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程序崩溃时malloc/new可能导致死锁，程序卡死退不出 - C/C++ - 清泛IT论坛...
1、程序崩溃时malloc/new可能导致死锁，程序卡死退不出。Win、Linux下都会发生，应该是malloc系统函数的不可重入性导致的，函数中会加锁，当某个线程崩溃malloc没有正常返回时，其他线程就会发生死锁现象。而且只有崩溃时才有ma...
VC/Linux C++ 递归访问目录下所有文件 - c++1y / stl - 清泛IT社区，为创新赋能！
...find(char * lpPath)
{
char szFind[MAX_PATH];
WIN32_FIND_DATA FindFileData;
strcpy(szFind,lpPath);
strcat(szFind,"\\*.*");
HANDLE hFind=::FindFirstFile(szFind,&FindFileData);
if(INVALID_HANDLE_VALUE ==...
Best way to convert an ArrayList to a string
...o a string.
– starblue
Mar 1 '09 at 10:37
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This solution adds an extra "\t" at the end of the s...
How can I remove the decimal part from JavaScript number?
...ating the fractional portion with excellent platform support is by using a bitwise operator (.e.g |0). The side-effect of using a bitwise operator on a number is it will treat its operand as a signed 32bit integer, therefore removing the fractional component. Keep in mind this will also mangle numbe...
Are booleans as method arguments unacceptable? [closed]
...
Or Win32's GetMessage(): TRUE, FALSE, or -1.
– bk1e
Sep 26 '08 at 3:15
10
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How to print number with commas as thousands separators?
...rsion is useful for the negative case, but one recursion per comma seems a bit excessive to me.
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Get week of year in JavaScript like in PHP
... supports the ISO-8601 week number:
new Date().format('W');
It may be a bit overkill for just a week number, but it does support PHP style formatting and is quite handy if you'll be doing a lot of this.
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What is the most compatible way to install python modules on a Mac?
...stall or pip you will learn how to setup your environment in any platform (Win/Mac/Linux/Bsd...). Furthermore it will always be more up to date and with more packages
I personally let MacPorts handle my Python modules to keep everything updated. Like any other high level package manager (ie: apt-ge...
Round a Floating Point Number Down to the Nearest Integer?
.... I. e. it's already rounded as soon as it is parsed into a float, as a 64 bit float cannot represent that many significant digits. You can verify that with evaluating 1.9999999999999999 == 2.0. And if you suspect that the equals operation does some rounding on floats, you can compare the binary rep...
Left Align Cells in UICollectionView
... When grouping cell attributes by row, is the use of 10 an arbitrary number?
– amariduran
Aug 29 '19 at 22:10
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