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Convert a character digit to the corresponding integer in C
...o check isdigit(c) is true first. Note that you cannot completely portably do the same for letters, for example:
char c = 'b';
int x = c - 'a'; // x is now not necessarily 1
The standard guarantees that the char values for the digits '0' to '9' are contiguous, but makes no guarantees for other ch...
AngularJS does not send hidden field value
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You cannot use double binding with hidden field.
The solution is to use brackets :
<input type="hidden" name="someData" value="{{data}}" /> {{data}}
EDIT : See this thread on github : https://github.com/angular/angular.js/pull/2574...
Capturing Ctrl-c in ruby
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The problem is that when a Ruby program ends, it does so by raising SystemExit. When a control-C comes in, it raises Interrupt. Since both SystemExit and Interrupt derive from Exception, your exception handling is stopping the exit or interrupt in its tracks. Here's the ...
Displaying files (e.g. images) stored in Google Drive on a website
...er viewing it is logged in to Google (Drive?). In an anonymous browsing window, I received a login page instead of the (publicly shared) image I requested.
– scy
Feb 21 '13 at 13:34
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Embedding DLLs in a compiled executable
...ly have one file to distribute)? If it is possible, how would one go about doing it?
16 Answers
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How to convert a factor to integer\numeric without loss of information?
...es are mostly unique, there won't be much difference in speed. However you do the conversion, this operation is unlikely to be the bottleneck in your code, so don't worry too much about it.
Some timings
library(microbenchmark)
microbenchmark(
as.numeric(levels(f))[f],
as.numeric(levels(f)[f]...
How to create a unique index on a NULL column?
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Pretty sure you can't do that, as it violates the purpose of uniques.
However, this person seems to have a decent work around:
http://sqlservercodebook.blogspot.com/2008/04/multiple-null-values-in-unique-index-in.html
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What does Provider in JAX-RS mean?
...xplain to me what a JAX-RS Provider is and what ‘@Provider’ annotation does? I have been reading documentation but I cant get it.
If there are resource classes that service the incoming requests, what do Providers do? How are they different from singleton resource classes when I create a persi...
How to store arbitrary data for some HTML tags
...support, since the only problem this causes is failure to validate, and it doesn't break IE. See T.J. Crowler's answer here: stackoverflow.com/questions/1923278/…
– Chris
Dec 28 '11 at 19:29
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How to fix Python indentation
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Excellent! So all that Debian and Ubuntu users need do is to apt-get that package. Alternatively, the script is also at svn.python.org/view/python/trunk/Tools/scripts/… .
– Alex Martelli
Jun 21 '09 at 20:52
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