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What is a Context Free Grammar?
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112
A context free grammar is a grammar which satisfies certain properties. In computer science, g...
Structure padding and packing
...ted by compiler: for alignment of b */
int b;
char c;
char gap_1[3]; /* -"-: for alignment of the whole struct in an array */
} x;
Packing, on the other hand prevents compiler from doing padding - this has to be explicitly requested - under GCC it's __attribute__((__packed__)), so the ...
What is the Objective-C equivalent for “toString()”, for use with NSLog?
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edited Aug 27 '12 at 19:01
answered Jul 9 '09 at 15:49
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PostgreSQL delete all content
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Use the TRUNCATE TABLE command.
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Removing multiple keys from a dictionary safely
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14 Answers
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How can I keep Bootstrap popovers alive while being hovered?
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18 Answers
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How to generate random number with the specific length in python
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189
To get a random 3-digit number:
from random import randint
randint(100, 999) # randint is in...
How do the PHP equality (== double equals) and identity (=== triple equals) comparison operators dif
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11 Answers
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Convert an enum to List
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180
Use Enum's static method, GetNames. It returns a string[], like so:
Enum.GetNames(typeof(Data...
How to create and handle composite primary key in JPA
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edited Jun 28 '16 at 11:18
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