Here is the full summary about Linux operating system Linux is a free OS whose kernel was built by Linus Trovalds and friends A Linux distribution consists of the kernel with source code along with a large collection of applications, libraries, scripts, etc. C programs under Linux can be compiled using the popular gcc compiler … Read more
Hungarian Notation is a variable-naming convention so called in the honor of the legendary Microsoft programmer Charles Simonyi. According to this convention the variable name begins with a lower case letter or letters that denotes the data type of the variable. For example, the sz prefix in szCmdLine stands for ‘string terminated by zero’; the … Read more
One of C’s powerful features is a set of bit manipulation operators. These permit the programmer to access and manipulate individual bits within a piece of data The various Bitwise Operators in C Operator Meaning ~ One’s complement >> Right shift << Left shift & Bitwise AND ! Bitwise OR ^ Bitwise XOR(Exclusive OR) The … Read more
ftell() function c Functions ftell() and fseek() are important in a program performing file manipulations. Function ftell() returns the current position of the file pointer in a stream. The return value is 0 or a positive integer indicating the byte offset from the beginning of an open file. A return value of -1 indicates an … Read more
The functions fread() and fwrite() are a somwhat complex file handling functions used for reading or writing chunks of data containing NULL characters (‘\0’) terminating strings The function prototype of fread() and fwrite() is size_t fread(void *ptr, size_t sz, size_t n, FILE *fp)size_t fwrite(const void *ptr, size_t sz, size_t n, FILE *fp); Example of fread() … Read more
fopen() function in C accepts two arguments as strings. The first argument denotes the name of the file to be opened and the second signifies the mode in which the file is to be opened. The second argument can be any of the following: File Mode Description r Open a text file for reading w … Read more