Questions tagged [boost]

Boost is a large collection of high-quality libraries intended for use in C++. Boost is free, and is often considered a "second standard library".

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SDel file deletion utility

SDel is an open-source command-line utility for secure file deletion. (For me personally, it is also an attempt to refresh my knowledge of modern C++ after a long period of using C.) SDel Alpha ...
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1answer
4k views

HTTP downloader using Beast

I have written a small HTTP downloader using boost::asio Beast library (proposed to be included in Boost) network::uri library ...
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4answers
732 views

Calculating the Riemann Zeta Function for x>2 real numbers

Here's the code: ...
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1answer
1k views

Detect if string contains more than 1 period

This function returns true if the string contains zero or one periods, and returns false if the string contains more than one ...
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0answers
77 views

Pimpl helper class

I have started to utilize the PIMPL pattern in my code. I do not have access to C++11 etc. but do have access to Boost. The code must be able to compile on C++03 compilers. I decided to write a ...
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1answer
3k views

Boost::Asio server

This is my first time trying to do anything proper in Boost::Asio, so I would love if someone could look at it and tell me if it makes sense. It's based on examples ...
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2answers
317 views

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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0answers
302 views

Recursively generate combinations while using Boost Coroutines

I've tried out implementing a combination generator using boost coroutines. It accepts an array of possible values and generates one array at a time for each combination. As a limitation, it only ...
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0answers
254 views

Boost::python class overloading, issues in exposing more than one constructor

I am very new to boost::python and I am doing the first experiments. The following code works, but how to improve the code exposing also the non empty constructor? Some failed attempts have been ...
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0answers
5k views

I am using boost::process to call an external process, and using stdout, stderr, and stdin to supply/retrieve data

I have some program which takes input via stdin, writes output to stdout, and errors to stderr. I would like to call that program from another program, supplying data via stdin, and capturing output/...
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3answers
3k views

Calculate the crc32 of the contents of a file using boost

I'm computing the crc32 of a given file using boost: ...
4
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1answer
722 views

Same PyObject for a shared_ptr C++ object

I have a similar problem as in this mail. I want that every time I return the same C++ managed object to Python, I get the same PyObject. With the standard ...
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3answers
2k views

C++ fixed-size queue full/empty signaling

I'm considering an application where a large data needs to be written to file often. I would like to use a queue and have a producer and consumer running on different threads. Additionally, I would ...
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0answers
427 views

C++ variant and variant subsets

I seem to be in a love-hate relationship with C++. It can make some parts of your code elegant and easy to grasp, and some others become an inconceivable mess. And it's not the language itself causing ...
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1answer
2k views

Maximum clique problem: fast heuristic

I have implemented an algorithm which computes a maximum clique via a heuristic. The pseudo-code can be found in this Paper (see Algorithm 2). Maximum Clique Problem Given an undirected, simple ...
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0answers
878 views

Thread-safe LRU cache for C++

I'm working on a simple LRU cache for C++. There's nothing spectacular or unusual about it, but I would like it to be thread safe. (I'm going to be using this for instructional/benchmarking/...
2
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2answers
76 views

Storing and loading functions

The class Functions can store/load any functions. It does this by assigning a unique name to every function that gets added. You can then call the function by ...
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0answers
816 views

Computing intersection of 2D infinite lines

I wrote a small program to compute intersection of 2D infinite lines using Boost Geometry A line is defined by two points in Line class. The ...
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0answers
1k views

C++ UDP server for a game

I broke my server into two classes, a general server class and a client session class. I know the code isn't documented in the header, but I am more interested in the design of the server/session ...
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1answer
2k views

Thread pool using boost::thread

I would like to make a portable thread pool using boost::thread. Some one could tell me to look at boost::thread_group and ...
3
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1answer
331 views

Reverse Polish notation calculator similar to dc on Unix/Linux systems using dynamic libraries

This problem is using dynamic libraries so that additional calculator functions can be added by dropping a library into a specific directory. What I'd like to get out of this code review is: What do ...
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552 views

A full-duplex connection to an IRC server

This connection class can be used, through composition, to make IRC clients for different kinds of IRC services. ...
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1answer
1k views

Terminal ESC Sequence Decoder

The goal of this code is to read-in a stream of terminal ESC sequences, and break them down and fill a vector of parameterized sequences for processing later on. For example ...
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328 views

Alternative Boost.Any Library

Since Boost.Any library does not work well with Move-Only types, I had to write my own alternative: ...
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2answers
71 views

Implementing bounds-checking with exceptions based on an existing bitset container

BitPat here is a wrapper around a bitset. ...
4
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2answers
99 views

