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/* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* There may be prolems include all of theese. Try to test in
configure with ones are needed? */
/* This is needed for the definitions of strchr... on solaris */
#ifndef DRIZZLED_INTERNAL_M_STRING_H
#define DRIZZLED_INTERNAL_M_STRING_H
#if defined(HAVE_STRINGS_H)
#include <strings.h>
#endif
#if defined(HAVE_STRING_H)
#include <string.h>
#endif
#include <stdlib.h>
#include <stddef.h>
#include <cassert>
#include <limits.h>
#include <ctype.h>
/* This is needed for the definitions of memcpy... on solaris */
#if defined(HAVE_MEMORY_H) && !defined(__cplusplus)
#include <memory.h>
#endif
namespace drizzled
{
namespace internal
{
extern void bmove_upp(unsigned char *dst,const unsigned char *src,size_t len);
extern void bchange(unsigned char *dst,size_t old_len,const unsigned char *src,
size_t new_len,size_t tot_len);
extern char *strfield(char *src,int fields,int chars,int blanks,
int tabch);
extern char *strfill(char * s,size_t len,char fill);
extern char *strkey(char *dst,char *head,char *tail,char *flags);
extern char *strmake(char *dst,const char *src,size_t length);
extern char *strsuff(const char *src,const char *suffix);
extern char *strxcat(char *dst,const char *src, ...);
extern char *strxmov(char *dst,const char *src, ...);
extern char *strxcpy(char *dst,const char *src, ...);
extern char *strxncat(char *dst,size_t len, const char *src, ...);
extern char *strxncpy(char *dst,size_t len, const char *src, ...);
/* Conversion routines */
typedef enum {
MY_GCVT_ARG_FLOAT,
MY_GCVT_ARG_DOUBLE
} my_gcvt_arg_type;
double my_strtod(const char *str, char **end, int *error);
double my_atof(const char *nptr);
size_t my_fcvt(double x, int precision, char *to, bool *error);
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
/*
The maximum possible field width for my_gcvt() conversion.
(DBL_DIG + 2) significant digits + sign + "." + ("e-NNN" or
MAX_DECPT_FOR_F_FORMAT zeros for cases when |x|<1 and the 'f' format is used).
*/
#define MY_GCVT_MAX_FIELD_WIDTH (DBL_DIG + 4 + cmax(5, MAX_DECPT_FOR_F_FORMAT))
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);
int64_t my_strtoll10(const char *nptr, char **endptr, int *error);
extern char *int64_t2str(int64_t val,char *dst,int radix);
extern 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 */
#endif /* DRIZZLED_INTERNAL_M_STRING_H */
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