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Guards vs. if-then-else vs. cases in Haskell
I have three functions that find the nth element of a list:
3 Answers
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Random / noise functions for GLSL
...er vendors don't usually bother to implement noiseX in GLSL, I'm looking for a "graphics randomization swiss army knife" utility function set, preferably optimised to use within GPU shaders. I prefer GLSL, but code any language will do for me, I'm ok with translating it on my own to GLSL.
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What is this crazy C++11 syntax ==> struct : bar {} foo {};?
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First, we'll take a bog-standard abstract UDT (User-Defined Type):
struct foo { virtual void f() = 0; }; // normal abstract type
foo obj;
// error: cannot declare variable 'obj' to be of abstract type 'foo'
Let's also reca...
Validate decimal numbers in JavaScript - IsNumeric()
What's the cleanest, most effective way to validate decimal numbers in JavaScript?
49 Answers
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Bomb dropping algorithm
I have an n x m matrix consisting of non-negative integers. For example:
32 Answers
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Convert char to int in C and C++
... (int)a;
/* note that the int cast is not necessary -- int ia = a would suffice */
to convert the character '0' -> 0, '1' -> 1, etc, you can write
char a = '4';
int ia = a - '0';
/* check here if ia is bounded by 0 and 9 */
Explanation:
a - '0' is equivalent to ((int)a) - ((int)'0'), whi...
Can git operate in “silent mode”?
Is it possible to execute any git command in "silent" mode? For instance, can i say " git push origin " and see nothing displayed on the screen?
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Can I store the .git folder outside the files I want tracked?
... to use git as a backup system. So let's say I have a directory ./backup/myfiles and I want to back that up using git. To keep things clean I don't want to have a .git directory in the myfiles folder, so I thought I could create ./backup/git_repos/myfiles. From looking at the git docs, I've tried do...
Is there any difference between GROUP BY and DISTINCT
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MusiGenesis' response is functionally the correct one with regard to your question as stated; the SQL Server is smart enough to realize that if you are using "Group By" and not using any aggregate functions, then what you actually mean is "Distinct" ...
List vs tuple, when to use each? [duplicate]
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There's a strong culture of tuples being for heterogeneous collections, similar to what you'd use structs for in C, and lists being for homogeneous collections, similar to what you'd use arrays for. But I've never quite squared this with the mutabili...