picoc/cstdlib/math.c
2015-06-10 14:37:21 -05:00

183 lines
7.2 KiB
C

/* */
#include "../interpreter.h"
static double M_EValue = 2.7182818284590452354; /* e */
static double M_LOG2EValue = 1.4426950408889634074; /* log_2 e */
static double M_LOG10EValue = 0.43429448190325182765; /* log_10 e */
static double M_LN2Value = 0.69314718055994530942; /* log_e 2 */
static double M_LN10Value = 2.30258509299404568402; /* log_e 10 */
static double M_PIValue = 3.14159265358979323846; /* pi */
static double M_PI_2Value = 1.57079632679489661923; /* pi/2 */
static double M_PI_4Value = 0.78539816339744830962; /* pi/4 */
static double M_1_PIValue = 0.31830988618379067154; /* 1/pi */
static double M_2_PIValue = 0.63661977236758134308; /* 2/pi */
static double M_2_SQRTPIValue = 1.12837916709551257390; /* 2/sqrt(pi) */
static double M_SQRT2Value = 1.41421356237309504880; /* sqrt(2) */
static double M_SQRT1_2Value = 0.70710678118654752440; /* 1/sqrt(2) */
void MathSin(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = sin(Param[0]->Val->FP);
}
void MathCos(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = cos(Param[0]->Val->FP);
}
void MathTan(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = tan(Param[0]->Val->FP);
}
void MathAsin(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = asin(Param[0]->Val->FP);
}
void MathAcos(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = acos(Param[0]->Val->FP);
}
void MathAtan(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = atan(Param[0]->Val->FP);
}
void MathAtan2(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = atan2(Param[0]->Val->FP, Param[1]->Val->FP);
}
void MathSinh(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = sinh(Param[0]->Val->FP);
}
void MathCosh(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = cosh(Param[0]->Val->FP);
}
void MathTanh(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = tanh(Param[0]->Val->FP);
}
void MathExp(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = exp(Param[0]->Val->FP);
}
void MathFabs(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = fabs(Param[0]->Val->FP);
}
void MathFmod(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = fmod(Param[0]->Val->FP, Param[1]->Val->FP);
}
void MathFrexp(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = frexp(Param[0]->Val->FP, Param[1]->Val->Pointer);
}
void MathLdexp(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = ldexp(Param[0]->Val->FP, Param[1]->Val->Integer);
}
void MathLog(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = log(Param[0]->Val->FP);
}
void MathLog10(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = log10(Param[0]->Val->FP);
}
void MathModf(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = modf(Param[0]->Val->FP, Param[0]->Val->Pointer);
}
void MathPow(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = pow(Param[0]->Val->FP, Param[1]->Val->FP);
}
void MathSqrt(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = sqrt(Param[0]->Val->FP);
}
void MathRound(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
/* this awkward definition of "round()" due to it being inconsistently
* declared in math.h */
ReturnValue->Val->FP = ceil(Param[0]->Val->FP - 0.5);
}
void MathCeil(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = ceil(Param[0]->Val->FP);
}
void MathFloor(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
ReturnValue->Val->FP = floor(Param[0]->Val->FP);
}
/* all math.h functions */
struct LibraryFunction MathFunctions[] =
{
{MathAcos, "float acos(float);"},
{MathAsin, "float asin(float);"},
{MathAtan, "float atan(float);"},
{MathAtan2, "float atan2(float, float);"},
{MathCeil, "float ceil(float);"},
{MathCos, "float cos(float);"},
{MathCosh, "float cosh(float);"},
{MathExp, "float exp(float);"},
{MathFabs, "float fabs(float);"},
{MathFloor, "float floor(float);"},
{MathFmod, "float fmod(float, float);"},
{MathFrexp, "float frexp(float, int *);"},
{MathLdexp, "float ldexp(float, int);"},
{MathLog, "float log(float);"},
{MathLog10, "float log10(float);"},
{MathModf, "float modf(float, float *);"},
{MathPow, "float pow(float,float);"},
{MathRound, "float round(float);"},
{MathSin, "float sin(float);"},
{MathSinh, "float sinh(float);"},
{MathSqrt, "float sqrt(float);"},
{MathTan, "float tan(float);"},
{MathTanh, "float tanh(float);"},
{NULL, NULL }
};
/* creates various system-dependent definitions */
void MathSetupFunc(Picoc *pc)
{
VariableDefinePlatformVar(pc, NULL, "M_E", &pc->FPType, (union AnyValue *)&M_EValue, false);
VariableDefinePlatformVar(pc, NULL, "M_LOG2E", &pc->FPType, (union AnyValue *)&M_LOG2EValue, false);
VariableDefinePlatformVar(pc, NULL, "M_LOG10E", &pc->FPType, (union AnyValue *)&M_LOG10EValue, false);
VariableDefinePlatformVar(pc, NULL, "M_LN2", &pc->FPType, (union AnyValue *)&M_LN2Value, false);
VariableDefinePlatformVar(pc, NULL, "M_LN10", &pc->FPType, (union AnyValue *)&M_LN10Value, false);
VariableDefinePlatformVar(pc, NULL, "M_PI", &pc->FPType, (union AnyValue *)&M_PIValue, false);
VariableDefinePlatformVar(pc, NULL, "M_PI_2", &pc->FPType, (union AnyValue *)&M_PI_2Value, false);
VariableDefinePlatformVar(pc, NULL, "M_PI_4", &pc->FPType, (union AnyValue *)&M_PI_4Value, false);
VariableDefinePlatformVar(pc, NULL, "M_1_PI", &pc->FPType, (union AnyValue *)&M_1_PIValue, false);
VariableDefinePlatformVar(pc, NULL, "M_2_PI", &pc->FPType, (union AnyValue *)&M_2_PIValue, false);
VariableDefinePlatformVar(pc, NULL, "M_2_SQRTPI", &pc->FPType, (union AnyValue *)&M_2_SQRTPIValue, false);
VariableDefinePlatformVar(pc, NULL, "M_SQRT2", &pc->FPType, (union AnyValue *)&M_SQRT2Value, false);
VariableDefinePlatformVar(pc, NULL, "M_SQRT1_2", &pc->FPType, (union AnyValue *)&M_SQRT1_2Value, false);
}