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Templated check for the existence of a class member function?
...e:
#include <iostream>
struct Hello
{
int helloworld() { return 0; }
};
struct Generic {};
// SFINAE test
template <typename T>
class has_helloworld
{
typedef char one;
struct two { char x[2]; };
template <typename C> static one test( decltype(&C::hellow...
Return value in a Bash function
...you can specify with it is the function's own exit status (a value between 0 and 255, 0 meaning "success"). So return is not what you want.
You might want to convert your return statement to an echo statement - that way your function output could be captured using $() braces, which seems to be exact...
How Do I 'git fetch' and 'git merge' from a Remote Tracking Branch (like 'git pull')
...
170
You don't fetch a branch, you fetch an entire remote:
git fetch origin
git merge origin/an-othe...
How to create a tag with Javascript?
...red; }',
head = document.head || document.getElementsByTagName('head')[0],
style = document.createElement('style');
head.appendChild(style);
style.type = 'text/css';
if (style.styleSheet){
// This is required for IE8 and below.
style.styleSheet.cssText = css;
} else {
style.appendChi...
What are the differences between .so and .dylib on osx?
...oaded.
Historically, the differences were more significant. In Mac OS X 10.0, there was no way to dynamically load libraries. A set of dyld APIs (e.g. NSCreateObjectFileImageFromFile, NSLinkModule) were introduced with 10.1 to load and unload bundles, but they didn't work for dylibs. A dlopen co...
Resolving LNK4098: defaultlib 'MSVCRT' conflicts with
...where. The CRT DLL used by your program has a different name (like msvcrt90.dll).
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MySQL error: key specification without a key length
...fied implicitly within a bracket right after its declaration, i.e VARCHAR(200) will limit it to 200 characters long only.
Sometimes, even though you don’t use TEXT or BLOB related type in your table, the Error 1170 may also appear. It happens in a situation such as when you specify VARCHAR column...
Limit labels number on Chart.js line chart
...type: 'time',
ticks: {
autoSkip: true,
maxTicksLimit: 20
}
}]
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SQL NVARCHAR and VARCHAR Limits
... selection criteria the string containing the dynamic SQL is growing over 4000 chars. Now, I understand that there is a 4000 max set for NVARCHAR(MAX) , but looking at the executed SQL in Server Profiler for the statement
...
XSD: What is the difference between xs:integer and xs:int?
...
110
The difference is the following:
xs:int is a signed 32-bit integer.
xs:integer is an integer un...