Equivalent of VecDoub in C?
I am new to C++ and was curious what is the C equivalent of Vecdoub and VecInt?
I am trying to evaluate code for LU decomposition but it is written in C++, some of the code is as follows.
VecDoub vv(n);
VecInt indx;
vv[i] = 1/max;
I am assuming that VecInt is similar to an array and vecdoub is similar to a 2-d array or am I completely wrong? Any clear and concise information would be greatly appreciated.
c++ c
asked Nov 22 '18 at 11:51
KolacheMasterKolacheMaster
319
|
show 1 more comment
I am new to C++ and was curious what is the C equivalent of Vecdoub and VecInt?
I am trying to evaluate code for LU decomposition but it is written in C++, some of the code is as follows.
VecDoub vv(n);
VecInt indx;
vv[i] = 1/max;
I am assuming that VecInt is similar to an array and vecdoub is similar to a 2-d array or am I completely wrong? Any clear and concise information would be greatly appreciated.
c++ c
asked Nov 22 '18 at 11:51
KolacheMasterKolacheMaster
319
3
What isVecDoubin c++? There's no such class supported by the c++ standard.
– πάντα ῥεῖ
Nov 22 '18 at 11:54
1
Same forVecInt.
– HolyBlackCat
Nov 22 '18 at 11:55
Maybe VecDoub vv(n) - is array of n elements of type double. VecInt indx - is array of type int (size not initialized). But it's only my assumption
– snake_style
Nov 22 '18 at 11:56
I was viewing some information from Numerical Recipes in C and I figured the chunk of code I am looking at was in C++, I am even more perplexed now.
– KolacheMaster
Nov 22 '18 at 11:56
1
make your own opinion, but note that the code in Numerical Recipes is partly outdated and partly even the algorithms they use are rather controversial numerics wise. I love the book for its easy to grasp explanations, but dont take everything for granted what they write
– user463035818
Nov 22 '18 at 12:15
|
show 1 more comment
I am new to C++ and was curious what is the C equivalent of Vecdoub and VecInt?
I am trying to evaluate code for LU decomposition but it is written in C++, some of the code is as follows.
VecDoub vv(n);
VecInt indx;
vv[i] = 1/max;
I am assuming that VecInt is similar to an array and vecdoub is similar to a 2-d array or am I completely wrong? Any clear and concise information would be greatly appreciated.
c++ c
asked Nov 22 '18 at 11:51
KolacheMasterKolacheMaster
319
I am new to C++ and was curious what is the C equivalent of Vecdoub and VecInt?
I am trying to evaluate code for LU decomposition but it is written in C++, some of the code is as follows.
VecDoub vv(n);
VecInt indx;
vv[i] = 1/max;
I am assuming that VecInt is similar to an array and vecdoub is similar to a 2-d array or am I completely wrong? Any clear and concise information would be greatly appreciated.
c++ c
c++ c
asked Nov 22 '18 at 11:51
KolacheMasterKolacheMaster
319
asked Nov 22 '18 at 11:51
KolacheMasterKolacheMaster
319
asked Nov 22 '18 at 11:51
KolacheMasterKolacheMaster
319
asked Nov 22 '18 at 11:51
KolacheMasterKolacheMaster
319
asked Nov 22 '18 at 11:51
KolacheMasterKolacheMaster
319
319
3
What isVecDoubin c++? There's no such class supported by the c++ standard.
– πάντα ῥεῖ
Nov 22 '18 at 11:54
1
Same forVecInt.
– HolyBlackCat
Nov 22 '18 at 11:55
Maybe VecDoub vv(n) - is array of n elements of type double. VecInt indx - is array of type int (size not initialized). But it's only my assumption
– snake_style
Nov 22 '18 at 11:56
I was viewing some information from Numerical Recipes in C and I figured the chunk of code I am looking at was in C++, I am even more perplexed now.
