roman10
Currently viewing the category:
"C/C++"
The Usage of memset
memset has the following definition,
void* memset(void* s, int c, size_t n);
The method set each of the first n bytes of memory pointed by s to c and return s. Note that although the second parameter has type of int, it’s converted to unsigned char before the memory operation [...]
This post doesn’t provide details about how Linux socket works, its design etc. It mainly for providing source code of simple TCP socket client and server in C. I’m writing this because I found myself need simple TCP client and server for testing from time to time.
1. The TCP Server Code
You can [...]
Stack is a data structure that used widely in computer programming. The implementation of stack is simple, and its FILO (First-In-Last-Out) rule with PUSH/POP/TOP operations are also straight forward.
This article focuses on a special stack used in C programming runtime memory environment, called Call Stack.
Call Stack stores the information [...]
Many Linux programs are command line based and sometimes the options can be complicated. Luckily, the GNU C library glibc provides some APIs to simplify the command line option parsing.
Specifically, there’re two methods for parsing the commands, getopt and getopt_long. getopt() is used to parse the single character option, and getopt_long() works with [...]
This is a follow up of the previous entry How to Reset USB Device in Linux. The previous blog covers a method to reset usb device using ioctl system call. This blog gives an alternative approach to reset usb device, using libusb.
libusb is a cross-platform library giving user level application [...]
There’re two common ways of visiting all nodes of a graph, depth-first search and breadth-first search. These two graph traversal approaches relate to two popular data structures, stack and queue respectively. (One can also do it in a recursive manner. It’s more intuitive but less efficient.)
This post covers depth-first search with a stack data [...]
There’re two common ways of visiting all nodes of a graph, depth-first search and breadth-first search. These two graph traversal approaches relate to two popular data structures, stack and queue respectively. (One can also do it in a recursive manner. It’s more intuitive but less efficient.)
This post covers breadth-first search with a queue data [...]
Side Note: First draft on Mar 26 2011. Back in undergraduate, I was in a programming competition team. We were writing small programs that have to be extremely efficient as there’re time constraint for running these programs. One night, a teammate of mine told me that “you know, pre-increment is more efficient than post-increment”.
Well. [...]
Side Note: I found this on my computer. I wrote this some time in 2009. Just to put everything to a single place.
Insertion sort:
Basic Idea:
1. starting from index 1, going through the array and every iteration insert the current element into a proper position at the already sorted [...]
C provides six bitwise operations. They can apply to integer data type only, including char, short, int and long. The advantage of using bitwise operators is speed. It generally makes your program faster.
The six bitwise operators are, & AND (eg. 0011&0101 = 0001) | OR (inclusive, eg. 0011|0101 = 0111) ^ XOR (exclusive, eg. [...]
40% Discount on My Book — Android NDK Cookbook
Android NDK Cookbook ebook 40% discount with promotion code MREANC40 at Packt Publishing The promotion code is valid until 15th June.Categories
- Android Apps (18)
- Android Audio Editor (1)
- TS 2 (3)
- Video Converter Android (8)
- Video2Gif (1)
- Android Tutorial (27)
- Android Dev Tools (1)
- API illustrated (8)
- Multimedia API (3)
- ffmpeg on Android (4)
- NDK (6)
- UI (6)
- Animation (2)
- Code Snippet (2)
- Coding Beyond Technique (18)
- a word, a world (4)
- Bug Rectified (4)
- Programming Habit (1)
- Software as a Career (1)
- Software as User Experience (1)
- Compilers and Related (2)
- ELF (2)
- Computer Languages (31)
- C/C++ (13)
- Java (9)
- JavaScript (2)
- PHP (1)
- Python (8)
- Data Structure & Algorithms (29)
- Bits (1)
- Data Structure (5)
- Integers (10)
- BigInteger (1)
- Prime (4)
- Search (3)
- Sorting (5)
- Strings (5)
- Database (1)
- SQLite (1)
- Digital Signal Processing (33)
- Distributed Systems (17)
- Apache Cassandra (6)
- Apache Hadoop (8)
- Apache Avro (3)
- Apache Nutch (3)
- Apache Solr (1)
- Linux Study Notes (40)
- crontab (1)
- Linux Kernel Programming (8)
- Linux Programming (12)
- IPC (2)
- Linux Network Programming (5)
- Linux Signals (2)
- Linux Shell Scripting (1)
- ssh (3)
- Machinery (30)
- misc (1)
- My Ideas (1)
- My Project (3)
- Mobile Caching (1)
- Selective Decoding (2)
- My Publication (1)
- My Readings (1)
- Networking (15)
- Program for Performance (8)
- Uncategorized (1)
- Virtual Machine (2)
- Web Dev (8)
- web components (3)
- Android Apps (18)
Recent Comments
Archives
- May 2013 (2)
- April 2013 (1)
- March 2013 (4)
- December 2012 (2)
- November 2012 (6)
- October 2012 (6)
- September 2012 (3)
- August 2012 (13)
- July 2012 (15)
- June 2012 (3)
- May 2012 (8)
- April 2012 (4)
- March 2012 (13)
- February 2012 (19)
- January 2012 (9)
- December 2011 (11)
- November 2011 (12)
- October 2011 (4)
- September 2011 (12)
- August 2011 (16)
- July 2011 (15)
- June 2011 (6)
- May 2011 (10)
- April 2011 (13)
- March 2011 (20)
- February 2011 (4)
- November 2010 (2)
- May 2010 (1)
- April 2010 (1)
- February 2010 (1)
