< 32-bit) integer arguments to 32-bit when pushing them onto the call stack. So to compare a bool, the compiler generates code to isolate the least significant byte of the 32-bit argument that g receives, and compares...
Is there a simple way to convert C++ enum to string?
... +1, GCCXML looks very nice! (Although I almost -1ed as I initially misread this as a suggestion to use the above verbose XML syntax to encode your enum -- a solution which reeks of overengineering!)
– j_random_hacker
Mar 12 '09 at 9:46
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(this == null) in C#!
...in sematic checks) in the compiler: it should NOT be possible. You are not allowed to write : base(CheckNull()) if CheckNull is not static, and alike you should not be able to inline an instance-bound lambda.
– quetzalcoatl
Aug 14 '12 at 0:29
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URL Encoding using C#
...file name) may be constructed using Uri.EscapeDataString(fileOrFolderName) allowing all non Uri compatible character (spaces, unicode ...). For example to allow any character in filename, use: req =(FtpWebRequest)WebRequest.Create(new Uri(path + "/" + Uri.EscapeDataString(filename))); Using...
Can I find events bound on an element with jQuery?
...ng, sorry :) $._data(element[0], ‘events’);
– totallyNotLizards
Oct 23 '12 at 8:10
17
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C++ multiline string literal
...
const char *text2 =
"Here, on the other hand, I've gone crazy \
and really let the literal span several lines, \
without bothering with quoting each line's \
content. This works, but you can't indent.";
Again, note those backslashes at the end of each line, they must be immediately before the...
BugTrap：程序崩溃快照、bug跟踪之利器 - C/C++ - 清泛网 - 专注C/C++及内核技术
...p.h"
static void SetupExceptionHandler()
{
LOG_TRACER();
BT_InstallSehFilter();
// 配置信息
BT_SetAppName(_T("MarketInfo"));
BT_SetDialogMessage(BTDM_INTRO1, _T("We're so Sorry, program crashed because of our mistakes !"));
BT_SetDialogMessage(BTDM_INTRO2, _T("本程序...