大约有 15,467 项符合查询结果（耗时：0.0244秒） [XML]
Detecting endianness programmatically in a C++ program
...
I've tested this, and in both gcc 4.0.1 and gcc 4.4.1 the result of this function can be determined at compile time and treated as a constant. This means that the compiler will drop if branches that depend solely on the result of...
Get top 1 row of each group
I have a table which I want to get the latest entry for each group. Here's the table:
20 Answers
...
How to read from a file or STDIN in Bash?
...
Here is the simplest way:
#!/bin/sh
cat -
Usage:
$ echo test | sh my_script.sh
test
To assign stdin to the variable, you may use: STDIN=$(cat -) or just simply STDIN=$(cat) as operator is not necessary (as per @mklement0 comment).
To parse each line from the standard input, t...
Absolute vs relative URLs
...to:
switch to another scheme (e.g. http -> https)
switch domain names (test.yourdomain.com -> yourdomain.com)
In the first example what will happen is that you will get warnings about unsafe content being requested on the page. Because all your URLs are hardcoded to use http(://yourdomain.co...
Why does InetAddress.isReachable return false, when I can ping the IP address?
... many cases. You can scroll to the bottom to see my alternative for simply testing if you're online and capable of resolving external hosts (i.e. google.com) ... Which generally seems to work on *NIX machines.
The issue
There is alot of chatter about this :
Here are other, similar questions :...
Count rows with not empty value
...rly complex, or fail in particular edge cases that I've enumerated in this test sheet:
Google Spreadsheet - CountA Test - Demo
For why CountA works the wonky way it does, see my answer here
share
|
...
How to split a string in Java
...tring[] parts = string.split(Pattern.quote(".")); // Split on period.
To test beforehand if the string contains certain character(s), just use String#contains().
if (string.contains("-")) {
// Split it.
} else {
throw new IllegalArgumentException("String " + string + " does not contain -"...
Zipping streams using JDK8 with lambda (java.util.stream.Streams.zip)
...l = streamA.isParallel() || streamB.isParallel();
return iteratorToFiniteStream(iteratorC, parallel);
}
public static <T> Stream<T> iteratorToFiniteStream(Iterator<T> iterator, boolean parallel) {
final Iterable<T> iterable = () -> iterator;
return StreamSuppo...
Is it possible to print a variable's type in standard C++?
...lt; '\n';
and for me outputs:
int const
<disclaimer> I have not tested this on MSVC. </disclaimer> But I welcome feedback from those who do.
The C++11 Solution
I am using __cxa_demangle for non-MSVC platforms as recommend by ipapadop in his answer to demangle types. But on MSVC ...
How can I scale an entire web page with CSS?
...
I've tested Opera 10b2 and it doesn't seem to support it. Firefox nightly behaves oddly (zoomed fragment disappears). IE5/6 are buggy. Works fine in WebKit only.
– Kornel
Jul 22 '09 at 11:39
...