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Pointer vs. Reference
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Excelent point regarding a pointer being NULL. If you have a pointer parameter then you must either check explicitly that it is not NULL, or search all usages of the function to be sure that it is never NULL. This effort is...
C++ sorting and keeping track of indexes
...f samples in ascending order, but I also want to remember the original indexes of the new samples.
15 Answers
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Secure hash and salt for PHP passwords
...gth of a password. If your users want a sentence with supercalifragilisticexpialidocious in it, don't prevent them from using it.
Don't strip or escape HTML and special characters in the password.
Never store your user's password in plain-text.
Never email a password to your user except when they ha...
Does R have an assert statement as in python?
...t checks if something is true and if not prints a given error message and exits
3 Answers
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How to create a printable Twitter-Bootstrap page
...ing.
It could be a separate stylesheet:
<link rel="stylesheet" type="text/css" media="print" href="print.css">
or one you share for all devices:
<link rel="stylesheet" type="text/css" href="bootstrap.min.css"> # Note there's no media attribute
Then, you can write your styles for pr...
Rails: How do I create a default value for attributes in Rails activerecord's model? [duplicate]
...it is already set to false (because false and nil are both as falsy). I.e. x ||= true is equivalent to x = true. You can see how that might pose a problem. It only happens with booleans because no other datatype in Ruby has a falsy value.
– Amadan
Jun 10 '13 at...
What do people think of the fossil DVCS? [closed]
... an sQLite database is arguably safer than any other approach. See link text for some of the advantages of using a transactional database to store a repository. As for bloat: The entire thing is in a single self-contained executable which seems to disprove that concern.
Full disclosure: I am th...
How to quit scala 2.11.0 REPL?
In the last version of scala (2.10.3) REPL, I can type exit to quit from REPL. However, in Scala 2.11.0 this doesn't work.
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Algorithm to find top 10 search terms
... the problem at hand which I picked from the above:
Manku, Motwani - "Approximate Frequency Counts over Data Streams" [pdf]
By the way, Motwani, of Stanford, (edit) was an author of the very important "Randomized Algorithms" book. The 11th chapter of this book deals with this problem. Edit: Sorry, ...
Seeking clarification on apparent contradictions regarding weakly typed languages
I think I understand strong typing , but every time I look for examples for what is weak typing I end up finding examples of programming languages that simply coerce/convert types automatically.
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