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IITian venturing thro' the mysteries of technology .
8 Posted Topics
 | Re: C++ Books Thinking in c++ is a must read for c++ enthusiast . Covers each and every topic extensively . This book has 2 volumes .  |
 | We have two ways 2 access files . Open and its friends and mmap system call . When to use mmap() and what are its advantages?  |
| | I would like to implement a text editor . In the design process i have some doubts . Take a text editor like a notepad . We we will able to move directly to any point in the editor which means that a random access is made possible . I … |
| | Why is the constructor called from top to bottom rather than bottom to top ???? |
| | Hi frenz , I came across get_user_pages() function . I found that this function is used when the there is no need of kernel buffering (buffer cache ) so the data from the device is directly placed in the userspace . But still i dnt know when and how to … |
| | I read that the initialisation of the vptr is done by the default constructor automatically . What happens when u provide implementation for the default constructor . Is the initialisation code added automatically ??? |
| | [CODE=c++] class A { int num; public: A() {} A(int _num) : num(_num) {} A operator + (const A & ob) { return (num+ ob.num); } }; int main() { A ob1(1); A ob2(2); A ob3(3); A ob4=ob1+ob2+ob3; } My doubt is in ob1+ob2+ob3 . First ob1+ob2 is evaluated and … |
| | Hi Friend , Yes it is possible to use system call from the linux modules . But there is a limit on what system calls can be used . sys_open () can be used however sys_mknod can't be used . Check kallsyms in the proc filesystem to get the list … |
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