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In next articles on C Programming Tutorial we will cover more topics on C programming language. It differentiates any tokens from other while compiling and when a user sees the code printf (“Enter the name :”) Whitespaces are used to separate two identifiers, keywords, any tokens or to have a blank line, new line, etc. defines an equivalent notation for ‘=’ as ‘EQ’. Whenever the compiler sees EQ in the code, it replaces it by ‘=’*/ * defines an equivalent notation for ‘=’ as ‘EQ’. In C comments are written within ‘/*’ and ‘*/’ for multiline comments and single-line comments are written after ‘//’. When the compiler encounters comments, it ignores those lines and proceeds with the next compliable code. They are used to give information about the code. printf (“Enter the name :”) Ĭomments are the non-compliable lines of code in the program. It indicates the end of the line of the code. SemicolonsĪll codes in C have to be terminated by a semicolon. For example, printf, scanf, if, else, for, while, loop, switch, int, float, char, double, struct, const, goto, return, typedef, etc. These are the reserved words in C, which are used to identify the variables or perform some functions within the program. Var1, var2, _sum, str_name, strName, fltValue, intNumValue, avg_std_100 Keywords But it does not allow ‘$’ and ‘%’ to be used within the identifier. It is then followed by any alphabets (upper or lower case) or digits. The standard format for any identifier name is, to begin with alphabets (upper or lower case) or underscore (_). These are the variable names, function names or any other user-defined names within the program. Here printf, ‘(‘, ‘Enter the name:’, ‘)’ and ‘ ’ are the tokens. For example, printf, curly braces (), round braces ((,)), semicolon ( ), any string statements inside printf or code are known as tokens. Basic Syntax in C Programming TokensĪll identifiers, keywords, symbols, literals, etc are together known as tokens. It mainly composed of tokens, identifiers, keywords, semicolons, comments, and whitespaces.

In this section, let see basic syntax rules that we need to follow while writing a C program. This C Programming Tutorial is written to help you understand the basic concepts of C programming language.