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mescc: Mes C Library: Prepare for M2-Planet: ntoab. 

* lib/mes/ntoab.c: Rewrite C-constructs not supported by M2-Planet.
This commit is contained in:
Jan Nieuwenhuizen 2019-10-20 19:28:37 +02:00
parent ed29b83575
commit 75895950fb
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GPG Key ID: F3C1A0D9C1D65273
1 changed files with 29 additions and 10 deletions
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39
lib/mes/ntoab.c
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@ -18,20 +18,32 @@
* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
*/
#include <assert.h>
#include <mes/lib.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
char *__itoa_buf;
char *
ntoab (long x, int base, int signed_p)
{
static char itoa_buf[20];
char *p = itoa_buf + 11;
*p-- = 0;
assert(base > 0);
#if 0
if (! __itoa_buf)
__itoa_buf = malloc (20);
p = __itoa_buf + 11;
#else
static char buf[20];
char *p = buf + 19;
#endif
p[0] = 0;
p = p - 1;
assert_msg (base > 0, "base > 0");
int sign_p = 0;
unsigned long u;
if (signed_p && x < 0)
if (signed_p != 0 && x < 0)
{
sign_p = 1;
u = -x;
@ -48,12 +60,19 @@ ntoab (long x, int base, int signed_p)
i = u % base;
u = u / base;
#endif
*p-- = i > 9 ? 'a' + i - 10 : '0' + i;
if (i > 9)
p[0] = 'a' + i - 10;
else
p[0] = '0' + i;
p = p - 1;
}
while (u);
while (u != 0);
if (sign_p && *(p + 1) != '0')
*p-- = '-';
if (sign_p && p[1] != '0')
{
p[0] = '-';
p = p - 1;
}
return p + 1;
}