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Printf width specifier to maintain precision of floating-point value
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If you are only interested in the bit (resp hex pattern) you could use the %a format. This guarantees you:
The
default precision suffices for an exact representation of the value if an exact representation in base 2 exists and otherwise i...
Store JSON object in data attribute in HTML jQuery
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nathan gonzaleznathan gonzalez
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How to safely call an async method in C# without await
... Queues, MSMQ) and a separate background process (e.g., Azure Worker Role, Win32 Service) to process them.
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[精华] VC中BSTR、Char和CString类型的转换 - C/C++ - 清泛网 - 专注C/C++及内核技术
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HRESULT IWebBrowser2::put_StatusText( BSTR bstr );
// shows using the Win32 function
// to allocate memory for the string:
BSTR bstrStatus = ::SysAllocString( L"Some text" );
if (bstrStatus == NULL)
return E_OUTOFMEMORY;
pBrowser->put_StatusText( bstrStatus );
// Free ...
How to empty a list?
... to 0 would have the same effect. It is a pretty neat trick though, I'm a bit sad, that it didn't receive much attention..
– Peter Varo
May 24 '18 at 9:54
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Stack smashing detected
...following snippet:
#include <stdio.h>
void func()
{
char array[10];
gets(array);
}
int main(int argc, char **argv)
{
func();
}
The compiler, (in this case gcc) adds protection variables (called canaries) which have known values. An input string of size greater than 10 causes c...
PyPy — How can it possibly beat CPython?
... the PyPy python interpreter however they change their implementation, allowing for much more freedom in experimentation to improve performance (without worrying about introducing GC bugs or updating the JIT compiler to cope with the changes). It also means when they get around to implementing a Pyt...
Java regex email
...ex on one of my projects couple of years ago, but I forgot that it needs a bit of polishing to flatten and properly escape it. Actually IntelliJ does a nice job in automatically escaping of an expression pasted inside double quotes.
– ejboy
Mar 11 '13 at 15:24
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Bulk package updates using Conda
...l the available versions of each installed AND outdated package, that is a bit too much in many cases,,, Personally I prefer to use conda update --all, that shows what's going to be installed and prompts for confirmation: you reply N and you have a compact list of outdated packages.
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Relationship between SciPy and NumPy
... by my comment above. Importing SciPy when only NumPy is needed might be a bit overkill. On the other hand, NumPy is imported when SciPy is loaded, so there is no need to import NumPy in addition to SciPy. Off course, there are good arguments for following the documentation, so feel free to do what ...