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Compiling with g++ using multiple cores
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There is no such flag, and having one runs against the Unix philosophy of having each tool perform just one function and perform it well. Spawning compiler processes is conceptually the job of the build system. What you are probably looking for is the -j (job...
MIN and MAX in C
...; \
__typeof__ (b) _b = (b); \
_a > _b ? _a : _b; })
Everyone says "oh I know about double evaluation, it's no problem" and a few months down the road, you'll be debugging the silliest problems for hours on end.
Note the use of __typeof__ instead of typeof:
If you are writing a...
What is the difference between compile and link function in angularjs
Can someone explain in simple terms?
7 Answers
7
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Random data in Unit Tests?
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This kind of testing is called a Monkey test. When done right, it can smoke out bugs from the really dark corners.
To address your concerns about reproducibility: the right way to approach this, is to record the failed test entries, generate a unit test, which probes for the ...
What is the most frequent concurrency issue you've encountered in Java? [closed]
...possible issues but also in what issues are most common. So, please leave one specific answer of a Java concurrency bug per comment and vote up if you see one you've encountered.
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Unnecessary curly braces in C++?
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One possible purpose is to control variable scope. And since variables with automatic storage are destroyed when they go out of scope, this can also enable a destructor to be called earlier than it otherwise would.
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What is the difference between tree depth and height?
... question from algorithms theory.
The difference between them is that in one case you count number of nodes and in other number of edges on the shortest path between root and concrete node.
Which is which?
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how to use “AND”, “OR” for RewriteCond on Apache?
...u'll quickly spot the defines used to name these flags:
#define CONDFLAG_NONE 1<<0
#define CONDFLAG_NOCASE 1<<1
#define CONDFLAG_NOTMATCH 1<<2
#define CONDFLAG_ORNEXT 1<<3
#define CONDFLAG_NOVARY 1<<4
and se...
How can I know which parts in the code are never used?
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There are two varieties of unused code:
the local one, that is, in some functions some paths or variables are unused (or used but in no meaningful way, like written but never read)
the global one: functions that are never called, global objects that are never accessed
For ...
How do I find Waldo with Mathematica?
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I've found Waldo!
How I've done it
First, I'm filtering out all colours that aren't red
waldo = Import["http://www.findwaldo.com/fankit/graphics/IntlManOfLiterature/Scenes/DepartmentStore.jpg"];
red = Fold[ImageSubtract, #[[1]], Rest[#]] &@ColorSe...