@programminginc - страница 1078

Ariana

You can literally treat it as declaring many vars at once for that matter

Anonymous

depends on what you understand behind "arrays"

A beginner understands what most high level programming languages means by arrays

BinaryByter

A beginner understands what most high level programming languages means by arrays

yes

kapil

Also be wary of the book Let Us C (16th Edition, 2017) by Yashwant Kanetkar. Some people view it as a horribly outdated book that teaches Turbo C and has lot of obsolete, misleading and downright incorrect material.

Just checked. I have 15th edition.

BinaryByter

thats enough until you dig deeper

Ariana

lol

Ariana

thats worse

Anonymous

yes

And this is important.

BinaryByter

yea

Ariana

https://stackoverflow.com/questions/562303/the-definitive-c-book-guide-and-list

just read this pls

BinaryByter

what I meant was "you don't need to understand that arrays really are pointers behind the scenes"

kapil

just read this pls

Yes, checking that as well. Thanks

Anonymous

what I meant was "you don't need to understand that arrays really are pointers behind the scenes"

Thats true. But to a beginner your suggestion sounded like "You don't need to understand arrays when you're not a pro"

Anonymous

And that dangerous to say to newbes

Ariana

^

BinaryByter

Okay, fair point!

Zeus

std::vector

No

Ariana

You can literally treat it as declaring many vars at once for that matter

.

Zeus

You can literally treat it as declaring many vars at once for that matter

Yes

BinaryByter

No

std::vector is litterally a wrapper around c-arrays that do what you wantex

Ariana

Like when you do int a[5]; it is basically same as int a,b,c,d,e;

klimi

std::vector is litterally a wrapper around c-arrays that do what you wantex

Why there is an STD:array then

Ariana

with just some pointery diff

Zeus

std::vector is litterally a wrapper around c-arrays that do what you wantex

How do u do the same thing in java??

BinaryByter

Why there is an STD:array then

std::array is fixed size

BinaryByter

How do u do the same thing in java??

linked lists

Zeus

Array that change size?

klimi

std::array is fixed size

So better performance?

Ariana

Use exploding arrays

Zeus

linked lists

Woahhh

BinaryByter

So better performance?

yes

Ariana

Linked list suck

Ariana

A lot

Ariana

Like

klimi

yes

Ah i see

BinaryByter

Use exploding arrays

exploding arrays?

Ariana

I dont get the poibt

Ariana

ok basically when you overflow you double the size

Ariana

It is much much better

BinaryByter

but you can't double the size in java

Ariana

More space and time efficient

Ariana

Realloc

Ariana

Ok screw jaba

BinaryByter

java has realloc?

Ariana

idk

Ariana

it should hav something similar rite

BinaryByter

prolly not

BinaryByter

java doesnt have pointers

Ariana

i quit java after 1hr mdr

BinaryByter

i quit java after 1hr mdr

^^^

Ariana

i quit java after 1hr mdr

or less

Zeus

Ok screw jaba

True I like c++ more than java

Ariana

exploding arrays is still best option imo

Ariana

Get a thing that doubles its size everytime it needs more size

BinaryByter

thats what std::vector does

Ariana

I suggest halfing its size when it reaches 1/4 capacity

BinaryByter

well in MSCV it does size *= 1.5

BinaryByter

I suggest halfing its size when it reaches 1/4 capacity

i suggest never doing that

Ariana

*=2 is most efficient i tot

Ariana

i suggest never doing that

why tho

Ariana

like youll be left with a lot of random useless mem

BinaryByter

*=2 is most efficient i tot

you want to keep space efficiency as well

Zeus

Suggest me some best practice book for c++😁

Ariana

Hmm

Ariana

*=const then

BinaryByter

like youll be left with a lot of random useless mem

delete takes some time

Ariana

Linked list sucks anyways

BinaryByter

*=const then

yes

Ariana

just dont use them

Ariana

delete takes some time

Nah

BinaryByter

Linked list sucks anyways

only way to implement that in java

BinaryByter

Nah

depends on your memory pool implementation

Ariana

Literally just declare the space unallocated

Ariana

realloc should do it

Ariana

Its like O(1)

BinaryByter

oh right vector can use realloc 🤔

BinaryByter

the implem in clinl uses malloc and copying

Shruti

Suggest me some best practice book for c++😁

Same for me

BinaryByter

Suggest me some best practice book for c++😁

the C++ primer is said to be good

Ariana

the implem in clinl uses malloc and copying

if heap is nearly full?