I have to use c++98 for application i am developing for, [EDIT2] i want to control the behavior of constructor based on a static member of class, (in my case a boolean) i want to control the behavior of constructor based on if it is a first ever call to constructor or not. For first ever constructor call, i want to execute some extra code but it must not execute in consecutive calls, For this i decided to have a static bool that will have default value of false, and after first constructor call, it will be set true for every other call. class data_sender { private: static bool library_initialized; public: // etc. }; This is kept private because i dont want consumer of this class to manipulate this directly. Its not const because obviously i want to change it inside constructor. Now i cannot assign the default value for this, it says c++ forbids this non-const static variable initialization. I think my approach is wrong here and i should be using some other method. I am relatively new to c++ so even if you point me to some article or tell me what to search for this. [EDIT] Another strange thing i noticed is, when i define the library_initialized as false within the .h file, class data_sender { .... }; bool data_sender::library_initialized = false; it gives me linker error. But if i define it inside the data_sender.cpp, it allows me to do this, bool data_sender::library_initialized = false; // This is inside data_sender.cpp

Ah wait, my bad, you said vscode 😅

yes😅

You should be doing this as data_sender::library_initialized = false; actually, afaik

I did and it works but only when i write this inside .cpp file and not in .h file. How is that possible?

.h is only for declaration, and member initialization should not be inlined

Well then you should be good just looking up an extension for C++ development in the vscode marketplace I don't know any since I use Visual Studio, so you'll have to find them yourself, unless someone else does

yes there is extension of c c++ complier but it also asks for mingw!

but there is also some process of mingw installation nd path setup😅

I need to transform this string 07/12/21 to December 7 2021. how to do that in C ? how to write function that identify 07 and stopping at / ?

Scanf

I would just do scanf "%d/%d/%d"

I have this scanf(" %[^\n]s", string); for (int i = 0; i <strlen(string); i++){ }But I don't know what do do after

Can I have a getter function which returns 2 variables?

Use struct or union. or you can use standard container to have pair of types returned.

No, no unions

Why not?

With memset

I have this code int main() { char string[40]; char tempm[10], tempd[10], tempy[10]; int month, date, year; int count = 0; printf("Introduceti data: \n"); scanf(" %[^\n]s", string); for (int i = 0; i <strlen(string); i++){ if (string[i] == '/'){ count ++; } else{ if (count == 0){ strncat(tempm, &string[i], 1); } if (count == 1){ strncat(tempd, &string[i],1); } if (count == 2){ strncat(tempy, &string[i], 1); } } } printf("%s",tempm); }```Why when I am run it I get this result: ```Introduceti data: 12/12/12 �<�U12 How to delete �<�U

There's no null terminator in your arrays of characters

There's no null terminator in your arrays of characters

Now there is, but there is no any output

Use debugger, I'm not a psychic

Now there is, but there is no any output

Well lol because you're clearing the string Do you like programming by randomly putting instructions until it works?

I wrote in Python. I have to write a mini code in C for my friend, I already forgot practically all of it's syntax and I wan't to understand where I am doing mistakes

Most probably someone at school or university taught you in turbo cpp. If possible convince them to allow you to use proper compiler instead of turbo c++.

No

My school still uses Turbo C++ :(

Quit

Try to read some tutorials first

they wont refund the money tho.

I need to write this code in less than 1 hour :(

Is it always necessary to implement data hiding and encapsulation in a program? Explain with the help of an example in case yes or no

Any body can help

I have to transform string '12/05/21' to May 12 2021. Does someone have any example of similar code ?

Or just user enters 12/05/21 . Transform that ?

Or just user enters 12/05/21 . Transform that ?

I have to write by myself this code. I get string '12/05/21' and to write a program that transform it in 'May 12 2021'

Read through the string with iterations over the month part only . Then store it in a variable say montht. In an strings assign month names for 12 iterations . If the iteration == montht then store the respective month into a string . Later print then month string and the initial string ( iterating over non month part ) .. this would be a brute force approach

What type of variable should be montht?

Read through the string with iterations over the month part only . Then store it in a variable say montht. In an strings assign month names for 12 iterations . If the iteration == montht then store the respective month into a string . Later print then month string and the initial string ( iterating over non month part ) .. this would be a brute force approach

I tryed to write something similar: int main() { char string[40]; char tempm[10], tempd[10], tempy[10]; int month, date, year; int count = 0; printf("Introduceti data: \n"); scanf(" %[^\n]s", string); for (int i = 0; i <strlen(string); i++){ if (string[i] == '/'){ count ++; } else{ if (count == 0){ strncat(tempm, &string[i], 1); } if (count == 1){ strncat(tempd, &string[i],1); } if (count == 2){ strncat(tempy, &string[i], 1); } } } printf("%s",tempm); }

I have to write by myself this code. I get string '12/05/21' and to write a program that transform it in 'May 12 2021'

Hey I think strtok is your answer

what function of storing should I use ? (How I understood I can't use strncat)

Hey I think strtok is your answer

Something like this ?

If you want to Manually do everything, I guess you are reading from terminal. Scanf a string. Strtok with delim / Get 3 tokens. (Day month year) Transform them as per requirement.

If you want to Manually do everything, I guess you are reading from terminal. Scanf a string. Strtok with delim / Get 3 tokens. (Day month year) Transform them as per requirement.