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Fix infinity testcase on windows

This commit is contained in:
William S Fulton 2014-05-29 07:50:21 +01:00
parent b51bc39cf7
commit 664c6cc81e
2 changed files with 21 additions and 7 deletions
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27
Examples/test-suite/infinity.i
View File

@ -10,15 +10,16 @@
#include <math.h>
/* C99 math.h defines INFINITY. If not available, this is the fallback. */
#ifndef INFINITY
#ifdef _MSC_VER
#if !defined(INFINITY)
#if defined(_MSC_VER)
union MSVC_EVIL_FLOAT_HACK
{
unsigned __int8 Bytes[4];
float Value;
};
static union MSVC_EVIL_FLOAT_HACK INFINITY_HACK = {{0x00, 0x00, 0x80, 0x7F}};
const union MSVC_EVIL_FLOAT_HACK INFINITY_HACK = {{0x00, 0x00, 0x80, 0x7F}};
#define INFINITY (INFINITY_HACK.Value)
#define INFINITY_NO_CONST
#endif
#ifdef __GNUC__
@ -33,15 +34,27 @@
#define INFINITY (1e1000)
#endif
#endif
%}
%inline %{
/* This will allow us to bind the real INFINITY value through SWIG via MYINFINITY. Use %rename to fix the name. */
#ifdef INFINITY_NO_CONST
/* To void: error C2099: initializer is not a constant */
double MYINFINITY = 0.0;
void initialise_MYINFINITY(void) {
MYINFINITY = INFINITY;
}
#else
const double MYINFINITY = INFINITY;
void initialise_MYINFINITY(void) {
}
#endif
/* Use of float is intentional because the original bug was in the float conversion due to overflow checking. */
float use_infinity(float inf_val)
{
return inf_val;
}
%}
/* This will allow us to bind the real INFINITY value through SWIG via MYINFINITY. Use %rename to fix the name. */
const double MYINFINITY = INFINITY;
/* Use of float is intentional because the original bug was in the float conversion due to overflow checking. */
float use_infinity(float inf_val);

1
Examples/test-suite/javascript/infinity_runme.js
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@ -1,4 +1,5 @@
var infinity = require("infinity");
infinity.initialise_MYINFINITY();
var my_infinity = infinity.INFINITY;
var ret_val = infinity.use_infinity(my_infinity);