and the reference points to the same object

but with primitives, it doesn't work

the example made in the stack overflow thread doesn't work because it makes the copied reference point to the new object

but if you modify the object the reference was pointing to without changing what it points to within the method, it works

Help me to solve this

XDDDDDDDDDD IN C++?

This is physics

Lmao

Guys who is good at theory of languages?

Automata and stuff like that..

I think its gonna annoy u guys ..here is it

I d like to minimze this NFA

I went to various websites .and read about minimization

Except this automaton is burning my brain xD.anywat dont answer me if u are busy and thanks so much

NFA? n... finite automata

Michael thats what im dealing with everday xD i just had the course yesterday yet i forgot..im getting old whn im only 20

getiing error in data

anyone help

Could you please provide a minimal working example? * short enough, without inessential codes; * compilable and executable; * being able to reproduce the problem you have met.

Could you please provide a minimal working example? * short enough, without inessential codes; * compilable and executable; * being able to reproduce the problem you have met.

ok wait

#include <iostream> #include <string> using namespace std; int main() { string name, street, state; int zip; char more_data = 'Y'; do { cout<<"\n \nName.........."; getline(cin,name); cout<<"Street........"; getline(cin,street); cout<<"State........."; getline(cin,state); cout<<"Zip Code......"; cin>>zip; cout<<"\n \nEnter another Record? (Y/N) \t"; cin>>more_data; } while((more_data == 'y') ||(more_data == 'Y') ); }

#include <iostream> #include <string> using namespace std; int main() { string name, street, state; int zip; char more_data = 'Y'; do { cout<<"\n \nName.........."; getline(cin,name); cout<<"Street........"; getline(cin,street); cout<<"State........."; getline(cin,state); cout<<"Zip Code......"; cin>>zip; cout<<"\n \nEnter another Record? (Y/N) \t"; cin>>more_data; } while((more_data == 'y') ||(more_data == 'Y') ); }

for this code I'm getting output below

Name..........das gupta Street........sdagv 144 State.........54 Zip Code......144 Enter another Record? (Y/N) y Name..........Street........ State......... Zip Code......

why on next iteration I'm getting whose Name.......Street without taking input I'm not able to figure it out.

Could you please provide a minimal working example? * short enough, without inessential codes; * compilable and executable; * being able to reproduce the problem you have met.

can you look again

can you look again

I was busy, sorry for the late response. When you type y, and press enter, std::cin eats y and puts it in more_data, and enter is left in the input stream. For the next loop of your do ... while loop, std::getline() eats the last enter, and dumps an empty string into name. This is why you get Name..........Street........ for the second loop.

ok go it

For Linux, press Ctrl + D after your Y; and for Windows, press Ctrl + Z. You'll get what you want.

so what I need to change for to prevent that enter to eat second time d

For Linux, press Ctrl + D after your Y; and for Windows, press Ctrl + Z. You'll get what you want.

But instead of user interfererance what do I can better do with code

FYI, int for ZIP number is not enough. In some country, ZIP could contain letters. E.g. UK.

You may want to have a look at: https://postal-code.co.uk/postcode/London

FYI, int for ZIP number is not enough. In some country, ZIP could contain letters. E.g. UK.

ok will fix it, thanks and what changes I need to do on code for desired working

so what I need to change for to prevent that enter to eat second time d

Try std::cin.ignore(). You may need to read the document.

Thanks a lot, I hope it will fix my code 😊

#include <limits> ... std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n'); For example.

Thanks a lot it worked.

template<> // full specialization for std::hash struct std::hash<Type> { typedef Type argument_type; typedef size_t result_type; result_type operator()(const argument_type& t) const noexcept { return std::hash<int>{}(t.key); } }; triggers a bug of GCC (under 4.8.0), please note and bypass it (by surrouding with namspace std). : )

Hi< I am trying to use wiringPi http://wiringpi.com/download-and-install/ In a c++ program I have written the c++ code as follows. #include <wiringPi.h> int main (void) { wiringPiSetup () ; pinMode (0, OUTPUT) ; for (;;) { digitalWrite (0, HIGH) ; delay (500) ; digitalWrite (0, LOW) ; delay (500) ; } return 0 ; } But when i compile using the following statement g++ -Wall -o test test.cpp -lwiringPi I am getting the following error. /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libwiringPi.so: undefined reference to `crypt' /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libwiringPi.so: undefined reference to `pthread_join' /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libwiringPi.so: undefined reference to `pthread_create' /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libwiringPi.so: undefined reference to `shm_open' /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libwiringPi.so: undefined reference to `pthread_cancel' Any one knows Why?

