@programminginc - страница 2147

Anonymous

please help me

Yakov

Hey guys. I have a question that I don't even know how to google. So, if you are giving to some void function pointer array you can do whathewer you want w/ it and access from any other function. BUT I like vectors a lot and to do the same thing I create vector<> functions and return the given array. But that's inconvinient as fuck. Is there's a better way?

Yakov

example:

01000001011011010100000101101110

Hey guys. I have a question that I don't even know how to google. So, if you are giving to some void function pointer array you can do whathewer you want w/ it and access from any other function. BUT I like vectors a lot and to do the same thing I create vector<> functions and return the given array. But that's inconvinient as fuck. Is there's a better way?

I don't understand. What problem you are facing.

01000001011011010100000101101110

example:

But it's better to pass the vector as reference.

Yakov

But it's better to pass the vector as reference.

I don't understan exactly how to.

01000001011011010100000101101110

Void function ( vector<int> &inputArray) { // Do here // No return }

01000001011011010100000101101110

example:

As the change will be made in original vector you dont need to return it again

Yakov

Like that?

01000001011011010100000101101110

Like that?

It works?

Yakov

It works?

Seems to.

Yakov

Yeah it's working. Thanks you a lot, gonna read about references and pointers.

01000001011011010100000101101110

Great!

Ᏸ

What does this mean Variable 'c' used in loop condition not modified in loop body. I can't seem to understand the explanations on the internet

01000001011011010100000101101110

What does this mean Variable 'c' used in loop condition not modified in loop body. I can't seem to understand the explanations on the internet

Code?

Ᏸ

Code?

for (count = 0; (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'); count++)     {               }

MilkBeforeCereal

What does this mean Variable 'c' used in loop condition not modified in loop body. I can't seem to understand the explanations on the internet

without seeing the code, c is probably in your loop condition and c isn't changing

MilkBeforeCereal

this is a warning I assume?

MilkBeforeCereal

for (count = 0; (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'); count++)     {               }

full code

MilkBeforeCereal

you can probably fix this easily

Ᏸ

full code

#include <stdio.h> #include <cs50.h>     int main(void) {     int count;     char c = 'a';     //Prompts user for text     string s = get_string("Text: ");        for (count = 0; (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'); count++)     {               }       printf("%i letter(s)\n", count); }

MilkBeforeCereal

#include <stdio.h> #include <cs50.h>     int main(void) {     int count;     char c = 'a';     //Prompts user for text     string s = get_string("Text: ");        for (count = 0; (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'); count++)     {               }       printf("%i letter(s)\n", count); }

what's even the role of c here?

MilkBeforeCereal

what's this program supposed to do?

Ᏸ

what's this program supposed to do?

I'm trying to write a code that counts the number of letters in a given text

MilkBeforeCereal

I'm trying to write a code that counts the number of letters in a given text

you're not using the string anywhere in the loop tho?

Hubert

#include <stdio.h> #include <cs50.h>     int main(void) {     int count;     char c = 'a';     //Prompts user for text     string s = get_string("Text: ");        for (count = 0; (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'); count++)     {               }       printf("%i letter(s)\n", count); }

your code will enter the infinite loop

Ᏸ

I'm clueless

01000001011011010100000101101110

#include <stdio.h> #include <cs50.h>     int main(void) {     int count;     char c = 'a';     //Prompts user for text     string s = get_string("Text: ");        for (count = 0; (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'); count++)     {               }       printf("%i letter(s)\n", count); }

See the thing is, You must start the loop from 0 i.e. index 0 of string.. To length of string

MilkBeforeCereal

How do you count the number of alphabets in a real string?

MilkBeforeCereal

you read from the beginning till the end, character by character

MilkBeforeCereal

for that you need the length

MilkBeforeCereal

so find the length first

MilkBeforeCereal

you read from the beginning till the end, character by character

then do this

01000001011011010100000101101110

See the thing is, You must start the loop from 0 i.e. index 0 of string.. To length of string

Then you must use a if() condition to check if it is a chat or not

MilkBeforeCereal

compare to character set and increase count

01000001011011010100000101101110

compare to character set and increase count

Yes, exactly.

Дмитрий

hi ,when i use overload operator + in construction (1 object_matrix +another object _matrix ) i contained them in first how can i make containing to another third object look like a=c +b

Дмитрий

gallo

Why in destructor do you do after the For delete[] ->array_matrix

Dima

oop stuff

Dima

kinda safety

Dima

compile time stuff

NXiss7

Don't wanna use C#. Don't want to get bound to a company... C++ is more "cross-platform"... You can use both low-level stuff and hifh level stuff at yhe same time, seamlessly...

Dima

Don't wanna use C#. Don't want to get bound to a company... C++ is more "cross-platform"... You can use both low-level stuff and hifh level stuff at yhe same time, seamlessly...

you can use c# and c++ together ¯\_(ツ)_/¯

NXiss7

Yep

NXiss7

But why bother C# when you can just use C++? Create smaller exes single exes... 😄😄

Дмитрий

Why in destructor do you do after the For delete[] ->array_matrix

i delete all matrix but in first part there there is for i delete massive in matrix

gallo

i delete all matrix but in first part there there is for i delete massive in matrix