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Why should a function have only one exit-point? [closed]
... the opportunity to perform some postprocessing under the function's local Error label, which is impossible with multiple returns.
– Ant_222
Oct 7 '15 at 14:03
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In C, do braces act as a stack frame?
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answered May 3 '10 at 20:05
user19666user19666
3122 bronze badges
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How do I set a cookie on HttpClient's HttpRequestMessage
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I've been chasing for several days an error in which requests sent with SendAsync did not send the cookie header; this helped me realize that, unless you set UseCookies = false in the Handler, it will not only use the CookieContainer, but also silently ignore any...
Move capture in lambda
... better and even more generic solution because the compiler will catch the error.
Emulating generalized lambda capture in C++11
Here's one more idea, on how to implement generalized lambda capture. The use of the function capture() (whose implementation is found further down) is as follows:
#inc...
if (key in object) or if(object.hasOwnProperty(key)
Do the following two statements produce the same output? Is there any reason to prefer one way to the other?
7 Answers
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instantiate a class from a variable in PHP?
...com\company\lib;
//Works fine
$i = new MyClass();
$cname = 'MyClass';
//Errors
//$i = new $cname;
//Works fine
$cname = "com\\company\\lib\\".$cname;
$i = new $cname;
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How to tell if JRE or JDK is installed
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answered Feb 14 '19 at 17:05
Shayan AmaniShayan Amani
3,6282929 silver badges3434 bronze badges
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Create Directory if it doesn't exist with Ruby
...s. Assuming foo does not exist, you will receive no such file or directory error for:
Dir.mkdir 'foo/bar'
# => Errno::ENOENT: No such file or directory - 'foo/bar'
To create nested directories at once, FileUtils is needed:
require 'fileutils'
FileUtils.mkdir_p 'foo/bar'
# => ["foo/bar"]
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MySQL case insensitive select
...h wrong.
– phil294
Mar 14 '18 at 23:05
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SELECT INTO Variable in MySQL DECLARE causes syntax error?
...ver, if you put that same query in MySql Workbench, it will throw a syntax error. I don't know why they would be different, but they are. To work around the problem in MySql Workbench, you can rewrite the query like this:
SELECT @myvar:=myvalue
FROM mytable
WHERE anothervalue = 1;
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