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C++ Mathematical Expression Library (ExprTk) http://www.partow.net/programming/exprtk/index.html

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Arash Partow
2012-04-21 09:15:01 +10:00
parent a0872d7a6d
commit a60b7646c1
2 changed files with 68 additions and 22 deletions
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56
exprtk_test.cpp
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@ -600,6 +600,9 @@ static const test_t test_list[] =
test_t("clamp(-1,-1.5,+1.0) + clamp(-1,+1.5,+1.0)",0.0),
test_t("inrange(-2,1,+2) == ((-2 <= 1) and (1 <= +2))",1.0),
test_t("inrange(-2,1,+2) == if(({-2 <= 1} and [1 <= +2]),1.0,0.0)",1.0),
test_t("sgn( 0)", 0.0),
test_t("sgn(+3)",+1.0),
test_t("sgn(-3)",-1.0),
test_t("equal($f00(1.1,2.2,3.3),((1.1+2.2)/3.3))",1.0),
test_t("equal($f01(1.1,2.2,3.3),((1.1+2.2)*3.3))",1.0),
test_t("equal($f02(1.1,2.2,3.3),((1.1-2.2)/3.3))",1.0),
@ -1365,16 +1368,26 @@ inline bool run_test09()
for (std::size_t i = 0; i < rounds; ++i)
{
typedef exprtk::expression<T> expression_t;
std::string expression_string = "myfunc0(sin(x*pi),y/2)+"
"myfunc1(sin(x*pi),y/2)+"
"myfunc2(sin(x*pi),y/2)+"
"myfunc3(sin(x*pi),y/2)+"
"myfunc4(sin(x*pi),y/2)+"
"myfunc5(sin(x*pi),y/2)+"
"myfunc6(sin(x*pi),y/2)+"
"myfunc7(sin(x*pi),y/2)+"
"myfunc8(sin(x*pi),y/2)+"
"myfunc9(sin(x*pi),y/2)";
std::string expression_string = "myfunc0(sin(x*pi),y/2)+myfunc1(sin(x*pi),y/2)+"
"myfunc2(sin(x*pi),y/2)+myfunc3(sin(x*pi),y/2)+"
"myfunc4(sin(x*pi),y/2)+myfunc5(sin(x*pi),y/2)+"
"myfunc6(sin(x*pi),y/2)+myfunc7(sin(x*pi),y/2)+"
"myfunc8(sin(x*pi),y/2)+myfunc9(sin(x*pi),y/2)+"
"myfunc0(sin(1*pi),y/2)+myfunc1(sin(1*pi),y/2)+"
"myfunc2(sin(1*pi),y/2)+myfunc3(sin(1*pi),y/2)+"
"myfunc4(sin(1*pi),y/2)+myfunc5(sin(1*pi),y/2)+"
"myfunc6(sin(1*pi),y/2)+myfunc7(sin(1*pi),y/2)+"
"myfunc8(sin(1*pi),y/2)+myfunc9(sin(1*pi),y/2)+"
"myfunc0(sin(x*pi),2/2)+myfunc1(sin(x*pi),2/2)+"
"myfunc2(sin(x*pi),2/2)+myfunc3(sin(x*pi),2/2)+"
"myfunc4(sin(x*pi),2/2)+myfunc5(sin(x*pi),2/2)+"
"myfunc6(sin(x*pi),2/2)+myfunc7(sin(x*pi),2/2)+"
"myfunc8(sin(x*pi),2/2)+myfunc9(sin(x*pi),2/2)+"
"myfunc0(sin(1*pi),2/2)+myfunc1(sin(1*pi),2/2)+"
"myfunc2(sin(1*pi),2/2)+myfunc3(sin(1*pi),2/2)+"
"myfunc4(sin(1*pi),2/2)+myfunc5(sin(1*pi),2/2)+"
"myfunc6(sin(1*pi),2/2)+myfunc7(sin(1*pi),2/2)+"
"myfunc8(sin(1*pi),2/2)+myfunc9(sin(1*pi),2/2)";
T x = T(1.0);
T y = T(2.0);
@ -1408,16 +1421,19 @@ inline bool run_test09()
const T pi = T(3.14159265358979323846);
T result = expression.value();
T expected = mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0);
T expected = T(4.0) *
(
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0) +
mf(sin(x*pi),y/2.0)
);
if (not_equal<T>(result,expected,0.0000001))
{