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Results tagged with c++
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user 5209
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.
1
vote
Display students of specific age using struct
#include <cstring>
You're not using any of the features in that header. Replace is with <string> and do use those. Also indent your code, it makes it more readable.
struct student
{
std::string n …
- 3,025
32
votes
Accepted
Converting array of bytes to the hex string representation
Yes, but I doubt you'll see any practical difference with such short input.
Two ideas: reduce the number of possible dynamic allocations, and do the conversion yourself with a small lookup table.
Yo …
- 3,025
5
votes
Time calculator for a given speed and file size
I see very few things to change, your code is easy to read.
You're not validating the input. What if someone enters something that's not a number?
I'd suggest you create a function that takes the p …
- 3,025
3
votes
Abstract Interface for managing Init/Shutdown
I'm afraid to say I don't like this design. You seem to have put quite a lot of thought into it, but you really don't gain much with it.
This is not an interface in the usual sense: it has state. In …
- 3,025
4
votes
Ticket sale income calculator
Don't use floating point numbers for representing money.
Don't using namespace std, it's a bad habit that will bite you down the line.
You've "double-spaced" pretty much all your code. That's too muc …
- 3,025
15
votes
Accepted
ROT47 Implementation
#include <cstring>
#include <cstdio>
You're not using either of those, so remove them, and include <string> instead to get std::string.
std::string rot47(std::string s) { /* ... */ }
Why copy the …
- 3,025
5
votes
Accepted
An attempt on unit testing in C++
I don't see anything wrong with your code as it is: formatting is consistent and tidy, functions do what they need to do and no more, no apparent bugs.
One nit: your header file includes <iostream> b …
- 3,025
4
votes
Array to function to int arithmetic
Yes, that can be simplified at lot.
*(&(coolPtr->map))
The * and & "cancel out" (assuming the expression is well-formed and both are otherwise legal), so you can drop them both, which leaves you wi …
- 3,025
5
votes
Dividing a range into N sub-ranges
#include <vector> // std::vector<T>
#include <iterator> // std::distance(), std::next()
Not a big fan of those comments, they tend to go stale pretty fast, e.g. here you're also "importing" std::c …
- 3,025
8
votes
Accepted
Recursive Memoized Fibonacci in C++
Not much to say: your code works as advertised, code is readable, formatting is consistent.
Things that could be better though: don't use raw arrays with new unless you absolutely have to. Prefer std …
- 3,025
4
votes
Accepted
MyTimer based on QTimer
That's a lot of code indeed, and for all that code it is not very flexible: the "slot" name is fixed, you force multiple inheritance on your users, so they can have only one such type of timer - what …
- 3,025
3
votes
Accepted
Merge two sorted linked lists without recursion
You're duplicating the code to copy and merge nodes four times - that can't be good. You could move that into a separate function, but that might become messy because of all the state that has to be c …
- 3,025
2
votes
Video streaming client
Concurrency bugs
In frameQueueGet:
if(buffer->isFrameQueueEmpty())
{
buffer->bufferWait();
}
else
{
frame = buffer->getFrame();
// ...
This only works if you have a single decoder thread. …
- 3,025
12
votes
Accepted
ASCII value converter
int main(int argc, char *argv[]){
//Declare Variables.
string input;
int size;
Don't declare variables until you actually need them, and don't declare variables you don't need. In this c …
- 3,025
4
votes
Accepted
Simple implementation of a generic stack
In addition to MAG's answer, a couple of points.
You're missing something related to memory management: what happens if someone copies one of your stacks as in:
BBStack<int> s1(1);
BBStack<int> s …
- 3,025