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Language Reference Starting and Quitting Yorick Getting Help Error Recovery Array Data Types Constants Defining Variables Arithmetic and Comparison Operators Logical Operators Creating Arrays Indexing Arrays Array Conformability Rules Calling Functions Defining Functions Variable Scope Returning from Functions Compound Statements Conditional Execution Loops Function Reference I/O Reference | # Yorick Language Reference ## Array Data Types The basic data types are: `char` one 8-bit byte, from 0 to 255 `short` compact integer, at least 2 bytes `int` logical results- 0 false, 1 true, at least 2 bytes `long` default integer- at least 4 bytes `float` at least 5 digits, 10±38 `double` default real- 14 or 15 digits, usually 10±308 `complex` re and im parts are double `string` 0-terminated text string `pointer` pointer to an array A compound data type compound_type can be built from any combination of basic or previously defined data types as follows: `struct` compound_type `{` type_name_A memb_name_1 `;` type_name_B memb_name_2(dimlist) `;` type_name_C memb_name_3,memb_name_4(dimlist)`; ... }` A dimlist is a comma delimited list of dimension lengths, or lists in the format returned by the `dimsof` function, or ranges of the form `min_index:max_index`. (By default, `min_index` is 1.) For example, the `complex` data type is predefined as: `struct complex { double re, im; }`