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Results tagged with c++
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user 15094
C++ is a statically typed, free-form, multi-paradigm, compiled, general-purpose programming language. This tag should be used for any question which requires knowledge or expertise with the C++ programming language. This is a general tag which is used for any of the C++ language standards (C++98, C++11, C++17, etc.). The question should identify the compiler being used, the operating system, and which of the C++ standards is being targeted.
13
votes
Accepted
Disk Scheduling Algorithm
You are using C++, but overall, your code looks like C. There are numerous ways to improve your code readability by replacing C standard features by C++ ones. I will give some examples.
using namespa …
- 20k
5
votes
Adding two numbers as strings from a textfile
Some basic C++ advice:
Don't use using namespace std;. It leads to namespace pollution: it you use another library, you may import names in the global namespace that may clash with those in the std …
- 20k
5
votes
Accepted
Entity management design & smart pointers
The fact that AddEntity leaves behind a unique_ptr to a possibly destroyed entity bothers me (right now, moving your entity does not "destroy" it, but you might add destructible components later). In …
- 20k
7
votes
Given n numbers, find out the least k numbers from them
There are several things that you could improve, especially with regards to containers usage:
If you can use C++11 or a more recent version of the C++ standard, then you can use an initializer list …
- 20k
12
votes
2
answers
4k
views
Generic absolute value function
I wanted to write a generic abs function that would correctly work for every type. Basically, I wanted to use the following algorithm:
If the type is a built-in integer, use std::abs from <cstdlib>. …
- 20k
10
votes
Making C++11 range-based for loops a bit more useful
You can use braces to return from your functions. That way, you won't have to repeat long and cumbersome types (DRY, as much as possible). For example, ConditionalRange::end:
iterator_type end() cons …
- 20k
4
votes
Gyrometer/accelerometer sensor fusion with sigmoid transfer function
In addition to what Jerry Coffin said, I would suggest renaming active_float and anneal_float to active and anneal. Since you are using C++, you don't need to have different names for the same functio …
- 20k
8
votes
Accepted
static_new and static_delete
I still have trouble understanding how the whole works, but there are still some small things that could be improved:
In your comments, you say that A is an integer type used as a bitmask. The safes …
- 20k
4
votes
Lexer code in C++
Some things you can improve:
The initialization of reserved_words is far too complex. You can use an initializer it to simplify it:
static const std::unordered_map<std::wstring, LexedFile::Token> r …
- 20k
5
votes
Accepted
AnySetValue - a set of with multiple types of values
I don't see any real problem, only tidbits and things that could potentially be done differently:
Your header guard name is actually reserved to the implementation since it uses a double underscore. …
- 20k
6
votes
Decoding and Encoding packet layers using decorator pattern
I don't know about the decorator pattern, but there are things you can improve anyway:
Identifiers that begin with an underscore followed by a capital letter are reserved identifiers in C++. Therefo …
- 20k
7
votes
Google Code Jam - T9 Spelling with C++
To complete what has already been said:
You are not in C90, not only can you declare variables in a for, but you don't have to declare all your variables at the beginning of a block. Generally speak …
- 20k
4
votes
Messy handler for multiple touch events in a game
There are two things that strike me, just looking at your code:
Some lines seem to be overly long. It seems to be at least partly due to the long names of the cocos2d-x API though. You could at leas …
- 20k
11
votes
Accepted
Improved indices trick
You can get rid of the <type_traits> header by replacing your std::enable_if by a bool template specialization:
template <::std::size_t, ::std::size_t, bool>
struct expand_indices_impl;
template <:: …
- 20k
12
votes
One-to-many multiplicity pattern
There are way too many const in your code. const-correctness is great, but you are overdoing it. A few tips to improve your code:
When I run g++ with the option -Wextra, I get a warning with this pi …
- 20k