Tag pointers

Solved

[Solved] i have been on this question for quaring the document for two days straight, and it is not working. don’t want to cheat, can you point the problem

When processing regular characters (final else clause) you read additional input instead of operating over text, i.e. instead of: scanf(“%c”, &document[parano][sentno][wordno][charno]); printf(“%c\n”, document[parano][sentno][wordno][charno]); charno++; you want to do: document[parano][sentno][wordno][charno++] = text[i]; By the time we hit text[i] == ‘ ‘…

Kirat
March 31, 2023

Solved

[Solved] i have been on this question for quaring the document for two days straight, and it is not working. don’t want to cheat, can you point the problem

Introduction If you’ve been struggling with a document for two days and can’t seem to get it to work, you’re not alone. Many people have difficulty understanding the complexities of document formatting and troubleshooting. Fortunately, there are many resources available…

Kirat
March 31, 2023

Solved

[Solved] How to grow a pointer or an array in C at runtime (without knowing the end length at compile time)

OP’s mostly has it. It is just printing the first element each time. // printf(“%d”, *arr); printf(“%d”, arr[n-1]); is it possible to do it with an array? No. In C an array cannot change size once it is defined. The…

Kirat
March 31, 2023

Solved

[Solved] Allocate memory on pointed pointer to char

This answer is based on the assumption that you do proper handling of your pointers between the part where you allocate memory for 1 element each and where you try to reallocate the memory. This part // realloc to correct…

Kirat
March 31, 2023

Solved

[Solved] Pointer and address in C [closed]

If a is an int variable, is it always true that *&a == a ? It should be, but I can’t find a definitive statement to that effect. If p is an int* variable, is it always true that p…

Kirat
March 11, 2023

Solved

[Solved] Result should be 11 after incrementing, it is 12, why? [closed]

*p1 refers to the value pointed by the pointer p1. (*p1)++ will increment the value of n by 1 and (*p2)++ will again do the increment on n, since it is pointing to the same location of p1. So the…

Kirat
March 10, 2023

Solved

[Solved] Please explain the output of this program based on pointers and strings?

Explanation line by line: Striker=Track; Sets Striker to point to the memory of Track, so Striker[0] would be equals to Track[0]. Track[1]+=30; Increases the value of the second index of Track by 30 (Track[1] = 50). cout<<“Striker >”<<*Striker<<endl; *Striker is…

Kirat
March 2, 2023

Solved

[Solved] A short C++ program about the pointer

An array of arrays like yours look like this in memory +———+———+———+———+———+———+ | x[0][0] | x[0][1] | x[0][2] | x[1][0] | x[1][1] | x[1][2] | +———+———+———+———+———+———+ The location of x, x[0] and x[0][0] is all the same. Also, arrays naturally…

Kirat
March 1, 2023

Solved

[Solved] How to delete a pointer but not delete the object which the pointer point to? C++ [closed]

A pointer will just go out of scope. You don’t need to “delete” a pointer. You only need to free the memory a pointer points to. 1 solved How to delete a pointer but not delete the object which the…

Kirat
February 17, 2023

Solved

[Solved] Generic class with type as pointer to object of another class – NOT WORKING [closed]

Your code should compile if you: choose one of class/struct in types and one of class/typename in template parameters use semicolons after class or struct definitions write > > instead of >> in nested templates (pre C++11) 5 solved Generic…

Kirat
February 14, 2023

Solved

[Solved] Please solve these errors. I’m using dev++ compiler [closed]

The first error is a typo you wrote pememory. The second error appears because you didn’t code any transformation between Float and ptrFloat. You should add a copy constructor to Float: Float(const Float& a) : Float(*a.fmem_top) {} And then a…

Kirat
February 13, 2023

Solved

[Solved] Using Malloc() to create an integer array using pointer [closed]

It can be inferred from the error message, intarr_create(): null pointer in the structure’s data field, that data fields of each struct are expected to be allocated. intarr_t* intarr_create(size_t len){ intarr_t* ia = malloc(sizeof(intarr_t) * len); size_t i; for(i =…

Kirat
February 13, 2023

Solved

[Solved] While loop is executing code I don’t understand

// L is a data structure also known as a linked list. It has: struct L { int d; // a value L *p; // a pointer to the next element } // it creates the first element of the…

Kirat
February 13, 2023

Solved

[Solved] Changing vector in function by pointer

The function does not make sense. For starters it is unclear why you are using a pointer to the vector instead of a reference to the vector. Nevertheles, this declaration vector<unsigned char> vec(5); does not reseeve a memory for the…

Kirat
February 12, 2023

Solved

[Solved] Deciding how much memory to dynamically allocate based on user input

Here is a description of malloc(). It takes a parameter size, in bytes. So if the user entered 5 words, then you need to first allocate an array big enough to store 5 pointers. Eg. char ** words = NULL;…

Kirat
February 11, 2023