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C pointer to array/array of pointers disambiguation
... pointer arithmetic to see if the row pointer is out of bounds. Example:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define NUM_ELEM(ar) (sizeof(ar) / sizeof((ar)[0]))
int *
put_off(const int newrow[2])
{
static int mymatrix[3][2];
static int (*rowp)[2] =...
setuptools vs. distutils: why is distutils still a thing?
... history of tools that can be used to package and describe projects: these include distutils in the Standard Library, distribute , distutils2 , and setuptools (and maybe more). It appears that distribute and distutils2 were discontinued in favor of setuptools , which leaves two competing ...
How can I add an item to a SelectList in ASP.net MVC
...sseWebb I suspect you just need to make sure you're using a signature that includes the option label, msdn.microsoft.com/en-us/library/ee703567.aspx, @Html.DropDownListFor( m => m.MenuSelection, (IEnumerable<SelectListItem>)ViewBag.Menu, "Select One", null ) for example, including the nul...
C++使用OLE/COM高速读写EXCEL的源码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...行操作。
2、导入Excel的整个类型库
stdafx.h
#include <afxdisp.h> // MFC Automation 類別
...
/*导入Office的类型库*/
#import "C:\\Program Files (x86)\\Common Files\\Microsoft Shared\\OFFICE15\\MSO.DLL" \
rename("RGB", "MSORGB") \
rename("DocumentPro...
get keys of json-object in JavaScript [duplicate]
... keys (property names) in an object. All modern browsers have Object.keys (including IE9+).
Object.keys(jsonData).forEach(function(key) {
var value = jsonData[key];
// ...
});
The rest of this answer was written in 2011. In today's world, A) You don't need to polyfill this unless you ne...
What is the difference between HTTP status code 200 (cache) vs status code 304?
...ed increment an asset version number for those files. For example you can include style.css?v1 and increment in the <link> element to style.css?v2 when there are changes.
– Ben Regenspan
Nov 3 '09 at 3:46
...
Is 'switch' faster than 'if'?
...I was suggesting. I guess this is a nice suplement.) It would be good to include gcc -S output: a sequence of .long L1 / .long L2 table entries is more meaningful than a hexdump, and more useful to someone that wants to learn how to look at compiler. (Although I guess you'd just look at the switc...
Is there a __CLASS__ macro in C++?
...om Scott Meyer's "Effective Modern C++" Here's a basic example:
Example
#include <boost/type_index.hpp>
class foo_bar
{
int whatever;
};
namespace bti = boost::typeindex;
template <typename T>
void from_type(T t)
{
std::cout << "\tT = " << bti::type_id_with_cvr&...
How can I set up an editor to work with Git on Windows?
...mber 2015 (6 years later)
The last release of git-for-Windows (2.5.3) now includes:
By configuring git config core.editor notepad, users can now use notepad.exe as their default editor.
Configuring git config format.commitMessageColumns 72 will be picked up by the notepad wrapper and line-wra...