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Unmangling the result of std::type_info::name
...o versions are given: one with C++11 features and another one with only C++98 features.
In file type.hpp
#ifndef TYPE_HPP
#define TYPE_HPP
#include <string>
#include <typeinfo>
std::string demangle(const char* name);
template <class T>
std::string type(const T& t) {
...
应用工具使用指导 · App Inventor 2 中文网
... App 时识别复制的口令
用户在别处复制了「fun123口令:ABCD」这样的文字，打开 App 后自动识别并填入。
读剪贴板要等 App 完全显示后再读，所以用计时器延后 500 毫秒（计时器间隔 500，一开始启用）：
when 计时器1.Timer(...
Is REST DELETE really idempotent?
...ot all-effects or responses. If you do a DELETE http://example.com/account/123 then the effect is that account 123 is now deleted from the server. That is the one and only effect, the one and only change to the state of the server. Now lets say you do the same DELETE http://example.com/account/123 ...
How to revert (Roll Back) a checkin in TFS 2010
...
123
You have two options for rolling back (reverting) a changeset in Team Foundation Server 2010 V...
Is std::unique_ptr required to know the full definition of T?
...
@Mehrdad: This decision was made for C++98, which is before my time. However I believe the decision came from a concern about implementability, and the difficulty of specification (i.e. exactly which parts of a container do or do not require a complete type). Even...
Why catch and rethrow an exception in C#?
...ple, in VB you can do
Try
..
Catch Ex As MyException When Ex.ErrorCode = 123
..
End Try
...which would not handle MyExceptions with different ErrorCode values. In C# prior to v6, you would have to catch and re-throw the MyException if the ErrorCode was not 123:
try
{
...
}
catch(MyExcepti...
Download Github pull request as unified diff
...
Somewhat related, to let git download pull request 123 and patch it into mylocalbranch locally, run:
git checkout -b mylocalbranch
git pull origin pull/921/head
share
|
imp...
Tool to convert Python code to be PEP8 compliant
...ff --in-place
# the lines which changed since a specific commit `git diff 98f51f`
pep8radius 98f51f --diff
Basically pep8radius is applying autopep8 to lines in the output of git/hg diff (from the last shared commit).
This script currently works with git and hg, if your using something else and ...
Normal arguments vs. keyword arguments
...ords in the front. They can be in any order!
func(foo="bar", baz=5, hello=123)
func(baz=5, foo="bar", hello=123)
You should also know that if you use default arguments and neglect to insert the keywords, then the order will then matter!
def func(foo=1, baz=2, hello=3): ...
func("bar", 5, 123)
...
round() for float in C++
...
There's no round() in the C++98 standard library. You can write one yourself though. The following is an implementation of round-half-up:
double round(double d)
{
return floor(d + 0.5);
}
The probable reason there is no round function in the C++98 s...