1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
/* Copyright (C) 2000 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
/* There may be prolems include all of theese. Try to test in
configure with ones are needed? */
#pragma once
#include <strings.h>
#include <string.h>
#include <stdlib.h>
#include <stddef.h>
#include <cassert>
#include <limits.h>
#include <ctype.h>
#include <drizzled/visibility.h>
namespace drizzled {
namespace internal {
extern void bmove_upp(unsigned char *dst,const unsigned char *src,size_t len);
/* Conversion routines */
enum my_gcvt_arg_type
{
MY_GCVT_ARG_FLOAT,
MY_GCVT_ARG_DOUBLE
};
DRIZZLED_API double my_strtod(const char *str, char **end, int *error);
DRIZZLED_API double my_atof(const char *nptr);
DRIZZLED_API size_t my_fcvt(double x, int precision, char *to, bool *error);
DRIZZLED_API size_t my_gcvt(double x, my_gcvt_arg_type type, int width, char *to, bool *error);
#define NOT_FIXED_DEC (uint8_t)31
/*
The longest string my_fcvt can return is 311 + "precision" bytes.
Here we assume that we never cal my_fcvt() with precision >= NOT_FIXED_DEC
(+ 1 byte for the terminating '\0').
*/
#define FLOATING_POINT_BUFFER (311 + NOT_FIXED_DEC)
/*
We want to use the 'e' format in some cases even if we have enough space
for the 'f' one just to mimic sprintf("%.15g") behavior for large integers,
and to improve it for numbers < 10^(-4).
That is, for |x| < 1 we require |x| >= 10^(-15), and for |x| > 1 we require
it to be integer and be <= 10^DBL_DIG for the 'f' format to be used.
We don't lose precision, but make cases like "1e200" or "0.00001" look nicer.
*/
#define MAX_DECPT_FOR_F_FORMAT DBL_DIG
extern char *llstr(int64_t value,char *buff);
extern char *ullstr(int64_t value,char *buff);
extern char *int2str(int32_t val, char *dst, int radix, int upcase);
extern char *int10_to_str(int32_t val,char *dst,int radix);
DRIZZLED_API int64_t my_strtoll10(const char *nptr, char **endptr, int *error);
DRIZZLED_API char *int64_t2str(int64_t val,char *dst,int radix);
DRIZZLED_API char *int64_t10_to_str(int64_t val,char *dst,int radix);
/**
Skip trailing space.
@param ptr pointer to the input string
@param len the length of the string
@return the last non-space character
*/
static inline const unsigned char *
skip_trailing_space(const unsigned char *ptr, size_t len)
{
const unsigned char *end= ptr + len;
while (end > ptr && isspace(*--end))
continue;
return end+1;
}
} /* namespace internal */
} /* namespace drizzled */
|