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C++ preprocessor __VA_ARGS__ number of arguments
...
This is actually compiler dependent, and not supported by any standard.
Here however you have a macro implementation that does the count:
#define PP_NARG(...) \
PP_NARG_(__VA_ARGS__,PP_RSEQ_N())
#define PP_NARG_(...) \
PP_ARG_N(__VA_ARGS__)
#...
What are rvalues, lvalues, xvalues, glvalues, and prvalues?
... began with the move semantics. Once we have expressions that can be moved and not copied, suddenly easy to grasp rules demanded distinction between expressions that can be moved, and in which direction.
From what I guess based on the draft, the r/l value distinction stays the same, only in the con...
Separate REST JSON API server and client? [closed]
...
At Boundless, we've gone deep with option #2 and rolled it out to thousands of students. Our server is a JSON REST API (Scala + MongoDB), and all of our client code is served straight out of CloudFront (ie: www.boundless.com is just an alias for CloudFront).
Pros:
C...
How do I verify that an Android apk is signed with a release certificate?
How can I check that an Android apk is signed with a release and not debug cert?
5 Answers
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How do I set a background-color for the width of text, not the width of the entire element, using CS
...ne element, such as a <span>.
<h1><span>The Last Will and Testament of Eric Jones</span></h1>
And then apply the background color on the inline element.
h1 {
text-align: center;
}
h1 span {
background-color: green;
}
An inline element is as big as its...
How and/or why is merging in Git better than in SVN?
... is better in a DVCS than in Subversion was largely based on how branching and merge worked in Subversion a while ago. Subversion prior to 1.5.0 didn't store any information about when branches were merged, thus when you wanted to merge you had to specify which range of revisions that had to be merg...
How can I suppress all output from a command using Bash?
...
The following sends standard output to the null device (bit bucket).
scriptname >/dev/null
And if you also want error messages to be sent there, use one of (the first may not work in all shells):
scriptname &>/dev/null
scriptname >...
How do I make a redirect in PHP?
...it(): The Daily WTF
Absolute or relative URL
Since June 2014 both absolute and relative URLs can be used. See RFC 7231 which had replaced the old RFC 2616, where only absolute URLs were allowed.
Status Codes
PHP's "Location"-header still uses the HTTP 302-redirect code, this is a "temporary" redirec...
Unable to load DLL 'SQLite.Interop.dll'
...figured in NuGet with only the Sqlite core package.). The project compiles and copies all the Sqlite dll-s except the 'SQLite.Interop.dll' (both x86 and x64 folder).
The solution was very simple: just add the Sqlite.Core package as a dependency (with NuGet) to the project you are building/running a...
How to create a new java.io.File in memory?
...tion then, is “it’s not possible”. This answer tries to be pragmatic and tell what the user could do instead. Andreas’ answer is clearly more thorough and a better (attempt at an) answer.
– haraldK
Jan 17 at 12:11
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