大约有 19,000 项符合查询结果（耗时：0.0388秒） [XML]
Why are Perl 5's function prototypes bad?
...ficult to call functions using anything other than the
strictly prescribed form.
See Prototypes in perlsub for all the gory details.
share
|
improve this answer
|
follow
...
Return type of '?:' (ternary conditional operator)
...r one can be converted but the conversion is ambiguous, the program is ill-formed. If neither can be converted, the operands are left unchanged and further checking is performed as described below. If exactly one conversion is possible, that conversion is applied to the chosen operand and the conver...
Passing arrays as parameters in bash
...
N.B.: It is worth mentioning that array initialization using this bracket form initializes the new array according to the IFS or Internal Field Separator which is by default tab, newline and space. in that case, since it used [@] notation each element is seen by itself as if he was quoted (contrary...
std::wstring VS std::string
...
On Linux? Almost never (§).
On Windows? Almost always (§).
On cross-platform code? Depends on your toolkit...
(§) : unless you use a toolkit/framework saying otherwise
Can std::string hold all the ASCII character set including special characters?
Notice: A std::string is suitable for holding a...
Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
Every time I mention slow performance of C++ standard library iostreams, I get met with a wave of disbelief. Yet I have profiler results showing large amounts of time spent in iostream library code (full compiler optimizations), and switching from iostreams to OS-specific I/O APIs and custom buffer...
How do I return the response from an asynchronous call?
...planned to do. Once your friend calls you back, you are dealing with the information he gave to you.
That's exactly what's happening when you do an Ajax request.
findItem(function(item) {
// Do something with the item
});
doSomethingElse();
Instead of waiting for the response, the execution con...
Why does the MongoDB Java driver use a random number generator in a conditional?
...t programming at work.
That line is gratuitously convoluted. The general form
a? true : b
for boolean a, b is equivalent to the simple
a || b
The surrounding negation and excessive parentheses convolute things further. Keeping in mind De Morgan's laws it is a trivial observation that this pie...
What is the maximum length of a URL in different browsers?
...LD be able to handle URIs of
unbounded length if they provide
GET-based forms that could generate
such URIs. A server SHOULD return
414 (Request-URI Too Long) status if a
URI is longer than the server can
handle (see section 10.4.15).
That RFC has been obsoleted by RFC7230 which is a refre...
What are the undocumented features and limitations of the Windows FINDSTR command?
...
Preface
Much of the information in this answer has been gathered based on experiments run on a Vista machine. Unless explicitly stated otherwise, I have not confirmed whether the information applies to other Windows versions.
FINDSTR output
The do...
What's the difference between an inverted index and a plain old index?
...ere. Otherwise the two types are identical, it's just a question of what information you have, and as a result what information you're trying to find.
To address your inquiry, I don't think there's actually a way to know why the use is what it is today. The only reason it's important to define whic...