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4dca917b7e
- All (MariaDB and MySQL) events are now supported
- Added new api functions:
- mariadb_rpl_error: returns error message
- mariadb_rpl_errno: returns error number
- mariadb_rpl_extract_rows: extract values of
ROW_EVENTS
- Added decryption support
- Added uncompression
-
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/* Copyright (C) 2000 Sergei Golubchik
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*/
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#ifndef _decimal_h
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#define _decimal_h
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typedef enum {TRUNCATE=0, HALF_EVEN, HALF_UP, CEILING, FLOOR} decimal_round_mode;
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typedef int32 decimal_digit;
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typedef struct st_decimal {
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int intg, frac, len;
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my_bool sign;
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decimal_digit *buf;
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} decimal;
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int decimal2string(decimal *from, char *to, int *to_len);
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int bin2decimal(const char *from, decimal *to, int precision, int scale);
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int decimal_size(int precision, int scale);
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int decimal_bin_size(int precision, int scale);
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int decimal_result_size(decimal *from1, decimal *from2, char op, int param);
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/* set a decimal to zero */
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#define decimal_make_zero(dec) do { \
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(dec)->buf[0]=0; \
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(dec)->intg=1; \
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(dec)->frac=0; \
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(dec)->sign=0; \
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} while(0)
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/*
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returns the length of the buffer to hold string representation
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of the decimal (including decimal dot, possible sign and \0)
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*/
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#define decimal_string_size(dec) ((dec)->intg + (dec)->frac + ((dec)->frac > 0) + 2)
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/* negate a decimal */
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#define decimal_neg(dec) do { (dec)->sign^=1; } while(0)
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/*
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conventions:
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decimal_smth() == 0 -- everything's ok
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decimal_smth() <= 1 -- result is usable, but precision loss is possible
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decimal_smth() <= 2 -- result can be unusable, most significant digits
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could've been lost
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decimal_smth() > 2 -- no result was generated
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*/
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#define E_DEC_OK 0
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#define E_DEC_TRUNCATED 1
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#define E_DEC_OVERFLOW 2
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#define E_DEC_DIV_ZERO 4
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#define E_DEC_BAD_NUM 8
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#define E_DEC_OOM 16
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#define E_DEC_ERROR 31
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#define E_DEC_FATAL_ERROR 30
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#endif
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