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What is __declspec and when do I need to use it?
I have seen instances of __declspec in the code that I am reading. What is it? And when would I need to use this construct?
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What does Python's eval() do?
... command string and then have python run it as code. So for example: eval("__import__('os').remove('file')").
– BYS2
Feb 21 '12 at 19:24
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Multiple constructors in python? [duplicate]
...ctors. However, you can define a default value if one is not passed.
def __init__(self, city="Berlin"):
self.city = city
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How do I find where an exception was thrown in C++?
...d (Linux).
You can install your own terminate() function by using std::set_terminate(). You should be able to set a breakpoint on your terminate function in gdb. You may be able to generate a stack backtrace from your terminate() function and this backtrace may help in identifying the location of...
__declspec(dllexport) 导出符号解决链接失败问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
__declspec(dllexport) 导出符号解决链接失败问题特别注意：dllexport、dllimport导出、导入的方式仅针对dll动态库，而lib静态库无需任何申明，宏全部替换成空即可。error LNK2019: 无法解析的外部符号 "public: __thiscall CBtt::CBtt(void)" (??0CBtt@@Q...
python: How do I know what type of exception occurred?
...pe {0} occurred. Arguments:\n{1!r}"
message = template.format(type(ex).__name__, ex.args)
print message
Make sure message is brought to the attention of the user in a hard-to-miss way! Printing it, as shown above, may not be enough if the message is buried in lots of other messages. Failin...
Calculate difference between two datetimes in MySQL
...QL function. For example, you can use:
SELECT TIMESTAMPDIFF(SECOND, '2012-06-06 13:13:55', '2012-06-06 15:20:18')
In your case, the third parameter of TIMSTAMPDIFF function would be the current login time (NOW()). Second parameter would be the last login time, which is already in the database.
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Catch a thread's exception in the caller thread in Python
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The problem is that thread_obj.start() returns immediately. The child thread that you spawned executes in its own context, with its own stack. Any exception that occurs there is in the context of the child thread, and it is in its own stack. One way I...
Exiting from python Command Line
...e exit in the command line, it finds the variable with that name and calls __repr__ (or __str__) on it. Usually, you'd get a result like:
<function exit at 0x00B97FB0>
But they decided to redefine that function for the exit object to display a helpful message instead. Whether or not that's ...
Does .NET have a way to check if List a contains all items in List b?
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answered Oct 5 '09 at 15:06
Jon SkeetJon Skeet
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