/*
* call-seq:
* onum * other -> number
*
* Returns the product of <i>onum</i> and <i>other</i>.
*/
static VALUE onum_mul(VALUE lhs, VALUE rhs)
{
OCIError *errhp = oci8_errhp;
OCINumber n;
OCINumber r;
switch (rboci8_type(rhs)) {
case T_FIXNUM:
case T_BIGNUM:
if (set_oci_number_from_num(&n, rhs, 0, errhp)) {
chkerr(OCINumberMul(errhp, _NUMBER(lhs), &n, &r));
return oci8_make_ocinumber(&r, errhp);
}
break;
case RBOCI8_T_ORANUMBER:
chkerr(OCINumberMul(errhp, _NUMBER(lhs), _NUMBER(rhs), &r));
return oci8_make_ocinumber(&r, errhp);
case T_FLOAT:
return rb_funcall(onum_to_f(lhs), oci8_id_mul_op, 1, rhs);
case RBOCI8_T_RATIONAL:
return rb_funcall(onum_to_r(lhs), oci8_id_mul_op, 1, rhs);
case RBOCI8_T_BIGDECIMAL:
return rb_funcall(onum_to_d(lhs), oci8_id_mul_op, 1, rhs);
}
return rb_num_coerce_bin(lhs, rhs, oci8_id_mul_op);
}
/*
* call-seq:
* OCI8::Math.atan2(y, x) -> oranumber
*
* Computes the arc tangent given <i>y</i> and <i>x</i>. Returns
* -PI..PI.
*/
static VALUE omath_atan2(VALUE self, VALUE Ycoordinate, VALUE Xcoordinate)
{
OCIError *errhp = oci8_errhp;
OCINumber nY;
OCINumber nX;
OCINumber rv;
boolean is_zero;
sword sign;
set_oci_number_from_num(&nX, Xcoordinate, 1, errhp);
set_oci_number_from_num(&nY, Ycoordinate, 1, errhp);
/* check zero */
chkerr(OCINumberIsZero(errhp, &nX, &is_zero));
if (is_zero) {
chkerr(OCINumberSign(errhp, &nY, &sign));
switch (sign) {
case 0:
return INT2FIX(0); /* atan2(0, 0) => 0 or ERROR? */
case 1:
return oci8_make_ocinumber(&const_PI2, errhp); /* atan2(positive, 0) => PI/2 */
case -1:
return oci8_make_ocinumber(&const_mPI2, errhp); /* atan2(negative, 0) => -PI/2 */
}
}
/* atan2 */
chkerr(OCINumberArcTan2(errhp, &nY, &nX, &rv));
return oci8_make_ocinumber(&rv, errhp);
}
static VALUE onum_coerce(VALUE self, VALUE other)
{
signed long sl;
OCINumber n;
switch(rboci8_type(other)) {
case T_FIXNUM:
sl = NUM2LONG(other);
chkerr(OCINumberFromInt(oci8_errhp, &sl, sizeof(sl), OCI_NUMBER_SIGNED, &n));
return rb_assoc_new(oci8_make_ocinumber(&n, oci8_errhp), self);
case T_BIGNUM:
/* change via string. */
other = rb_big2str(other, 10);
set_oci_number_from_str(&n, other, Qnil, Qnil, oci8_errhp);
return rb_assoc_new(oci8_make_ocinumber(&n, oci8_errhp), self);
case T_FLOAT:
return rb_assoc_new(other, onum_to_f(self));
case RBOCI8_T_RATIONAL:
return rb_assoc_new(other, onum_to_r(self));
case RBOCI8_T_BIGDECIMAL:
return rb_assoc_new(other, onum_to_d(self));
}
rb_raise(rb_eTypeError, "Can't coerce %s to %s",
rb_class2name(CLASS_OF(other)), rb_class2name(cOCINumber));
}
/*
* call-seq:
* onum / integer -> oranumber
* onum / numeric -> numeric
*
* Returns the result of dividing <i>onum</i> by <i>other</i>.
