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Co-authored-by: Andrew le Bihan <andy@mcneel.com>
Co-authored-by: Brian Gillespie <brian@mcneel.com>
Co-authored-by: Dale Lear <dalelear@mcneel.com>
Co-authored-by: Giulio Piacentino <giulio@mcneel.com>
Co-authored-by: Greg Arden <greg@mcneel.com>
Co-authored-by: Lars <lars@mcneel.com>
Co-authored-by: Lowell <lowell@mcneelcom>
Co-authored-by: Nathan Letwory <nathan@mcneel.com>
Co-authored-by: Pierre Cuvilliers <pierre@mcneel.com>
Co-authored-by: Tim Hemmelman <tim@mcneel.com>
This commit is contained in:
Bozo The Builder
2020-12-16 05:49:44 -08:00
parent 990401a8f5
commit 488533eb7a
54 changed files with 4026 additions and 898 deletions
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112
opennurbs_math.cpp
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@@ -157,6 +157,118 @@ double ON_TestMathFunction( int function_index, double x, double y )
return z;
}
bool ON_PassesNanTest()
{
bool bPassesAllNanTests = false;
for (;;)
{
const double nan1 = ON_DBL_QNAN;
const double nan2 = ON_DBL_QNAN;
const double zero = 0.0;
const double one = 1.0;
// nan != * and * != nan should alwasy be true
const bool b_NE_test
= nan1 != nan1
&& nan1 != nan2
&& nan1 != zero
&& nan1 != one
&& zero != nan2
&& one != nan2
;
// nan op * and * op nan when op is ==, < > <= >= should all be false
const bool b_EQ_test
= nan1 == nan1
|| nan1 == nan2
|| nan1 == zero
|| nan1 == one
|| zero == nan2
|| one == nan2
;
const bool b_LT_test
= nan1 < nan1
|| nan1 < nan2
|| nan1 < zero
|| nan1 < one
|| zero < nan2
|| one < nan2
;
const bool b_GT_test
= nan1 > nan1
|| nan1 > nan2
|| nan1 > zero
|| nan1 > one
|| zero > nan2
|| one > nan2
;
const bool b_LE_test
= nan1 <= nan1
|| nan1 <= nan2
|| nan1 <= zero
|| nan1 <= one
|| zero <= nan2
|| one <= nan2
;
const bool b_GE_test
= nan1 >= nan1
|| nan1 >= nan2
|| nan1 >= zero
|| nan1 >= one
|| zero >= nan2
|| one >= nan2
;
const bool bPassesIEE754NanCompareTests
= b_NE_test
&& false == b_EQ_test
&& false == b_LT_test
&& false == b_GT_test
&& false == b_LE_test
&& false == b_GE_test
;
if (false == bPassesIEE754NanCompareTests)
{
// some opennurbs code will fail.
ON_ERROR("This compiler does not conform to the IEEE-754 nan compare specification. Some opennurbs code will fail.");
break;
}
const double x[] = {
nan1 + one, one + nan1,
nan1 - one, one - nan1,
nan1 * one, one * nan1,
nan1 / one, one / nan1
};
const size_t xcount = sizeof(x) / sizeof(x[0]);
bool bPassesNanAritmeticTest = true;
for (size_t i = 0; i < xcount && bPassesNanAritmeticTest; ++i)
{
bPassesNanAritmeticTest = x[i] != x[i];
}
if (false == bPassesNanAritmeticTest)
{
// some opennurbs code will fail.
ON_ERROR("This compiler does not conform to the IEEE-754 nan arithmetic specification. Some opennurbs code will fail.");
break;
}
bPassesAllNanTests = true;
break;
}
return bPassesAllNanTests;
}
double ON_DegreesFromRadians(
double angle_in_radians
)