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Print positive numbers only. 

Add extra word for sign bit.

CVS patchset: 6767
CVS date: 2003/04/24 12:23:30
This commit is contained in:
jbj 2003-04-24 12:23:30 +00:00
parent d832d12330
commit de92f6ba0e
1 changed files with 20 additions and 9 deletions
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29
python/rpmbc-py.c
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@ -355,12 +355,16 @@ rpmbc_format(rpmbcObject * z, uint32 zbase, int withname)
char * te;
char prefix[5];
char * tcp = prefix;
uint32 zsign;
if (z == NULL || !is_rpmbc(z)) {
PyErr_BadInternalCall();
return NULL;
}
if (_bc_debug)
fprintf(stderr, "*** rpmbc_format(%p,%d,%d):\t", z, zbase, withname), mp32println(stderr, z->n.size, z->n.data);
assert(zbase >= 2 && zbase <= 36);
if (withname)
@ -368,18 +372,25 @@ rpmbc_format(rpmbcObject * z, uint32 zbase, int withname)
else
i = 0;
/* XXX FIXME: mp32bitcnt normalize with signed values. */
nt = mp32mszcnt(z->n.size, z->n.data)/32;
zsize = z->n.size - nt;
zdata = z->n.data + nt;
if (mp32z(zsize, zdata))
zsign = mp32msbset(z->n.size, z->n.data);
nt = mp32bitcnt(z->n.size, z->n.data);
if (nt == 0) {
zbase = 10; /* '0' in every base, right */
else if (mp32msbset(zsize, zdata)) {
nt = 1;
zsize = 1;
zdata = &zsign;
} else if (zsign) {
*tcp++ = '-';
i += 1; /* space to hold '-' */
zsize = (nt + 31)/32;
zdata = alloca(zsize * sizeof(*zdata));
mp32setx(zsize, zdata, zsize, z->n.data + (z->n.size - zsize));
mp32neg(zsize, zdata);
} else {
zsize = (nt + 31)/32;
zdata = z->n.data + (z->n.size - zsize);
}
nt = mp32sizeinbase(zsize, zdata, zbase);
i += nt;
@ -678,7 +689,7 @@ fprintf(stderr, "*** after %p[%d]\n", pdata, psize);
/* Calculate size of result. */
if (xbits == 0) xbits = 1;
nsize = (((*pdata) * xbits)+31)/32;
nsize = (((*pdata) * xbits) + 31)/32 + 1; /* 1 word for sign bit */
size = ((15 * xbits)+31)/32;
if (_bc_debug)