#include<stdio.h> #include<stdlib.h> #include<sys/types.h> #include<unistd.h> #include<wait.h> #define BUFF 20 int main() { char buff[BUFF]; int Pid = 0, i, ret, returnval; Pid = fork(); if(Pid == 0) { for(;;) { for(i=0; i<BUFF; i++) buff[i] = ‘\0’; write(STDOUT_FILENO, “SHELL>”, 6); read(STDIN_FILENO, buff, BUFF); if(strcmp(buff,”exit\n”) == 0) exit(100); ret = system(buff); printf(“exit status of the command = %d\n”, […]

Direct access to memory layout through pointer manipulation Concise syntax, small set of keywords Block structured language Some encapsulation of code, via functions Type checking (pretty weak) C is portable(program written for one computer can be run on another computer with little modification) C has an ability to extend itself. C was invented to write […]

In C++ programming, understanding type conversion is essential for precise mathematical computations. One common real-world application is converting angles from degrees to radians. This is especially useful in trigonometry, graphics, physics simulations, and embedded systems. In this tutorial, we’ll write a C++ program to convert degrees to radians using type conversion to ensure accuracy in […]

Operator overloading in C++ allows you to redefine how operators work with user-defined types. In this tutorial, we will write a C++ program to overload the + operator for a custom string class to concatenate two strings. This is a classic use case of operator overloading that enhances the readability and functionality of your C++ […]