68 lines
2.8 KiB
C
68 lines
2.8 KiB
C
/** @file numericx.h
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* Numericx library header file.
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*/
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#ifndef _NUMERICX_H
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#define _NUMERICX_H
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#include <stdbool.h>
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#define PROG_NAME "numericx"
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/* ||DATA STRUCTURE|| */
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/**
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* @brief Numeral structure
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*
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* This struct is in use to apply our operations on the number.
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* The number are converted to this struct, the operations are applied,
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* and on the end, the resulting number is converted from this struct.
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*/
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typedef struct NumeralPtr
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{
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char const* symbol; /**< a pointer to the glyph/numeral/symbol of this digit. */
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struct NumeralPtr *next; /**< a pointer to the next digit */
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struct NumeralPtr *previous; /**< a pointer to the previous digit */
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} numeral_ptr;
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/* ||FUNCTIONS|| */
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/**
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* @brief Free numericx result.
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*
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* Free up the result string of numericx_translate(),
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* after we are done with it.
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*
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* @param string - char pointer to be free.
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*/
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void
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numericx_free(char* string);
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/**
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* @brief Translate string to a different numerical system.
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*
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* After definition of the 'from' numerical system proprieties and the
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* 'to' numerical system proprieties, will be translate 'number' from the
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* 'from' to the 'to' numerical system, resulting in a string.
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*
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* @param from - string with all the numerals of the number's numerical system.
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* @param from_units_on_the_end - does the translate 'from' numerical system have units on the end (on the right)?
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* @param from_first_number_void - does the translate 'from' numerical system start counting on the second number?
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* @param from_infinite_base - is the translate 'from' numerical system first numeral infinite? For example, if first numeral is 'A', then does 'A' == 'AA' == 'AAA' == 'AAAA' ... ?
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* @param to - string with all the numerals of the resulting number's numerical system.
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* @param to_units_on_the_end - does the translate 'to' numerical system have units on the end (on the right)?
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* @param to_first_number_void - does the translate 'to' numerical system start counting on the second number?
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* @param to_infinite_base - is the translate 'to' numerical system first numeral infinite? For example, if first numeral is 'A', then does 'A' == 'AA' == 'AAA' == 'AAAA' ... ?
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* @param number - number of the 'from' numerical system, to be translated into the 'to' numerical system.
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* @param result_string - string to where to store the result.
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*
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* @return EINVAL if argument of result_string is not NULL.
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* @return EDOM if number doesn't belong to the 'from' numerical system.
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* @return ERANGE if the resulting number cannot be represented, because of a 'from' void number and a lack of void number in 'to'.
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* @return EXIT_SUCCESS in case of success.
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*/
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int
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numericx_translate(char* from, bool from_units_on_the_end, bool from_first_number_void, bool from_infinite_base, char* to, bool to_units_on_the_end, bool to_first_number_void, bool to_infinite_base, char* number, char** result_string);
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#endif
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