Function xmlXPathIsInf

ThirdParty/libxml2/vtklibxml2/xpath.c:205–216

* xmlXPathIsInf: * @val: a double value * * Checks whether a double is an infinity. * * Returns 1 if the value is +Infinite, -1 if -Infinite, 0 otherwise */

 * Returns 1 if the value is +Infinite, -1 if -Infinite, 0 otherwise
 */
int
xmlXPathIsInf(double val) {
#ifdef isinf
    return isinf(val) ? (val > 0 ? 1 : -1) : 0;
#else
    if (val >= xmlXPathPINF)
        return 1;
    if (val <= -xmlXPathPINF)
        return -1;
    return 0;
#endif
}

#endif /* SCHEMAS or XPATH */