EcchiShell v1.0

proc

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mysql

quot. The fractional part is multiplied to 10^9 and stored to to->rem. @param from Decimal value @param to lldiv_t value @retval 0 on success @retval !0 in error */ int decimal2lldiv_t(const decimal_t *from, lldiv_t *to); /** Convert doube to lldiv_t. The integer part is stored in to->quot. The fractional part is multiplied to 10^9 and stored to to->rem. @param from Decimal value @param to lldiv_t value @retval 0 on success @retval !0 in error */ int double2lldiv_t(double from, lldiv_t *to); int decimal_size(int precision, int scale); int decimal_bin_size(int precision, int scale); int decimal_result_size(decimal_t *from1, decimal_t *from2, char op, int param); int decimal_intg(const decimal_t *from); int decimal_add(const decimal_t *from1, const decimal_t *from2, decimal_t *to); int decimal_sub(const decimal_t *from1, const decimal_t *from2, decimal_t *to); int decimal_cmp(const decimal_t *from1, const decimal_t *from2); int decimal_mul(const decimal_t *from1, const decimal_t *from2, decimal_t *to); int decimal_div(const decimal_t *from1, const decimal_t *from2, decimal_t *to, int scale_incr); int decimal_mod(const decimal_t *from1, const decimal_t *from2, decimal_t *to); int decimal_round(const decimal_t *from, decimal_t *to, int new_scale, decimal_round_mode mode); int decimal_is_zero(const decimal_t *from); void max_decimal(int precision, int frac, decimal_t *to); #define string2decimal(A,B,C) internal_str2dec((A), (B), (C), 0) #define string2decimal_fixed(A,B,C) internal_str2dec((A), (B), (C), 1) /* set a decimal_t to zero */ #define decimal_make_zero(dec) do { \ (dec)->buf[0]=0; \ (dec)->intg=1; \ (dec)->frac=0; \ (dec)->sign=0; \ } while(0) /* returns the length of the buffer to hold string representation of the decimal (including decimal dot, possible sign and \0) */ #define decimal_string_size(dec) (((dec)->intg ? (dec)->intg : 1) + \ (dec)->frac + ((dec)->frac > 0) + 2) /* negate a decimal */ #define decimal_neg(dec) do { (dec)->sign^=1; } while(0) /* conventions: decimal_smth() == 0 -- everything's ok decimal_smth() <= 1 -- result is usable, but precision loss is possible decimal_smth() <= 2 -- result can be unusable, most significant digits could've been lost decimal_smth() > 2 -- no result was generated */ #define E_DEC_OK 0 #define E_DEC_TRUNCATED 1 #define E_DEC_OVERFLOW 2 #define E_DEC_DIV_ZERO 4 #define E_DEC_BAD_NUM 8 #define E_DEC_OOM 16 #define E_DEC_ERROR 31 #define E_DEC_FATAL_ERROR 30 #endif