CodingUnit Programming Tutorials » C Language Reference

Unary and Binary Operator Table

admin — Tue, 22 Jun 2010 20:51:51 +0000

Below you’ll find all the unary and binary operators in one easy table: Operator Name Type ! Logical NOT Unary & Address-of Unary ( ) Cast Operator Unary * Pointer dereference Unary + Unary Plus Unary ++ Increment Unary – Unary negation Unary –– Decrement 1 Unary ~ complement Unary , Comma Binary != Inequality [...]

Unary and Binary Operator Table is a post from: CodingUnit Programming Tutorials

C Reference String Operation: strstr()

admin — Tue, 11 May 2010 20:53:17 +0000

The function strstr() returns a pointer to the first occurrence of x in a string. It is also know as searching for a sub-string in a string. Usage: char * strstr ( const char *, const char * ); char * strstr ( char * str1, const char * str2 ); Return Value A pointer [...]

C Reference String Operation: strstr() is a post from: CodingUnit Programming Tutorials

C Reference function clock()

admin — Thu, 23 Jul 2009 12:19:55 +0000

Usage of clock(): clock_t clock ( void ); Parameters: None. Return Value: The number of clock ticks elapsed since the program start. If the function fails then it will return a value of -1. The clock_t type is defined in ctime.h. Explanation: The function returns the number of clock ticks elapsed since the start of [...]

C Reference function clock() is a post from: CodingUnit Programming Tutorials

C Reference function difftime()

admin — Thu, 23 Jul 2009 12:18:08 +0000

Usage of difftime(): double difftime ( time_t time2, time_t time1 ); Parameters: Time1 and time2 are both time_t objects. Return Value: The difference in seconds between time2-time1 will be returned as a floating point double. Explanation: Calculates the difference in seconds between time1 and time2. Source code example of difftime(): #include <stdio.h> #include <time.h> int [...]

C Reference function difftime() is a post from: CodingUnit Programming Tutorials

C Reference macro NULL

admin — Thu, 23 Jul 2009 12:15:00 +0000

The null pointer macro (NULL) is generally used to signify that a pointer does not point to a object. C Reference macro NULL is a post from: CodingUnit Programming Tutorials

C Reference macro NULL is a post from: CodingUnit Programming Tutorials

C Reference function mktime()

admin — Thu, 23 Jul 2009 12:13:56 +0000

Usage of mktime(): time_t mktime ( struct tm * ptr_time ); Parameters: The pointer ptr_time points to a tm structure that contains a calendar time, which in turn is broken down into its components. Return Value: A time_t value corresponding to the calendar time passed as argument. If an error occurs then the function mktime() [...]

C Reference function mktime() is a post from: CodingUnit Programming Tutorials

C Reference function time()

admin — Thu, 23 Jul 2009 12:12:34 +0000

Usage of time(): time_t time ( time_t * ptr_time ); Parameters: ptr_time is a pointer to an object of type time_t. In this object the time value is stored. It is also allowed to fill in a null pointer, but the a time_t object is still returned by the function time(). Return Value: The current [...]

C Reference function time() is a post from: CodingUnit Programming Tutorials

(ANSI) C Reference – Control the Flow

admin — Thu, 23 Jul 2009 12:08:08 +0000

A look at with which commands you can alter the flow of a C program. You could also take a look at the C If – Switch statement tutorial. You could also take a look at the C Loops tutorial. { } –> Block delimiters ; –> Statement terminator break –> Exit from switch, while, [...]

(ANSI) C Reference – Control the Flow is a post from: CodingUnit Programming Tutorials

(ANSI) C Reference – C Operators

admin — Thu, 23 Jul 2009 12:00:59 +0000

A look at the ANSI C operators and there meaning. ++ –> Increment – –> Decrement +, - –> Plus, minus ! –> Logical not ~ –> Bitwise no * –> Multiply / –> Divide % –> Modulus sizeof –> Size of an object (type) expr –> Cast expression to type <<, >> –> Left [...]

(ANSI) C Reference – C Operators is a post from: CodingUnit Programming Tutorials

(ANSI) C Reference – C Constants

admin — Thu, 23 Jul 2009 11:54:28 +0000

The constants that can be used in the C programing language. F or f -> float (suffix) L or l -> long (suffix) 0X or 0x -> Hexadecimal (prefix zero-x) 0 -> Octal (prefix zero) e -> Exponential form (char, octal, hex) ‘a’, ‘\ooo’, ‘\xhh’ -> Character constant \n -> Newline \r -> Carriage return [...]

(ANSI) C Reference – C Constants is a post from: CodingUnit Programming Tutorials