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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
#include <config.h>
#include <drizzled/internal/m_string.h>
namespace drizzled
{
namespace internal
{
/*
Converts integer to its string representation in decimal notation.
SYNOPSIS
int10_to_str()
val - value to convert
dst - points to buffer where string representation should be stored
radix - flag that shows whenever val should be taken as signed or not
DESCRIPTION
This is version of int2str() function which is optimized for normal case
of radix 10/-10. It takes only sign of radix parameter into account and
not its absolute value.
RETURN VALUE
Pointer to ending NUL character.
*/
char *int10_to_str(int32_t val,char *dst,int radix)
{
char buffer[65];
int32_t new_val;
uint32_t uval = (uint32_t) val;
if (radix < 0) /* -10 */
{
if (val < 0)
{
*dst++ = '-';
/* Avoid integer overflow in (-val) for INT32_MIN (BUG#31799). */
uval = (uint32_t)0 - uval;
}
}
char* p = &buffer[sizeof(buffer)-1];
*p = '\0';
new_val= (int32_t) (uval / 10);
*--p = '0'+ (char) (uval - (uint32_t) new_val * 10);
val = new_val;
while (val != 0)
{
new_val=val/10;
*--p = '0' + (char) (val-new_val*10);
val= new_val;
}
while ((*dst++ = *p++) != 0) ;
return dst-1;
}
} /* namespace internal */
} /* namespace drizzled */
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