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Where are blank spaces permitted in C code?

Answer:

C code consists of a number of tokens. A C token is the smallest element that the C compiler does not break down into smaller parts. A token can be a function name, such as main, or a C reserved word. All C words should be written continuously. For example, the expression


void ma in(void): is not legal because no blank characters are allowed between the characters a and i in the word main.
Between tokens, white-space characters (such as blank, tab, or the carriage return) can be inserted, but this is optional. For example, the line

void main(void): is equivalent to void main ( void ) or void main ( void)

In general, it is acceptable to add blanks between tokens but not acceptable to add blanks within tokens.
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