What are C operators and punctuation?

Operators are used to describe operations that apply to one or more objects. It makes sense mainly in expressions, but also in declarations. It is usually a short sequence using non-alphanumeric characters.

A punctuation mark is used to separate or terminate a list of elements.

The operators and punctuation marks of C language are as follows −

...   &&  -=  >=   ~   +   ;  ]

<<=   &=  ->  >>   %   ,   <  ^
>>=   *=  /=  ^=   &   -   =  {

!=    ++  <<  |=   (   .   >  |

%=    +=  <=  ||   )   /   ?  }

##    --  ==  !   *   :   [   #

Please note that some sequences are used as operators and punctuation marks, such as *, =, :, # and ,.

Some punctuation marks must be used in pairs, such as (), [], {}.

When parsing the input text, the compiler tries to build the longest sequence possible as a token, so when parsing a b, the compiler will recognize the following:

a ++ ++ + b which is not a valid construct

The compiler does not The following will be considered −

a ++ + ++ b which may be valid

The above is the detailed content of What are C operators and punctuation?. For more information, please follow other related articles on the PHP Chinese website!