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mirror of https://gitlab.gnome.org/GNOME/libxml2.git synced 2024-12-25 23:21:26 +03:00

xpath: Fix build without LIBXML_XPATH_ENABLED

Move static function declaration into XPATH block. Also move comparison
functions.

Fixes #537.
This commit is contained in:
Nick Wellnhofer 2023-05-08 23:12:33 +02:00
parent 235b15a590
commit 01723fc68f

216
xpath.c
View File

@ -145,6 +145,114 @@
* any use of the macros IS_ASCII_CHARACTER and IS_ASCII_DIGIT)
*/
#if defined(LIBXML_XPATH_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)
/************************************************************************
* *
* Floating point stuff *
* *
************************************************************************/
double xmlXPathNAN = 0.0;
double xmlXPathPINF = 0.0;
double xmlXPathNINF = 0.0;
/**
* xmlXPathInit:
*
* DEPRECATED: Alias for xmlInitParser.
*/
void
xmlXPathInit(void) {
xmlInitParser();
}
/**
* xmlInitXPathInternal:
*
* Initialize the XPath environment
*/
ATTRIBUTE_NO_SANITIZE("float-divide-by-zero")
void
xmlInitXPathInternal(void) {
#if defined(NAN) && defined(INFINITY)
xmlXPathNAN = NAN;
xmlXPathPINF = INFINITY;
xmlXPathNINF = -INFINITY;
#else
/* MSVC doesn't allow division by zero in constant expressions. */
double zero = 0.0;
xmlXPathNAN = 0.0 / zero;
xmlXPathPINF = 1.0 / zero;
xmlXPathNINF = -xmlXPathPINF;
#endif
}
/**
* xmlXPathIsNaN:
* @val: a double value
*
* Returns 1 if the value is a NaN, 0 otherwise
*/
int
xmlXPathIsNaN(double val) {
#ifdef isnan
return isnan(val);
#else
return !(val == val);
#endif
}
/**
* xmlXPathIsInf:
* @val: a double value
*
* 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 */
#ifdef LIBXML_XPATH_ENABLED
/*
* TODO: when compatibility allows remove all "fake node libxslt" strings
* the test should just be name[0] = ' '
*/
#ifdef DEBUG_XPATH_EXPRESSION
#define DEBUG_STEP
#define DEBUG_EXPR
#define DEBUG_EVAL_COUNTS
#endif
static xmlNs xmlXPathXMLNamespaceStruct = {
NULL,
XML_NAMESPACE_DECL,
XML_XML_NAMESPACE,
BAD_CAST "xml",
NULL,
NULL
};
static xmlNsPtr xmlXPathXMLNamespace = &xmlXPathXMLNamespaceStruct;
#ifndef LIBXML_THREAD_ENABLED
/*
* Optimizer is disabled only when threaded apps are detected while
* the library ain't compiled for thread safety.
*/
static int xmlXPathDisableOptimizer = 0;
#endif
static void
xmlXPathNodeSetClear(xmlNodeSetPtr set, int hasNsNodes);
@ -475,114 +583,6 @@ int wrap_cmp( xmlNodePtr x, xmlNodePtr y );
#include "timsort.h"
#endif /* WITH_TIM_SORT */
#if defined(LIBXML_XPATH_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)
/************************************************************************
* *
* Floating point stuff *
* *
************************************************************************/
double xmlXPathNAN = 0.0;
double xmlXPathPINF = 0.0;
double xmlXPathNINF = 0.0;
/**
* xmlXPathInit:
*
* DEPRECATED: Alias for xmlInitParser.
*/
void
xmlXPathInit(void) {
xmlInitParser();
}
/**
* xmlInitXPathInternal:
*
* Initialize the XPath environment
*/
ATTRIBUTE_NO_SANITIZE("float-divide-by-zero")
void
xmlInitXPathInternal(void) {
#if defined(NAN) && defined(INFINITY)
xmlXPathNAN = NAN;
xmlXPathPINF = INFINITY;
xmlXPathNINF = -INFINITY;
#else
/* MSVC doesn't allow division by zero in constant expressions. */
double zero = 0.0;
xmlXPathNAN = 0.0 / zero;
xmlXPathPINF = 1.0 / zero;
xmlXPathNINF = -xmlXPathPINF;
#endif
}
/**
* xmlXPathIsNaN:
* @val: a double value
*
* Returns 1 if the value is a NaN, 0 otherwise
*/
int
xmlXPathIsNaN(double val) {
#ifdef isnan
return isnan(val);
#else
return !(val == val);
#endif
}
/**
* xmlXPathIsInf:
* @val: a double value
*
* 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 */
#ifdef LIBXML_XPATH_ENABLED
/*
* TODO: when compatibility allows remove all "fake node libxslt" strings
* the test should just be name[0] = ' '
*/
#ifdef DEBUG_XPATH_EXPRESSION
#define DEBUG_STEP
#define DEBUG_EXPR
#define DEBUG_EVAL_COUNTS
#endif
static xmlNs xmlXPathXMLNamespaceStruct = {
NULL,
XML_NAMESPACE_DECL,
XML_XML_NAMESPACE,
BAD_CAST "xml",
NULL,
NULL
};
static xmlNsPtr xmlXPathXMLNamespace = &xmlXPathXMLNamespaceStruct;
#ifndef LIBXML_THREAD_ENABLED
/*
* Optimizer is disabled only when threaded apps are detected while
* the library ain't compiled for thread safety.
*/
static int xmlXPathDisableOptimizer = 0;
#endif
/************************************************************************
* *
* Error handling routines *