– KolacheMaster
Nov 22 '18 at 11:56
1
make your own opinion, but note that the code in Numerical Recipes is partly outdated and partly even the algorithms they use are rather controversial numerics wise. I love the book for its easy to grasp explanations, but dont take everything for granted what they write
– user463035818
Nov 22 '18 at 12:15
|
show 1 more comment
3
What isVecDoubin c++? There's no such class supported by the c++ standard.
– πάντα ῥεῖ
Nov 22 '18 at 11:54
1
Same forVecInt.
– HolyBlackCat
Nov 22 '18 at 11:55
Maybe VecDoub vv(n) - is array of n elements of type double. VecInt indx - is array of type int (size not initialized). But it's only my assumption
– snake_style
Nov 22 '18 at 11:56
I was viewing some information from Numerical Recipes in C and I figured the chunk of code I am looking at was in C++, I am even more perplexed now.
– KolacheMaster
Nov 22 '18 at 11:56
1
make your own opinion, but note that the code in Numerical Recipes is partly outdated and partly even the algorithms they use are rather controversial numerics wise. I love the book for its easy to grasp explanations, but dont take everything for granted what they write
– user463035818
Nov 22 '18 at 12:15
3
3
What is
VecDoub in c++? There's no such class supported by the c++ standard.– πάντα ῥεῖ
Nov 22 '18 at 11:54
What is
VecDoub in c++? There's no such class supported by the c++ standard.– πάντα ῥεῖ
Nov 22 '18 at 11:54
1
1
Same for
VecInt.– HolyBlackCat
Nov 22 '18 at 11:55
Same for
VecInt.– HolyBlackCat
Nov 22 '18 at 11:55
Maybe VecDoub vv(n) - is array of n elements of type double. VecInt indx - is array of type int (size not initialized). But it's only my assumption
– snake_style
Nov 22 '18 at 11:56
Maybe VecDoub vv(n) - is array of n elements of type double. VecInt indx - is array of type int (size not initialized). But it's only my assumption
– snake_style
Nov 22 '18 at 11:56
I was viewing some information from Numerical Recipes in C and I figured the chunk of code I am looking at was in C++, I am even more perplexed now.
– KolacheMaster
Nov 22 '18 at 11:56
I was viewing some information from Numerical Recipes in C and I figured the chunk of code I am looking at was in C++, I am even more perplexed now.
– KolacheMaster
Nov 22 '18 at 11:56
1
1
make your own opinion, but note that the code in Numerical Recipes is partly outdated and partly even the algorithms they use are rather controversial numerics wise. I love the book for its easy to grasp explanations, but dont take everything for granted what they write
– user463035818
Nov 22 '18 at 12:15
make your own opinion, but note that the code in Numerical Recipes is partly outdated and partly even the algorithms they use are rather controversial numerics wise. I love the book for its easy to grasp explanations, but dont take everything for granted what they write
– user463035818
Nov 22 '18 at 12:15
|
show 1 more comment
1 Answer
1
active
oldest
votes
I think you're talking about VecDoub, which is a typedef/rename of the type std::vector<double> in the book Numerical Recipes.
C doesn't have an STL library like C++, so there's nothing there that you won't have to create yourself from scratch. Even if you plan to do it, you should be proficient C programmer to be able to manage memory correctly. One library I saw implementing such a vector is libbtc. See their implementation here and here. You can also see how to use it in the tests here.
answered Nov 22 '18 at 11:59
The Quantum PhysicistThe Quantum Physicist
11.7k64698
Thank you! Yes, I figured I could replicate what I am reading by dynamically allocating memory but so far I've been running into issues. I'll look into the links you've posted.
– KolacheMaster
Nov 22 '18 at 12:05
add a comment |
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I think you're talking about VecDoub, which is a typedef/rename of the type std::vector<double> in the book Numerical Recipes.
C doesn't have an STL library like C++, so there's nothing there that you won't have to create yourself from scratch. Even if you plan to do it, you should be proficient C programmer to be able to manage memory correctly. One library I saw implementing such a vector is libbtc. See their implementation here and here. You can also see how to use it in the tests here.
answered Nov 22 '18 at 11:59
The Quantum PhysicistThe Quantum Physicist
11.7k64698
Thank you! Yes, I figured I could replicate what I am reading by dynamically allocating memory but so far I've been running into issues. I'll look into the links you've posted.
