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Richard Jinks also raised some rounding problems this tries to fix them

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* xpath.c: Richard Jinks also raised some rounding problems
  this tries to fix them
Daniel
This commit is contained in:
Daniel Veillard 2002-03-22 14:14:43 +00:00
parent 4e2df54bb1
commit 56cd18b977
2 changed files with 32 additions and 16 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Fri Mar 22 15:13:49 CET 2002 Daniel Veillard <daniel@veillard.com>
* xpath.c: Richard Jinks also raised some rounding problems
this tries to fix them
Fri Mar 22 13:22:09 CET 2002 Daniel Veillard <daniel@veillard.com>
* xpath.c: Richard Jinks spotted an incoherent memory allocation

43
xpath.c
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@ -6483,15 +6483,19 @@ xmlXPathSumFunction(xmlXPathParserContextPtr ctxt, int nargs) {
*/
void
xmlXPathFloorFunction(xmlXPathParserContextPtr ctxt, int nargs) {
double f;
CHECK_ARITY(1);
CAST_TO_NUMBER;
CHECK_TYPE(XPATH_NUMBER);
#if 0
ctxt->value->floatval = floor(ctxt->value->floatval);
#else
/* floor(0.999999999999) => 1.0 !!!!!!!!!!! */
ctxt->value->floatval = (double)((int) ctxt->value->floatval);
#endif
f = (double)((int) ctxt->value->floatval);
if (f != ctxt->value->floatval) {
if (ctxt->value->floatval > 0)
ctxt->value->floatval = f;
else
ctxt->value->floatval = f - 1;
}
}
/**
@ -6516,8 +6520,12 @@ xmlXPathCeilingFunction(xmlXPathParserContextPtr ctxt, int nargs) {
ctxt->value->floatval = ceil(ctxt->value->floatval);
#else
f = (double)((int) ctxt->value->floatval);
if (f != ctxt->value->floatval)
ctxt->value->floatval = f + 1;
if (f != ctxt->value->floatval) {
if (ctxt->value->floatval > 0)
ctxt->value->floatval = f + 1;
else
ctxt->value->floatval = f;
}
#endif
}
@ -6546,15 +6554,18 @@ xmlXPathRoundFunction(xmlXPathParserContextPtr ctxt, int nargs) {
(ctxt->value->floatval == 0.0))
return;
#if 0
f = floor(ctxt->value->floatval);
#else
f = (double)((int) ctxt->value->floatval);
#endif
if (ctxt->value->floatval < f + 0.5)
ctxt->value->floatval = f;
else
ctxt->value->floatval = f + 1;
if (ctxt->value->floatval < 0) {
if (ctxt->value->floatval < f - 0.5)
ctxt->value->floatval = f - 1;
else
ctxt->value->floatval = f;
} else {
if (ctxt->value->floatval < f + 0.5)
ctxt->value->floatval = f;
else
ctxt->value->floatval = f + 1;
}
}
/************************************************************************