why can't I send a link?

why can't I send a link?

Because there's one day restriction to send links after join

https://codeshare.io/G8llm4 This is the code

Thanks

1. You have a leak. 2. Don't realloc for so small numbers. Do it step size using left shifts <<

where's the leak? because in the works it prints everything correctly

I didn't understand the second one

When realloc fails It returns NULL. So the original array is leaked. Do a backup if the original array like: auto double *const backup = arr; arr = realloc(...); if(!arr) { free(backup); return error.... }

What's the use of Union in this code. Even without union I think we can perform the same code

Not checking for malloc, realloc and calloc is fatal!

What's the use of Union in this code. Even without union I think we can perform the same code

Yes lol...

ok understood .. thank you very much

Is there a guide for using openCV in c++ projects on a mac?

Np )

and what was I supposed to go through?

maybe before I tried and it gave me problems .. however now I try again .. thanks

ok I think I understand .. thank you very much

With bitshifts :)

I think the easiest way to do that is with bitshifts: if cap is 1 do cap <<= 1; each time len >= cap

Hmm yeah maybe *=2 is more readable for other people....

But I like bitwise operations :) I mean I also always use (x &(x-1)) to check for power of 2 instead of using the % operator...

U don't like relying on the compiler too much in some situations...

I think the easiest way to do that is with bitshifts: if cap is 1 do cap <<= 1; each time len >= cap

Yeah and you can also trigger undefined behavior since shifts are architecture defined how fancy right?

Yeah and you can also trigger undefined behavior since shifts are architecture defined how fancy right?

You mean if they are implemented as logical or arithmetic shifts?

You mean if they are implemented as logical or arithmetic shifts?

Usually it just directly goes to equivalent of shl/shr instructions in x86

Probably using a loop. But it's possible with bitwise instructions I guess and also with AVX altough is overkill...

That's pretty nice

I have seen an example in AVX/SSE by someone. He loaded the max value, powered and used some vbroadcastps/vpinsrtps instruction to extract it. If I will find again it I'll send you a link!

It was magic

And this Hacker's Delight you are talking about is that a book or article?!

Ah yes you already said

I should read it sounds nice

Maybe I have it in my bookmarks somewhere I will look when I'm home )

Thanks!

What's the use of Union in this code. Even without union I think we can perform the same code

A union is just multiple variables that share the same memory space. So changing one, will change all others.

A union is just multiple variables that share the same memory space. So changing one, will change all others.

If I remove union from program will it be affected

If I remove union from program will it be affected

It depends. But usually no.

Union in above program is just to show example of structure in Union. But it has nothing specific to do

Union in above program is just to show example of structure in Union. But it has nothing specific to do

In that case using union has no advantage, it seems. 🤔

https://www.theaimonk.com/post/dive-into-supervised-machine-learning

http://www.vishalchovatiya.com/interface-segregation-principle-in-cpp-solid-as-a-rock/

Hello everyone

I an trying to design a garbage collector. So i want to find out ways to track memory usage of APIs/Functions in C++. Example GetData(structObj, *classObj); If GetData() is leaking memory, it can leak only via structObj and *classObj as they are the only memory we have provided to it. I need to track what is happening to the memory of structObj and *classObj inside GetData(); anybody has any idea how to trace memory info in heap memory?

It's for the learning purpose

I just need a mechanism to detect memory leak?

It's for the learning purpose

Who never reinvented the wheel?! You learn a lot by doing so. 😅 👍

As if it was the first design of Hans Boehm... Even this guy had to learn, you do not born an expert.

I could do it if I tried hard enough and if I had a reason to do it. But I do not. I do not see a problem with reinventing the wheel for learning purposes. It is good exercise.

I could do it if I tried hard enough and if I had a reason to do it. But I do not. I do not see a problem with reinventing the wheel for learning purposes. It is good exercise.

Another good exercise is to code a runtime library from scratch. 👍

Your current approach sounds like valgrind's

It's also a very slow approach

Thanks for the info. I will check it out.

Another good exercise is to code a runtime library from scratch. 👍

Thanks😊

i know basics , boss

sorry guys for my iretating questions

?

If you have any more of them, please ask either OT (#ot) or the other ~99.999759% of the Internet.

#ot

Why here in answer after 2 3 it skips 4 and gives 5 6 . I came to know that ++ptr increases 1 so 3 became 4 but (*ptr)[1] would not gave 2 but gave 5 how? Am I forgetting any concept?

If you have any more of them, please ask either OT (#ot) or the other ~99.999759% of the Internet.

where can i mak BOT using Python

a little bit guide pls

where can i mak BOT using Python

In OT.

In OT.

ok boss

OMG!

Hi, logger in initialized as below std::unique_ptr<MockHealthCheckEventLogger> logger{ std::make_unique<MockHealthCheckEventLogger>()}; Unit test fails for below code EXPECT_CALL(*logger, logDegraded(_, _)); EXPECT_CALL(*logger, logNoLongerDegraded(_, _)); and test case which have single EXPECT_CALL with *logger are passed. I don't know why this happens? Please help me.

Are ++ptr and ptr++ different

Are ++ptr and ptr++ different

it’s not for this example

What does that mean 😧

Oh

One more question why it has added 1 to rows only why not column

*(++ptr)[0] means 4 0(ptr++)[0] means 1

It may be silly ques

Hi.. can anyone explain me the logic for this code ? "To combine two Strings without using strcat() in c "

Hi.. can anyone explain me the logic for this code ? "To combine two Strings without using strcat() in c "

take two strings, take their length (strlen), allocate a new one and send characters

I got it tq

take two strings, take their length (strlen), allocate a new one and send characters

with memcpy and realloc? isnt that

Hi.. can anyone explain me the logic for this code ? "To combine two Strings without using strcat() in c "

Let me explain