– KolacheMaster
Nov 22 '18 at 12:05
add a comment |
I think you're talking about VecDoub, which is a typedef/rename of the type std::vector<double> in the book Numerical Recipes.
C doesn't have an STL library like C++, so there's nothing there that you won't have to create yourself from scratch. Even if you plan to do it, you should be proficient C programmer to be able to manage memory correctly. One library I saw implementing such a vector is libbtc. See their implementation here and here. You can also see how to use it in the tests here.
answered Nov 22 '18 at 11:59
The Quantum PhysicistThe Quantum Physicist
11.7k64698
Thank you! Yes, I figured I could replicate what I am reading by dynamically allocating memory but so far I've been running into issues. I'll look into the links you've posted.
– KolacheMaster
Nov 22 '18 at 12:05
add a comment |
I think you're talking about VecDoub, which is a typedef/rename of the type std::vector<double> in the book Numerical Recipes.
C doesn't have an STL library like C++, so there's nothing there that you won't have to create yourself from scratch. Even if you plan to do it, you should be proficient C programmer to be able to manage memory correctly. One library I saw implementing such a vector is libbtc. See their implementation here and here. You can also see how to use it in the tests here.
answered Nov 22 '18 at 11:59
The Quantum PhysicistThe Quantum Physicist
11.7k64698
I think you're talking about VecDoub, which is a typedef/rename of the type std::vector<double> in the book Numerical Recipes.
C doesn't have an STL library like C++, so there's nothing there that you won't have to create yourself from scratch. Even if you plan to do it, you should be proficient C programmer to be able to manage memory correctly. One library I saw implementing such a vector is libbtc. See their implementation here and here. You can also see how to use it in the tests here.
answered Nov 22 '18 at 11:59
The Quantum PhysicistThe Quantum Physicist
11.7k64698
edited Nov 22 '18 at 12:05
answered Nov 22 '18 at 11:59
The Quantum PhysicistThe Quantum Physicist
11.7k64698
answered Nov 22 '18 at 11:59
The Quantum PhysicistThe Quantum Physicist
11.7k64698
answered Nov 22 '18 at 11:59
The Quantum PhysicistThe Quantum Physicist
11.7k64698
11.7k64698
Thank you! Yes, I figured I could replicate what I am reading by dynamically allocating memory but so far I've been running into issues. I'll look into the links you've posted.
– KolacheMaster
Nov 22 '18 at 12:05
add a comment |
Thank you! Yes, I figured I could replicate what I am reading by dynamically allocating memory but so far I've been running into issues. I'll look into the links you've posted.
– KolacheMaster
Nov 22 '18 at 12:05
Thank you! Yes, I figured I could replicate what I am reading by dynamically allocating memory but so far I've been running into issues. I'll look into the links you've posted.
– KolacheMaster
Nov 22 '18 at 12:05
Thank you! Yes, I figured I could replicate what I am reading by dynamically allocating memory but so far I've been running into issues. I'll look into the links you've posted.
– KolacheMaster
Nov 22 '18 at 12:05
add a comment |
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3
What is
VecDoubin c++? There's no such class supported by the c++ standard.– πάντα ῥεῖ
Nov 22 '18 at 11:54
1
Same for
VecInt.– HolyBlackCat
Nov 22 '18 at 11:55
Maybe VecDoub vv(n) - is array of n elements of type double. VecInt indx - is array of type int (size not initialized). But it's only my assumption
– snake_style
Nov 22 '18 at 11:56
I was viewing some information from Numerical Recipes in C and I figured the chunk of code I am looking at was in C++, I am even more perplexed now.
– KolacheMaster
Nov 22 '18 at 11:56
1
make your own opinion, but note that the code in Numerical Recipes is partly outdated and partly even the algorithms they use are rather controversial numerics wise. I love the book for its easy to grasp explanations, but dont take everything for granted what they write
– user463035818
Nov 22 '18 at 12:15