Calculating the number of elements of an underlying data structure

I read many comments on this question that one really shouldn't use local classes for functionality like which my code provides, but I couldn't really put things into perspective and decide what ...
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1answer
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Boost.Spirit UTF-8 string literal parser with escape support

I wrote (as part of a greater work) a Boost.Spirit grammar that would parse string literals, including support for the various escape sequences known from C/C++ (\n,...
4
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1answer
668 views

Adding/changing ID3 tags to media files with “artist - title” format

This code puts or changes ID3 tags to media files based on their file names. It assumes the files are in this format: morbid angel - maze of torment.mp3 The ...
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1answer
4k views

Boost::pool based STL vector allocator

I wrote an STL allocator which uses boost::pool to allocate the memory for std::vector container. This is my first time I ...
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0answers
335 views

Frequent subgraph mining program

I'm trying to make a programme that reads graphs from a .txt file, puts them in a vector, and finally puts the frequent closed graphs in another resulting file. I'...
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1answer
2k views

Boost condition variable wrapper

I would like to create a wrapper for a Boost conditional variable: ...
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3answers
3k views

Unit testing with a singly linked list

To hone my skills with C++11, I'm implementing a singly-linked list based on the requirements I found at this link. I've implemented code that supports the following subset of requirements from the ...
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1answer
2k views

Program simulating dictionary using file handling - part 2

This is the new version of the dictionary program which I uploaded for reviewing here. I would be grateful if the program could be reviewed for all the points mentioned in the above link. ...
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1answer
330 views

boost::spreadsort for std::pair

Boost 1.58 has new library spreadsort, so I tried it out. I wrote simple sample for sorting vector of pairs of int: ...
2
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1answer
283 views

ThreadPool based on ASIO, using a particle emitter

This code exists in my home repo and in general nobody else has really touched it. Living in such a vacuum has left me kind of uncertain of the actual code quality and correctness which is why I am ...
4
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1answer
127 views

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 ...
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2answers
535 views

A program to shred files

The following is a program to shred files securely: ...
2
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1answer
79 views

Two error-reporting conventions for a command-parser

I need to implement some function and I would like to report about a fail made inside a function. If function doesn't fail I need to get a some result (for example, ...
8
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1answer
649 views

Implementation of a new kind of smart pointer in C++

I'm tempted to write a new kind of smart pointer which, I believe, is less intrusive than boost::intrusive_ptr and has the same memory footprint. The code for the ...
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3answers
672 views

Directory Snapshot

The following code creates a recursive backup of a directory in the form of interlinked HTML files, structured in the same form as the input directory. It does not take the backup of the contents ...
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1answer
4k views

Asynchronous connect() with one function call, using C++11 lambdas and Boost.Asio

I've wanted to write a C++11 class for making IPv4 TCP connections and figured that it probably could be done with just one static function using some shared_ptr and lambda "magic". The following code ...
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0answers
3k views

Multi Server Architecture: ASIO C++

I am working on an application where the user will have flexibility to create and destroy a server instance at any port he/she wishes. User can create multi servers operating simultaneously - each ...
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0answers
534 views

Template based return type from object and class method

I'm looking for a better implementation of this. The current solution looks bad to me and breaks the VC10 compiler if you call Create() with a method expecting two ...
6
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3answers
240 views

Code Generator Generator

I've created a code generator generator, which is hosted here. I need its parser portion reviewed for OOP, OOD, and C++ best practices. gengenparser.h ...
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2answers
2k views

Thread-safe Phoenix Singleton class template with Boost

I've implemented the phoenix-singleton as a class template with boost inspired by Modern C++ Design. The code compiles fine with MSVC 2013 - and it seems to work, but I'm new to multi-threaded ...
13
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2answers
518 views

Elementwise iterator adaptor

There are many C++ implementations of the Euclidean vector. I.e., a vector in what is typically a 3- or 4-dimensional space. Something along the lines of ...
7
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1answer
2k views

Get extension(s) from path

I'm writing an utility function that returns the extension(s) of a boost::filesystem::path (v3). Boost's path class already has some of this functionality ...
7
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2answers
469 views

A reversed-string Trie data structure

This is a simple Trie data structure for strings, except it puts the strings into the structure backwards. The insert method simply iterates over chars from the string-to-be-inserted backwards, and ...
3
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1answer
2k views

Program that handles program options

I'm using boost::program_options to parse input from the user. However, while the standard library makes this an easy task to do, it's causing an (in my opinion) ...
3
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0answers
356 views

Wrapping boost accumulators

Here is a namespace for wrapping boost accumulators for use in a broader code base. I love these accumulators but re-typedefing them everywhere is ugly and a pain. ...