In the 1970s, Dennis Ritchie Invented C programming language using Unix Operating system. C is being a high-level programming language. It is also called high-level structured programming language. Read More: Write down briefly the history and importance of C language. C language is one of the most popular computer languages today because it is a …
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Basic structure of C programming. To write a C program, we first create functions and then put them together. A C program may contain one or more sections. They are illustrated below.
n C programming language, we use scanf to take input from users in command line. When taking input, we need to use some flag, that we call ‘format codes’ for scanf .
Character Test Functions: In the following table the required functions and their tests are given. Function Test isalnum(c) Is c an alphanumeric character? isalpha(c) Is c an alphabetic character? isdigit(c) Is c a digit? islower(c) Is c a lower case letter? isprint(c) Is c a printable character? ispunct(c) Is c a punctuation mark? isspace(c) Is …
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Input & output operations: The operations which took place in order to take data and make the display of the processed information are known as input & output operations. Management of input & output operations: In C language, in general, user use scanf and printf functions for input and output purpose respectively. scanf can be used …
In C language, define input & output operations and management of them. Read More »
Rules for ++ and – operators: Following are the rules for the increment (++) and decrement (–) operators. Increment (++) and decrement (–) operators are unary operators and they require variable as their operands. When postfix ++ (or –) is used with a variable in an expression, the expression is evaluated first using the original …
Arithmetic operators: The arithmetic operators are +, -, *, /. They work the same way as they do in other languages. There are three types of arithmetic operators which are as follows, . Integer arithmetic: Here operands are integer. For a=14 and b=4, a …
Operator: An operator is a symbol that tells the computer to perform certain mathematical and logical manipulations. Operators are used in programs to manipulate data and variables. Such as, ++, –, <, > etc. Categories of operators: C operators can be classified into a number of categories. They are as follows, Arithmetic operators Logical operators …
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Data types: C language is rich in its data types. ANSI supports three classes of data types. Primary or fundamental data types. Derived data types. User-defined data types. All C compilers support five fundamental data types. Namely, integer (int), character (char), floating point (float), double-precision floating point (double) and void. They are described below. Integer types: Integer are whole …
Variables: A variable is a data name that may be used to store data value. A variable may take different value at different times during execution. Some examples are, average, height, class_strength. Conditions for variables: Variable names may consist of letters, digits and the underscore character, subject to the following conditions. Must consist of only letters, …
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