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Which data type for latitude and longitude?
...pe point - combines (x,y) which can be your lat / long. Occupies 16 bytes: 2 float8 numbers internally.
Or make it two columns of type float (= float8 or double precision). 8 bytes each.
Or real (= float4) if additional precision is not needed. 4 bytes each.
Or even numeric if you need absolute pre...
Why do we need argc while there is always a null at the end of argv?
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Yes, argv[argc]==NULL is guaranteed. See C11 5.1.2.2.1 Program startup (my emphasis)
If they are declared, the parameters to the main function shall obey
the following constraints:
The value of argc shall be nonnegative.
argv[argc] shall be a null
pointer.
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Will using goto leak variables?
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210
Warning: This answer pertains to C++ only; the rules are quite different in C.
Won't x b...
Fixed point vs Floating point number
...lled the exponent). So a floating point number that took up 10 digits with 2 digits reserved for the exponent might represent a largest value of 9.9999999e+50 and a smallest non-zero value of 0.0000001e-49.
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How to check if a table contains an element in Lua?
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edited Feb 11 '13 at 2:07
g33kz0r
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answered ...
Java Regex Capturing Groups
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255
The issue you're having is with the type of quantifier. You're using a greedy quantifier in yo...
Invoking a static method using reflection
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298
// String.class here is the parameter type, that might not be the case with you
Method method ...
How to sort a list in Scala by two fields?
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217
rows.sortBy(r => (r.lastName, r.firstName))
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Will Dart support the use of existing JavaScript libraries?
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edited Dec 8 '13 at 8:24
answered Jan 6 '12 at 5:24
Set...