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xml2: Use MSVC constants for NaN and infinity. 

Prevent division by zero exceptions from being thrown,
if they are enabled and calls to xmlXPathInit() are being made.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=52003
Signed-off-by: Bernhard Kölbl <besentv@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Bernhard Kölbl 2021-11-09 22:05:05 +01:00 committed by Alexandre Julliard
parent c6b5f4a406
commit 8923be8f68
1 changed files with 4 additions and 6 deletions
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10
libs/xml2/xpath.c
View File

@ -497,14 +497,12 @@ double xmlXPathNINF;
*
* Initialize the XPath environment
*/
ATTRIBUTE_NO_SANITIZE("float-divide-by-zero")
void
xmlXPathInit(void) {
/* MSVC doesn't allow division by zero in constant expressions. */
double zero = 0.0;
xmlXPathNAN = 0.0 / zero;
xmlXPathPINF = 1.0 / zero;
xmlXPathNINF = -xmlXPathPINF;
/* Use MSVC definitions */
xmlXPathNAN = NAN;
xmlXPathPINF = INFINITY;
xmlXPathNINF = -INFINITY;
}
/**