CODEWITHSUNDEEP
c++arrays
Alexanov
Alexanov

Reputation: 125

Split 2D Array in C++/C to sub array

I have a 2D Array C[100][10],I want to split it column by column and insert in 1D Array like below :

C[100][10] split to C[0:100][0] , C[0:100][1] , ... , C[0:100][10] and the insert splited arrays to 1D array like : A[100] =C[0:100][0]

I can do all of that with for-loops but take long time and time is critical for my project. is there any way to solve this problem excluding for-loop

Upvotes: 1

Views: 1853

Answers (1)

Thomas Sablik
Thomas Sablik

Reputation: 16448

You should use an array of sub arrays like:

std::array<std::array<TYPE, 100>, 10> C;

Then the elements of each sub array are consecutively stored in memory and operations are faster. std::array provides copy operator

std::array<TYPE, 100> A = C[i];

Upvotes: 2

Related Questions