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Exporting functions from a DLL with dllexport
...or maybe importing from another language (i.e PInvoke from .NET, or FFI in Python/R etc) you can use extern "C" inline with your dllexport to tell the C++ compiler not to mangle the names. And since we are using GetProcAddress instead of dllimport we don't need to do the ifdef dance from above, jus...
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
...def _UTILITY_STDEV_H_
#define _UTILITY_STDEV_H_
/*
* 计算统计特征的函数
*/
#define _USE_MATH_DEFINES
#include <algorithm>
#include <math.h>
#include <float.h>
#include <crtdbg.h>
#include <vector>
struct StdevInfo
{
static const double MAX_VAR;
double _ave;
//doub...
Why are const parameters not allowed in C#?
...nguage on top of the CLR should support const correctness (VB, JavaScript, Python, Ruby, F#, etc.) That's not going to happen.
Const correctness is pretty much a language feature only present in C++. So it pretty much boils down to the same argumentation as to why the CLR does not require checked ...
Is recursion a feature in and of itself?
...code itself, but rather in the code the compiler created). In Java, C, and Python, recursion is fairly expensive compared to iteration (in general) because it requires the allocation of a new stack frame. Not to mention you can get a stack overflow exception if the input is not valid too many times....
How can I validate a string to only allow alphanumeric characters in it?
...o true for "letters" other than a-zA-Z. For example, Japanese あ, Chinese 的, Korean 한 etc are considered to be Unicode "letters". If this is your intention, then fine, but judging from the various regex expressions in the other answers, this is likely not what most considered to be alpha[numeri...
My attempt at value initialization is interpreted as a function declaration, and why doesn't A a(())
..., because () doesn't mean anything (and even if did, like empty tuple (see Python), it would be one argument, not zero). Practically that means you cannot use shorthand syntax without using C++11's {} syntax, as there are no expressions to put in parenthesis, and C grammar for function declarations ...
Differences between Perl and PHP [closed]
...
Perl is used plenty for websites, no less than Python and Ruby for example. That said, PHP is used way more often than any of those. I think the most important factors in that are PHP's ease of deployment and the ease to start with it.
The differences in syntax are too m...
How to remove/delete a large file from commit history in Git repository?
...
This is a good solution! I've created a gist that has a python script to list the files & the git cmd that will delete the file you want cleaned gist.github.com/ariv3ra/16fd94e46345e62cfcbf
– punkdata
Jan 26 '16 at 23:16
...
What's the purpose of using braces (i.e. {}) for a single-line if or loop?
... ; ++i)
if (i % 2 == 0)
j++;
i++;
Oh no! Coming from Python, this looks ok, but in fact it isn't, as it's equivalent to:
int j = 0;
for (int i = 0 ; i < 100 ; ++i)
if (i % 2 == 0)
j++;
i++;
Of course, this is a silly mistake, but one that even an experienced p...
Skip List vs. Binary Search Tree
...ontinuations? generators are basically a special case of continuations for python.
– Claudiu
Sep 29 '10 at 20:50
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