Questions tagged [c++03]
Code that is written to the 2003 version of the C++ standard. Use in conjunction with the 'c++' tag.
31 questions
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Finding paths between triangles efficiently in 3D geometry #2
This post is an update of the one from here. I've updated the code and a couple pieces of the post itself.
I've been writing some functions used to find paths between two types of triangles - alphas ...
- 193
3
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3
answers
138
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Finding paths between triangles efficiently in 3D geometry
An update to this post can be found here
I've been writing some functions used to find paths between two types of triangles - alphas and betas. Alphas are triangles that have been in a zone we ...
- 193
5
votes
1
answer
157
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wrapper for common subset of auto_ptr and unique_ptr API
I read an interesting old question on the Software Engineering SE about how to transition away from std::auto_ptr. So I wrote a wrapper around the common subset of <...
- 439
1
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1
answer
559
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Using mutable keyword to implement an owner-pointer class (C++03)
For a couple of days, I have been trying to implement an own templated class called owner_ptr (for my little project) whose instances has ownership over a ...
5
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3
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490
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Inheriting from std::auto_ptr to support deletion of allocated arrays in C++98/C++03
[EDIT: Thanks for your opinions. I think this topic is discussed enough. Since std::auto_ptr is removed from C++17, I decided to drop the idea of inheriting from <...
3
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1
answer
5k
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Functions asking for user input, with default prompts
I succeeded in the first part of the exercise, this attempt is the second part. I am not sure I have accomplished the goal, and would appreciate the input of more knowledgeable minds. As always, ...
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0
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1k
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UVa 524 - Prime Ring
The challenge
A ring is composed of n (even number) circles as shown in diagram. Put natural numbers 1,2,...,n into each circle separately, and the sum of numbers in two adjacent circles should be ...
- 335
8
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3
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945
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UVA 750: 8 Queens Chess
In chess it is possible to place eight queens on the board so that no
one queen can be taken by any other. Write a program that will
determine all such possible arrangements for eight queens given ...
- 335
3
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2
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1k
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OrderedList class template
I called my template OrderedList, but I don't like the name. Is there a better one?
It stores a vector of values of type T, and ...
- 131
2
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2
answers
2k
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Simple class to mimic a dynamic array
for my c++ class I was asked to write a class with the following characteristics:
Implement a vector replacement that operates only on integers (you don't need to use templates like the normal STL)...
- 23
3
votes
1
answer
576
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Memoization via template
This is kind of follow up of this question on stack overflow...
I wrote the following to utilize memoization for functions that take a single parameter and return a value:
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2
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2
answers
1k
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Relaying stdin data from one thread to another
I'd like to know if this piece of code is thread-safe. I'm learning something about threads, queues and synchronization, and I'd like to make sure this is correct, before moving forward to next step.
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5
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1
answer
14k
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Converting a string to a list of key-value pairs
I'm trying to convert a string (here after called input) into a vector of key-value pairs, all in C++03 (cannot use C++11, cannot use Boost libs).
The string in ...
- 201
4
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2
answers
3k
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Portable C++98 thread class akin to std::thread
I want a homegrown version of C++11's std::thread. My motivation is to avoid manual memory management of the arguments passed to the thread function. I'm restricted ...
- 143
4
votes
1
answer
148
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Distance between angles as points
This code calculates the distance between angles, particularly for n-tuples of angles. One example where this situation occurs is as follows:
I'm using a 2 arms, one 6 degree of freedom and the other ...
- 141
2
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1
answer
39
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Implement test which tries function with diferent params and expected results
What could I improve in the following code? The goal is to test a function againts a table of input parameters and compare to some expected results with some tolerance (as there are random variables ...
- 135
1
vote
1
answer
740
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Circular buffer offsets and sorted set of offsets sorted on their index
Consider the following C++03 code:
...
- 183
1
vote
1
answer
1k
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Converting integers to strings
I drafted a method that I intend to use to convert integers to strings. Is there a way to make it faster? Are there any "simple" changes I could make to improve its performance? This cannot be done ...
8
votes
1
answer
692
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Member function state machine
For various reasons, I wrote this. For one, I don't like to wrap every single function in a separate class, which is too verbose.
It's a state machine based on GoTW 57 function pointer wrapping and ...
- 183
3
votes
2
answers
307
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Length Conversions
I'm trying to create some helper functions that will allow me to convert from one unit of measurement to another. I eventually will need to be able to do speeds and temperatures as well, but so far, I'...
- 1,952
4
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3
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205
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Using a template to cycle through a sequence of containers
I'm trying to implement a template that takes a container as parameter. The template has a getnext method that cycles through the elements in the parameter. Take ...
- 43
6
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2
answers
2k
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Fixed size matrix implementation
I implemented a fixed-size matrix class which supports basic matrix operations (cannot use C++11). What do you think, and how could it be improved?
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- 268
5
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2
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129
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Avoiding casts in abstract types
I asked this question on Stack Overflow and in the comments someone had this to say.
In a proper design, you should almost never have to do a dynamic_cast, even if it's hidden inside some nice ...
- 151
5
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1
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783
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Dijkstra's and Prim's algorithms: correctness/efficiency
This is in preparation for a competition that only allows C++03.
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- 151
2
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1
answer
1k
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RAII-style lockable objects
I am working on a Windows project using C++03 (C++11 is not an option), and without using Boost. I have several resources that are accessed by multiple threads at various times - a queue, for example, ...
- 173
4
votes
1
answer
4k
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Using set for unordered, unique list of elements
In C++11 we have the option of using std::unordered_set if we require a list of elements that have no duplicates but order is not important.
In C++03 we don't have ...
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11
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2
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1k
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make_auto implementation for C++03 compilers
I want to provide, in the the spirit of C++11/boost make_shared and C++14 make_unique, a production-ready make_auto for C++03 compilers.
So, inspired boost's make_shared implementation for C++03 ...
- 281
3
votes
2
answers
431
views
legacy code and exception handling
After some 'digging' into the dark corners of legacy code I've found class, which handles INI files. It does reading and writing to the file, but I haven't found any exception handling logic. What ...
- 131
2
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1
answer
4k
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Standard library-like linear interpolation table
I'm looking for a general review of a generalized linear interpolation table. Design decisions, anything that's missing, anything that could be clearer or simplified, any style considerations. Keep in ...
- 11k
11
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2
answers
2k
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Custom nullptr_t class
I tried to write a nullptr_t class based on the official proposal to be used in C++03 only. The only differences with the proposal are that we can compare two ...
- 20k
0
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2
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498
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Remove continuous duplicate
I've made a little function to eliminate continuous duplicate from a std::vector. I have to use C++03.
For example, if a vector of ints is composed of: 1,1,2,3,,3,...
- 518