*/
static VALUE onum_div(VALUE lhs, VALUE rhs)
{
OCIError *errhp = oci8_errhp;
OCINumber n;
OCINumber r;
boolean is_zero;
switch (rboci8_type(rhs)) {
case T_FIXNUM:
if (rhs == INT2FIX(0)) {
rb_num_zerodiv();
}
case T_BIGNUM:
if (set_oci_number_from_num(&n, rhs, 0, errhp)) {
chkerr(OCINumberDiv(errhp, _NUMBER(lhs), &n, &r));
return oci8_make_ocinumber(&r, errhp);
}
break;
case RBOCI8_T_ORANUMBER:
chkerr(OCINumberIsZero(errhp, _NUMBER(rhs), &is_zero));
if (is_zero) {
rb_num_zerodiv();
}
chkerr(OCINumberDiv(errhp, _NUMBER(lhs), _NUMBER(rhs), &r));
return oci8_make_ocinumber(&r, errhp);
case T_FLOAT:
return rb_funcall(onum_to_f(lhs), oci8_id_div_op, 1, rhs);
case RBOCI8_T_RATIONAL:
return rb_funcall(onum_to_r(lhs), oci8_id_div_op, 1, rhs);
case RBOCI8_T_BIGDECIMAL:
return rb_funcall(onum_to_d(lhs), oci8_id_div_op, 1, rhs);
}
return rb_num_coerce_bin(lhs, rhs, oci8_id_div_op);
}
/*
* call-seq:
* OCI8::Math.log(numeric) -> oranumber
* OCI8::Math.log(numeric, base_num) -> oranumber
*
* Returns the natural logarithm of <i>numeric</i> for one argument.
* Returns the base <i>base_num</i> logarithm of <i>numeric</i> for two arguments.
*/
static VALUE omath_log(int argc, VALUE *argv, VALUE obj)
{
OCIError *errhp = oci8_errhp;
VALUE num, base;
OCINumber n;
OCINumber b;
OCINumber r;
sword sign;
rb_scan_args(argc, argv, "11", &num, &base);
set_oci_number_from_num(&n, num, 1, errhp);
chkerr(OCINumberSign(errhp, &n, &sign));
if (sign <= 0)
rb_raise(rb_eRangeError, "nonpositive value for log");
if (NIL_P(base)) {
chkerr(OCINumberLn(errhp, &n, &r));
} else {
set_oci_number_from_num(&b, base, 1, errhp);
chkerr(OCINumberSign(errhp, &b, &sign));
if (sign <= 0)
rb_raise(rb_eRangeError, "nonpositive value for the base of log");
chkerr(OCINumberCmp(errhp, &b, &const_p1, &sign));
if (sign == 0)
rb_raise(rb_eRangeError, "base 1 for log");
chkerr(OCINumberLog(errhp, &b, &n, &r));
}
return oci8_make_ocinumber(&r, errhp);
}
/*
* call-seq:
* -onum -> oranumber
*
* Returns a negated <code>OraNumber</code>.
*/
static VALUE onum_neg(VALUE self)
{
OCIError *errhp = oci8_errhp;
OCINumber r;
chkerr(OCINumberNeg(errhp, _NUMBER(self), &r));
return oci8_make_ocinumber(&r, errhp);
}
/*
* call-seq:
* onum.shift(fixnum) -> oranumber
*
* Returns <i>onum</i> * 10**<i>fixnum</i>
* This method is available on Oracle 8.1 client or upper.
*/
static VALUE onum_shift(VALUE self, VALUE exp)
{
OCIError *errhp = oci8_errhp;
OCINumber result;
chkerr(OCINumberShift(errhp, _NUMBER(self), NUM2INT(exp), &result));
return oci8_make_ocinumber(&result, errhp);
}
/*
* call-seq:
* onum.abs -> oranumber
*
* Returns the absolute value of <i>onum</i>.
