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What is difference between instantiating an object using new vs. without
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123
The line:
Time t (12, 0, 0);
... allocates a variable of type Time in local scope, generally...
How to implement static class member functions in *.cpp file?
...de <iostream>
#include "test.hpp"
int A::a(int i) {
return i + 2;
}
using namespace std;
int main() {
cout << A::a(4) << endl;
}
They're not always inline, no, but the compiler can make them.
s...
What does android:layout_weight mean?
...
OneCricketeer
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answered Oct 22 '10 at 10:55
FloFlo
...
Precise Financial Calculation in JavaScript. What Are the Gotchas?
... floating-point. Therefore it is generally recommended to handle money as 2550 cents instead of 25.50 dollars.
Consider that in JavaScript:
var result = 1.0 + 2.0; // (result === 3.0) returns true
But:
var result = 0.1 + 0.2; // (result === 0.3) returns false
The expression 0.1 + 0...
UPDATE multiple tables in MySQL using LEFT JOIN
...
UPDATE t1
LEFT JOIN
t2
ON t2.id = t1.id
SET t1.col1 = newvalue
WHERE t2.id IS NULL
Note that for a SELECT it would be more efficient to use NOT IN / NOT EXISTS syntax:
SELECT t1.*
FROM t1
WHERE t1.id NOT IN
(
S...
The written versions of the logical operators
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112
They originated in C in the header <iso646.h>. At the time there were keyboards that could...
When should I use double or single quotes in JavaScript?
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REST response code for invalid data
...either change the Reason Phrase or include a body to explain the error.
412 - Precondition failed is used for conditional requests when using last-modified date and ETags.
403 - Forbidden is used when the server wishes to prevent access to a resource.
The only other choice that is possible is 422...