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Getting a structural type with an anonymous class's methods from a macro
...hat class that's statically typed as a structural type with those methods, etc. This is possible with the macro system in 2.10.0, and the type member part is extremely easy:
...
How to correctly implement custom iterators and const_iterators?
...
Choose type of iterator which fits your container: input, output, forward etc.
Use base iterator classes from standard library. For example, std::iterator with random_access_iterator_tag.These base classes define all type definitions required by STL and do other work.
To avoid code duplication iter...
Do I cast the result of malloc?
... if it's not you who frees the memory but maybe a C library you are using, etc. Many possible problems without any gain.
– quinmars
Mar 4 '09 at 8:53
88
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ActiveRecord: size vs count
...of new messages, total elements when only a page is going to be displayed, etc.
length
Loads the required data, i.e. the query as required, and then just counts it. The way to go if you are using the data.
Example: Summary of a fully loaded table, titles of displayed data, etc.
size
It checks i...
What's the difference between design patterns and architectural patterns?
...
It requires a detailed explanation but I will try to sketch the differences to best of my knowledge.
Patterns are distilled commonality that you find in programs. It allows us to deconstruct a large complex structure and build using simple parts. It provides a general solution f...
Create tap-able “links” in the NSAttributedString of a UILabel?
...xtView instead of a UILabel, then it is easy. Standard URLs, phone numbers etc will be automatically detected (and be clickable).
However, if you need custom detection, that is, if you want to be able to call any custom method after a user clicks on a particular word, you need to use NSAttributedS...
How to use the 'main' parameter in package.json?
...s "main"
{...}
... // many others such as function, properties, etc.
}
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How to prevent long words from breaking my div?
... but display:table on other elements is fine. It will be as quirky (and stretchy) as old-school tables:
div.breaking {
display: table-cell;
}
overflow and white-space: pre-wrap answers below are good too.
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Fastest sort of fixed length 6 int array
...s (e.g. CUDA - being branchless there are no problems with warp divergence etc).
See also: Fast algorithm implementation to sort very small list
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How to get image height and width using java?
...fix is method that returns extension of path without "." so e.g.: png, jpg etc.
Example implementation is:
private String getFileSuffix(final String path) {
String result = null;
if (path != null) {
result = "";
if (path.lastIndexOf('.') != -1) {
result = path.su...