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Is there a read-only generic dictionary available in .NET?
...mers from changing my data? If this were an IList I could simply return it AsReadOnly . Is there something similar I can do with a dictionary?
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Clean code to printf size_t in C++ (or: Nearest equivalent of C99's %z in C++)
...RDIFF_T_SPECIFIER "%zd"
#else
// TODO figure out which to use.
#if NUMBITS == 32
#define JL_SIZE_T_SPECIFIER something_unsigned
#define JL_SSIZE_T_SPECIFIER something_signed
#define JL_PTRDIFF_T_SPECIFIER something_signed
#else
#define JL_SIZE_T_SPECIFIER something_bigg...
计算统计特征（正态分布）函数及实例 - C/C++ - 清泛网 - 专注C/C++及内核技术
...实例main函数：#include "stdafx.h"#include "stdev.h"#include <map>int _tmain(int argc, _TCHAR* argv[]){std::map<int, int> map_...main函数：
#include "stdafx.h"
#include "stdev.h"
#include <map>
int _tmain(int argc, _TCHAR* argv[])
{
std::map<int, int> map_test;
map_test[0] = 100;...
How to calculate a time difference in C++
...PER_SEC;
If you want calculate execution time for self ( not for user ), it is better to do this in clock ticks ( not seconds ).
EDIT:
responsible header files - <ctime> or <time.h>
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Bulk insert with SQLAlchemy ORM
...emy introduced that in version 1.0.0:
Bulk operations - SQLAlchemy docs
With these operations, you can now do bulk inserts or updates!
For instance, you can do:
s = Session()
objects = [
User(name="u1"),
User(name="u2"),
User(name="u3")
]
s.bulk_save_objects(objects)
s.commit()
Her...
How do I get bash completion to work with aliases?
...
As stated in the comments above,
complete -o default -o nospace -F _git_checkout gco
will no longer work. However, there's a __git_complete function in git-completion.bash which can be used to set up completion for aliases like so:
__git_complete gco _git_checkout
...
How to list imported modules?
...) for modules:
import types
def imports():
for name, val in globals().items():
if isinstance(val, types.ModuleType):
yield val.__name__
This won't return local imports, or non-module imports like from x import y. Note that this returns val.__name__ so you get the original...
Get the latest record from mongodb collection
...
This is a rehash of the previous answer but it's more likely to work on different mongodb versions.
db.collection.find().limit(1).sort({$natural:-1})
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Detecting request type in PHP (GET, POST, PUT or DELETE)
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edited Aug 22 '16 at 13:39
Peter
7,01866 gold badges4646 silver badges8383 bronze badges
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When should iteritems() be used instead of items()?
Is it legitimate to use items() instead of iteritems() in all places? Why was iteritems() removed from Python 3? Seems like a terrific and useful method. What's the reasoning behind it?
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