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Why do you have to link the math library in C?
...es libm, so if you compile a C++ program with GCC (g++), you will automatically get libm linked in.
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Tablet or Phone - Android
.../screen.xml (assuming res/layout-sw600dp/ contains your layout files for small tablets like the Nexus 7)
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="screen_type">7-inch-tablet</string>
</resources>
File res/values-sw720dp/screen.xml (assuming...
Split list into smaller lists (split in half)
I am looking for a way to easily split a python list in half.
17 Answers
17
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Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
Here is a function I was working on to programmatically lighten or darken a hex color by a specific amount. Just pass in a string like "3F6D2A" for the color ( col ) and a base10 integer ( amt ) for the amount to lighten or darken. To darken, pass in a negative number (i.e. -20 ).
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Convert float to double without losing precision
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It's not that you're actually getting extra precision - it's that the float didn't accurately represent the number you were aiming for originally. The double is representing the original float accurately; toString is showing the "extra" data which wa...
How do I convert a String object into a Hash object?
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The string created by calling Hash#inspect can be turned back into a hash by calling eval on it. However, this requires the same to be true of all of the objects in the hash.
If I start with the hash {:a => Object.new}, then its string represen...
Are inline virtual functions really a non-sense?
... excerpt from the excellent C++ faq:
"The only time an inline virtual call
can be inlined is when the compiler
knows the "exact class" of the object
which is the target of the virtual
function call. This can happen only
when the compiler has an actual object
rather than a pointer or ...
Why is “while ( !feof (file) )” always wrong?
...ol. The environment truly exists "concurrently" with your program. As with all things concurrent, questions about the "current state" don't make sense: There is no concept of "simultaneity" across concurrent events. Many properties of state simply don't exist concurrently.
Let me make this more prec...
Most efficient method to groupby on an array of objects
What is the most efficient way to groupby objects in an array?
43 Answers
43
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Do I need to disable NSLog before release Application?
... get debug messages. When you're ready to release a beta or final release, all those DLog lines automatically become empty and nothing gets emitted. This way there's no manual setting of variables or commenting of NSLogs required. Picking your build target takes care of it.
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