Hollerith cards were named after the elder Herman Hollerith, as were Hollerith constants ( also sometimes called Hollerith strings ), an early type of string constant declaration ( in computer programming ).
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The'Hello, world'string constant above displays, because display is the default action on any expression for which no action is specified explicitly ( e . g . assignment, function parameter ).
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However, the initializer can use only constants like string constants and other literals, and is not allowed to use non-constant elements like variable names, whether the initializer elements are declared const or not, or whether the static duration variable is being declared const or not.
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In C, string constants ( literals ) are surrounded by double quotes ( " ), e . g . " Hello world ! " and are compiled to an array of the specified char values with an additional null terminating character ( 0-valued ) code to mark the end of the string.