Hi< I am trying to use wiringPi http://wiringpi.com/download-and-install/ In a c++ program I have written the c++ code as follows. #include <wiringPi.h> int main (void) { wiringPiSetup () ; pinMode (0, OUTPUT) ; for (;;) { digitalWrite (0, HIGH) ; delay (500) ; digitalWrite (0, LOW) ; delay (500) ; } return 0 ; } But when i compile using the following statement g++ -Wall -o test test.cpp -lwiringPi I am getting the following error. /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libwiringPi.so: undefined reference to `crypt' /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libwiringPi.so: undefined reference to `pthread_join' /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libwiringPi.so: undefined reference to `pthread_create' /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libwiringPi.so: undefined reference to `shm_open' /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libwiringPi.so: undefined reference to `pthread_cancel' Any one knows Why?

you have to link the pthread library g++ -Wall -o test test.cpp -lwiringPi -lpthread

No. Trying. Thanks

hello goodmorning?

you have to link the pthread library g++ -Wall -o test test.cpp -lwiringPi -lpthread

Nice to see ya here

Hi< I am trying to use wiringPi http://wiringpi.com/download-and-install/ In a c++ program I have written the c++ code as follows. #include <wiringPi.h> int main (void) { wiringPiSetup () ; pinMode (0, OUTPUT) ; for (;;) { digitalWrite (0, HIGH) ; delay (500) ; digitalWrite (0, LOW) ; delay (500) ; } return 0 ; } But when i compile using the following statement g++ -Wall -o test test.cpp -lwiringPi I am getting the following error. /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libwiringPi.so: undefined reference to `crypt' /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libwiringPi.so: undefined reference to `pthread_join' /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libwiringPi.so: undefined reference to `pthread_create' /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libwiringPi.so: undefined reference to `shm_open' /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libwiringPi.so: undefined reference to `pthread_cancel' Any one knows Why?

And shm_open requires -lrt option

g++ -Wall -o test test.cpp -lwiringPi -lpthread -lrt This works. 3 errors fixed. Only one exist now //usr/local/lib/libwiringPi.so: undefined reference to `crypt'

Do we need to install anything for crypt?

g++ -Wall -o test test.cpp -lwiringPi -lpthread -lrt This works. 3 errors fixed. Only one exist now //usr/local/lib/libwiringPi.so: undefined reference to `crypt'

I don't know which library exports the function, maybe you can read the manual of wiringPi

Ok. Thanks.

Ok. Thanks.

try -lcrypt, may helps

try -lcrypt, may helps

Its works. Thanks you very much

Hi :D

i am striving to learn this c++...can anyone find the error in this program the program executs but I am not getting the correct output

In your codes, you made an assumption that c is initializated to 0. However, this assumption is not always correct. It would be better for you to explicitly initialize your variables before use. In your case, say int c = 0;.

BTW, this is C, not C++.

Oh..thanks a lot....this means a lot to me

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I am working with an OpenWrt Project. I am using few packages for tool chain build and there is a make file for each package. I wanted to know that is there any way we can install that package in Linux development machine(Ubuntu) by using make command option? I am sharing a sample makefile also

If anyone having better idea, Please help?

Tell me what's declval and when it's used for

Please master

oh wow thanks

Hyml is really nice for wob poges

Programming languages are just tools. Just like the difference between knife and brush. You use knife to cut, and you use brush to clean. Every tool has its field to apply. In this field, the power of the tool is maxed, however in other fields, it will fail to do the job. Hence, there is no best and strongest language, there are just appropriate languages for a specific problem or project.

First learn english

I'm not able to understand you.

Good to know. However, if you want to communicate with each other here, you have to practice your English first.

batman file

lol