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How do I remove code duplication between similar const and non-const member functions?
... C &>(*this).get());
}
char c;
};
The two casts and function call may be ugly but it's correct. Meyers has a thorough explanation why.
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Hidden Features of VB.NET?
... It looks like someone could still create their own rule by calling the Rule constructor directly? If so, and if you wanted to stop this, could you declare the constructor as "Friend" in your library?
– Joel Coehoorn
Oct 7 '08 at 14:40
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What is the difference between lock and Mutex?
...hine.
bool firstInstance;
Mutex mutex = new Mutex(false, @"Local\DASHBOARD_MAIN_APPLICATION", out firstInstance);
if (!firstInstance)
{
//another copy of this application running
}
else
{
//run main application loop here.
}
// Refer to the mutex down here so garbage collection doesn't chu...
How do I make CMake output into a 'bin' dir?
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How to make it apply to all configurations at once?
– emlai
May 23 '15 at 21:24
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What is the easiest way to push an element to the beginning of the array?
...the top of the page could be better formatted, it is very difficult to visually scan as it is. I found it because I knew the method name I was looking for :)
– mu is too short
May 22 '11 at 6:45
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Get keys from HashMap in Java
...HashMap contains more than one key. You can use keySet() to get the set of all keys.
team1.put("foo", 1);
team1.put("bar", 2);
will store 1 with key "foo" and 2 with key "bar". To iterate over all the keys:
for ( String key : team1.keySet() ) {
System.out.println( key );
}
will print "foo"...
How to get last items of a list in Python?
...
a negative index will count from the end of the list, so:
num_list[-9:]
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Email address validation using ASP.NET MVC data type attributes
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Validating email addresses with regex is usually a terrible idea... but if you must, there's an excellent reference here.. regular-expressions.info/email.html
– Molomby
Jul 23 '14 at 4:18
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how to check if a file is a directory or regular file in python? [duplicate]
... pathname = os.path.join(top, f)
mode = os.stat(pathname)[ST_MODE]
if S_ISDIR(mode):
# It's a directory, recurse into it
walktree(pathname, callback)
elif S_ISREG(mode):
# It's a file, call the callback function
callback(...
error C2872: “count”: 不明确的符号 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ram Files\Microsoft Visual Studio 11.0\VC\INCLUDE\xutility(3251) : iterator_traits<_Iter>::difference_type std::count(_InIt,_InIt,const _Ty &)”
conflict.cpp(12) : error C2872: “count”: 不明确的符号 可能是“conflict.cpp(4) : int count” 或 “C:\Program Files\Microsoft Visual S...