by frek
Get updated and ready for important C++ exercises


[1 reply] : I would recommend the exercises from B. Stroustrup's book. https://ww... (by thmm)

by Cambalinho
Math: how calculate the line dots?


[15 replies] Last: 3D Rotation: https://imgur.com/qOgUuPf 2D Rotation: https://imgur.com... (by Cambalinho)

fastest find and replace for a string (1,2,3) 

[59 replies] Last: Here is a search and replace (SAR) by simple string indexing. I use a... (by oggin)

by lastchance
Eigen is not fast??


[3 replies] Last: I guess the OP has vanished, but Eigen is likely to benefit substantia... (by mbozzi)

by Cplusc
Sparse Matrix transpose


[16 replies] Last: ...and now the transpose is ridiculously easy. :O) (by Duthomhas)

by baezacaljo
How to avoid dynamic memory allocation, and templates for matricez using Eigen library in C++


[8 replies] Last: Jonnin, i never got such an nice answer telling the truth, Thank you v... (by baezacaljo)

by algmaster
how to find the highest sum of a subsequence


[5 replies] Last: #include <iostream> #include <vector> using namespace std; int bestS... (by lastchance)

by frek
Range based for loop


[4 replies] Last: ^^^ that is a whole new discussion, but the & means that changes (if y... (by jonnin)

by uppercaseguy
object not dynamically allocating


[8 replies] Last: I assume @seeplus is asking about line 7 of the first snippet of code ... (by mbozzi)

by Cplusc
Vector indexing


[10 replies] Last: A trivial method: #include <vector> #include<string> #include<iost... (by oggin)

by dobbijs
Check input time format


[3 replies] Last: This works with VS: #include <iostream> #include <string> #include ... (by seeplus)

by Cplusc
MPI_Allreduce for object of a class


[3 replies] Last: Thanks for your answers. It was helpful. (by Cplusc)

by arnesc
tableprinter  Tablelike output


[5 replies] Last: Thank you :) I refactored function object passing part and made value... (by arnesc)

by thecoolbeast
Recursion Function


[10 replies] Last: Thanks! I believe Line 21 should have read return money + get_bars_1... (by mbozzi)

Help C++ 

[2 replies] Last: @The apprentice, PLEASE USE CODE TAGS (the <> formatting button to ... (by JRManx)

by baezacaljo
Generate a template class for a Matrix using vectors or change to Eigen library, C++


[17 replies] Last: Thanks jonnin, I got it. Also, I searched for some info, and now I hav... (by baezacaljo)

by Cplusc
MPI


[9 replies] Last: sorry, I didn't provide a good example of my question. (by Cplusc)

by Hachiman
Pointer Arrays


[7 replies] Last: they may work. its hard to say. you throw away the returned values! ... (by jonnin)

by ryuuki
alternating values


[6 replies] Last: Thank you very much! I am just a beginner to this and just modifying e... (by ryuuki)

How to get the type of a variable without the "typeinfo" header? 

[17 replies] Last: Honestly, I don't see why it shouldn't be allowed to post on differen... (by jonnin)
