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How do you find the current user in a Windows environment?
...scraping the name of the user that started the explorer.exe task:
for /f "TOKENS=1,2,*" %%a in ('tasklist /FI "IMAGENAME eq explorer.exe" /FO LIST /V') do if /i "%%a %%b"=="User Name:" set _currdomain_user=%%c
for /f "TOKENS=1,2 DELIMS=\" %%a in ("%_currdomain_user%") do set _currdomain=%%a & s...
Java: int array initializes with nonzero elements
... we are faced with a bug in the JIT-compiler. Compiler determines that the allocated array is filled after allocation in Arrays.fill(...), but the check for uses between the allocation and the fill is faulty. So, compiler performs an illegal optimization - it skips zeroing of allocated array.
This ...
Is it safe to push_back an element from the same vector?
If the second push_back causes a reallocation, the reference to the first integer in the vector will no longer be valid. So this isn't safe?
...
Best way to serialize an NSData into a hexadeximal string
... const unsigned char *dataBuffer = self.bytes;
char *chars = malloc(sizeof(char) * (bytesCount * 2 + 1));
if (chars == NULL) {
// malloc returns null if attempting to allocate more memory than the system can provide. Thanks Cœur
[NSException raise...
Purpose of Django setting ‘SECRET_KEY’
...KEY = ''
conf/project_template/settings.py:61:SECRET_KEY = ''
contrib/auth/tokens.py:54: hash = sha_constructor(settings.SECRET_KEY + unicode(user.id) +
contrib/comments/forms.py:86: info = (content_type, object_pk, timestamp, settings.SECRET_KEY)
contrib/formtools/utils.py:15: orde...
Why is a boolean 1 byte and not 1 bit of size?
...ovide sub-byte pointers as an extension, but "ordinary" objects like bool, allocated in ordinary ways, have to do what the standard says.
– Steve Jessop
Jan 8 '11 at 15:43
...
使用std::string作为std::map的key出错解决 - C/C++ - 清泛网 - 专注C/C++及内核技术
...aits=std::_Tmap_traits<std::string,std::string,std::less<std::string>,std::allocator<std::pair<const std::string,std::string>>,false>
1> ]
1> c:\users\fstech\documents\visual studio 2012\projects\cpzj\cpzj\cpzj.cpp(95): 参见对正在编译的类 模板 实例化“std::map<_Kty...
Difference between MEAN.js and MEAN.io
...h CDN versions
0.2% Authentication - Cookie
0.2% Authentication - JSON Web Token (JWT)
0.2% Server-side logging
0.1% Development build script: run tasks in parallel to speed it up
0.1% Development build script: Renames asset files to prevent browser caching
0.1% Development build script: run end to ...
How are multi-dimensional arrays formatted in memory?
In C, I know I can dynamically allocate a two-dimensional array on the heap using the following code:
6 Answers
...
How can I programmatically get the MAC address of an iphone
...
errorFlag = @"sysctl mgmtInfoBase failure";
else
{
// Alloc memory based on above call
if ((msgBuffer = malloc(length)) == NULL)
errorFlag = @"buffer allocation failure";
else
{
// Get system information, store in buffer
if (sysctl(mgmtI...