Space, tab, linefeed, carriage-return, formfeed, vertical-tab, newline and comments are called white-space characters because they serve the same purpose as the spaces between words and lines on a printed page - they make reading easier. When parsing code, the C compiler ignores white-space characters unless you use them as separators or as components of character constants or string literals. Use white-space characters to make a program more readable.
A blank line or a line containing comment is ignored by C compiler. Whitespace separates one element in a statement from another. In the following statement –
there must be at least one whitespace character (usually a space) between int and age for the compiler to be able to distinguish them. In the following statement –
no whitespace characters are necessary between x and =, or between = and y. But a space between them increases readability.
A blank line or a line containing comment is ignored by C compiler. Whitespace separates one element in a statement from another. In the following statement –
int age;
there must be at least one whitespace character (usually a space) between int and age for the compiler to be able to distinguish them. In the following statement –
x = y + z;
no whitespace characters are necessary between x and =, or between = and y. But a space between them increases readability.
Related topics:
Tokens in C | Character Set in C | Trigraph Characters in C | Extended Characters in C | Escape Sequence in C | Comments in C | Keywords in C | Identifiers in C | Declaration in C
List of topics: C Programming
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