52 lines
1.3 KiB
Plaintext
52 lines
1.3 KiB
Plaintext
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#ifndef BCDHPP
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#define BCDHPP
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#include <stream.hpp>
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#include "errn.hpp"
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extern int _allocerr;
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class bcd {
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unsigned char nbytes, sign, status;
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unsigned char *body;
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int signed_add(bcd&);
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int lmul(bcd&);
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int ldiv(bcd&);
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void ltobcd(long);
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void atobcd(char *);
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public:
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bcd();
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bcd(long, int = 24); // Conversion from a long
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bcd(bcd&); // Copy constructor
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bcd(char *, int = 24); // Conversion from a digit string
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~bcd() { delete body; }
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bcd& operator=(bcd&);
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bcd& operator=(long);
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bcd& operator=(char *);
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bcd operator+(bcd&);
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bcd operator+(long);
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bcd operator-(bcd&);
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bcd operator-(long);
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bcd operator*(bcd&);
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bcd operator*(long);
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bcd operator/(bcd);
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bcd operator/(long);
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bcd operator%(bcd);
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bcd operator%(long);
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bcd& operator++();
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bcd& operator--();
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long tolong();
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operator double(); // Provide one implicit conversion
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// to a built in type
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int test(void); // and an explicit one to avoid
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// ambiguity
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int cmp(bcd&);
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int cmp(long);
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int cmp(double);
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int state() { return(status); }
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void decode(char *);
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};
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ostream& operator<<(ostream&, bcd&);
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#endif
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