I was studying pointers in arithmetic today, and I got stuck at a point where I didn’t understand a thing. I initialized an integer variable with "10" as its value inside it. I declared another pointer variable (*p) in which I stored the address of "a" and then I added 3 to it. According to ..
Category : pointers
Pointer to array of pointers pointing to nodes I want to create a pointer to an array of pointers, and that pointer inside the array points to nodes. Source: Windows Que..
I checked the size of an int pointer as follows: #include <iostream> using namespace std; int main() { int temp [10]; int *ptr=&temp[0]; cout<<sizeof(ptr)<<endl; } This should give output as 8 according to my knowledge but it gives 4. Source: Windows Que..
I was trying to run a OnnxRuntime Inference on a image file of jpg format using a pretrained Squeezenet model as illustrated in the blog: https://leimao.github.io/blog/ONNX-Runtime-CPP-Inference/ using the script in the link: https://github.com/leimao/ONNX-Runtime-Inference/blob/main/src/inference.cpp . It did work: Now I had a requirement to replace the the input file format from jpg to raw, but upon ..
I have a function as follows int check_inband_status(Port **ePort, Port **wPort, InbandPort *inbandPort) { std::ifstream ring_config_file(RING_CONFIG_FILE); Json::Value ring_config; ring_config_file >> ring_config; (*ePort)->port_id = ring_config["east_port"]["port_id"].asInt(); (*ePort)->port_type = ring_config["east_port"]["port_type"].asString(); (*wPort)->port_id = ring_config["west_port"]["port_id"].asInt(); (*ePort)->port_type = ring_config["west_port"]["port_type"].asString(); ring_config_file.close(); } I have a json file and I am reading it and assigning the values to ePort and wPort. This is ..
So I was watching a "Implementing array as an ADT" video and the person was using C and I’m using C++ so I had to change a little bit of my code. The Code: #include <iostream> class arr{ public: arr(int tSize, int uSize){ total_size = tSize; used_size = uSize; *ptr = new int(tSize); } int ..
I have not used c++ for a long while so maybe I forget some very simple trick. Here is the code and I tried to print the content of *p and got nothing printed out. #include <iostream> using namespace std; int main() { char hello[] = "hello"; char *p = hello; while (*p) { *p ..
So guys I’m trying to learn Polymorphism in C++ and the way I’ve been learning it was with raw pointers or smart pointers but then I’ve been trying to use regular pointers this time and I even tried to add the pointers to a vector from the constructor like this: std::vector<bank_account*> bank_accounts; bank_account::bank_account(std::string Name, int ..
I want to fill a double pointer 2D array with the values from a CSV. I don’t want to read the csv file to get the size of the array before filling it and I want to do it with pointers and not std::vector. My current code is this std::pair<int, int> readFile(const std::string &filename, int ..
I have a problem trying to use pointers. I have installed valgrind and after using it to inspect leaks of memory, I see one due to new int(). However, I have exactly the same number of new and delete.I don’t understand. Can you see the problem ? Thank you for helping #include <iostream> int main() ..
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