What is the sizeof operator?
The sizeof operator, returns the size of an expression, or of an object type in C. An expression is for example 1 + 2, an object is any region of memory, and a … Read More
Category: c
Conversion and operations on the non arithmetic data types in C
What are the different C data types ?
The C standard groups its available types , in two large categories : the object types , and the function types .
The object types , in C are :
Integer… Read More
What is widening , truncation , promotion , and conversion between , the different C , arithmetic data types ?
The arithmetic data types in C , are the integer types , such as int or unsigned long , and the floating point types , such as float , or long double .
Conversion of the integer types
What
… Read MoreWhat is char , signed char , unsigned char , and character literals in C ?
What is char , unsigned char , and signed char ?
The char type in C , has a size of 1 byte . The size of a byte , as defined on a given machine , can be … Read More
What is a float , double , long double and a floating point literal in C ?
What is float , double , long double ?
To store numbers in a computer , an algorithm must be used . The C standard does not specify the algorithm , or the encoding to be used , for … Read More
What is an enum in C ?
An enum in C is used to enumerate things . For example , to enumerate the days of the week , such as Monday , Tuesday or Wednesday , or to enumerate error codes , such as OK or … Read More
What is an identifier in c ?
What is an identifier ?
An identifier , is used to denote an object type in C . An object in C is a region of memory , used for data storage .
int x ; /* x is… Read More
The compilation process of a c source file
Compiling a C source file , into an executable program , involves multiple steps . They are as follow :
Preparation of the source files
The first step in compiling a C source file , is the preparation of the … Read More
What is a character , wide character , and multibyte character in c ?
Characters
A char is a region of memory , formed of bits , large enough to hold any character of the basic execution character set . A char is the encoding , of the basic execution character set .
The … Read More
C : source , execution , basic , and extended character sets
There are two character sets in C . The first one is the source character set , which is the set of characters , in which a C source file , is written .
So the source character set … Read More