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What is the best way to concatenate two vectors?
...uestion or not, but can this answer be improved when taking move semantics into account? Is there some way I can expect/instruct the compiler to do a single memory move instead of looping over all elements?
– Broes De Cat
Apr 26 '15 at 21:33
...
Android: why is there no maxHeight for a View?
...ontent but having a maxHeight so it would stop expanding after a certain point and start scrolling. I just simply overrode the onMeasure method in ScrollView.
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
heightMeasureSpec = MeasureSpec.makeMeasureSpec(300, ...
How to find out element position in slice?
...agree with Evan. Additional comment: it's more idiomatic to return just an int where -1 indicates "not found" (like bytes.IndexByte)
– Krzysztof Kowalczyk
Nov 29 '11 at 8:22
3
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How to implement a ViewPager with different Fragments / Layouts
... super(fm);
}
@Override
public Fragment getItem(int pos) {
switch(pos) {
case 0: return FirstFragment.newInstance("FirstFragment, Instance 1");
case 1: return SecondFragment.newInstance("SecondFragment, Instance 1");
case 2:...
Rails migration for change column
...l situations where the existing data, let's say a String can be implicitly converted into the new datatype, let's say Date.
In this situation, it's helpful to know you can create migrations with data conversions. Personally, I like putting these in my model file, and then removing them after all d...
Why unsigned integer is not available in PostgreSQL?
I came across this post ( What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL? ) and realized that PostgreSQL does not support unsigned integer.
...
How do I get the first element from an IEnumerable in .net?
...e enumerable contains more than one item.
Edit: Thanks Marc Gravell for pointing out that I need to dispose of my IEnumerator object after using it - I've edited the non-LINQ example to display the using keyword to implement this pattern.
...
Undefined, unspecified and implementation-defined behavior
...n the program!
Let's look at a classic example:
#include <iostream>
int main()
{
char* p = "hello!\n"; // yes I know, deprecated conversion
p[0] = 'y';
p[5] = 'w';
std::cout << p;
}
The variable p points to the string literal "hello!\n", and the two assignments below ...
To ARC or not to ARC? What are the pros and cons? [closed]
...W, make sure to use of Xcode to do the transition (Edit > Refactor > Convert to Objective-C ARC). During the process Xcode would do a lot of validation to make sure your code would work and figure out any codes that violates those designing guidelines.
– ZhangChn
...
How to simplify a null-safe compareTo() implementation?
... .thenComparing(Metadata::getValue, nullSafeStringComparator);
public int compareTo(Metadata that) {
return metadataComparator.compare(this, that);
}
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