*
*/
static VALUE onum_abs(VALUE self)
{
OCIError *errhp = oci8_errhp;
OCINumber result;
chkerr(OCINumberAbs(errhp, _NUMBER(self), &result));
return oci8_make_ocinumber(&result, errhp);
}
/*
* call-seq:
* onum.round_prec(digits) -> oranumber
*
* Rounds <i>onum</i> to a specified number of decimal digits.
* This method is available on Oracle 8.1 client or upper.
*
* OraNumber.new(1.234).round_prec(2) #=> 1.2
* OraNumber.new(12.34).round_prec(2) #=> 12
* OraNumber.new(123.4).round_prec(2) #=> 120
*/
static VALUE onum_round_prec(VALUE self, VALUE ndigs)
{
OCIError *errhp = oci8_errhp;
OCINumber r;
chkerr(OCINumberPrec(errhp, _NUMBER(self), NUM2INT(ndigs), &r));
return oci8_make_ocinumber(&r, errhp);
}
/*
* call-seq:
* OCI8::Math.tanh() -> oranumber
*
* Computes the hyperbolic tangent of <i>x</i> (expressed in
* radians).
*/
static VALUE omath_tanh(VALUE obj, VALUE num)
{
OCIError *errhp = oci8_errhp;
OCINumber n;
OCINumber r;
oci_lc(OCINumberHypTan(errhp, TO_OCINUM(&n, num, errhp), &r));
return oci8_make_ocinumber(&r, errhp);
}
/*
* call-seq:
* OCI8::Math.tan(x) -> oranumber
*
* Returns the tangent of <i>x</i> (expressed in radians).
*/
static VALUE omath_tan(VALUE obj, VALUE radian)
{
OCIError *errhp = oci8_errhp;
OCINumber r;
OCINumber rv;
chkerr(OCINumberTan(errhp, TO_OCINUM(&r, radian, errhp), &rv));
return oci8_make_ocinumber(&rv, errhp);
}
/*
* call-seq:
* OCI8::Math.cos(x) -> oranumber
*
* Computes the cosine of <i>x</i> (expressed in radians). Returns
* -1..1.
*/
static VALUE omath_cos(VALUE obj, VALUE radian)
{
OCIError *errhp = oci8_errhp;
OCINumber r;
OCINumber rv;
oci_lc(OCINumberCos(errhp, TO_OCINUM(&r, radian, errhp), &rv));
return oci8_make_ocinumber(&rv, errhp);
}
/*
* call-seq:
* OCI8::Math.exp(x) -> oranumber
*
* Returns e**x.
*/
static VALUE omath_exp(VALUE obj, VALUE num)
{
OCIError *errhp = oci8_errhp;
OCINumber n;
OCINumber r;
chkerr(OCINumberExp(errhp, TO_OCINUM(&n, num, errhp), &r));
return oci8_make_ocinumber(&r, errhp);
}
/*
* call-seq:
* onum.truncate -> integer
* onum.truncate(decplace) -> oranumber
*
* Truncates <i>onum</i> to the <code>Integer</code> when no argument.
* Truncates <i>onum</i> to a specified decimal place <i>decplace</i> when one argument.
*/
static VALUE onum_trunc(int argc, VALUE *argv, VALUE self)
{
OCIError *errhp = oci8_errhp;
VALUE decplace;
OCINumber r;
rb_scan_args(argc, argv, "01", &decplace /* 0 */);
chkerr(OCINumberTrunc(errhp, _NUMBER(self), NIL_P(decplace) ? 0 : NUM2INT(decplace), &r));
return oci8_make_ocinumber(&r, errhp);
}
/*
* call-seq:
* onum.round -> integer
* onum.round(decplace) -> oranumber
*
* Rounds <i>onum</i> to the nearest <code>Integer</code> when no argument.
* Rounds <i>onum</i> to a specified decimal place <i>decplace</i> when one argument.
*
* OraNumber.new(1.234).round(1) #=> 1.2
* OraNumber.new(1.234).round(2) #=> 1.23
* OraNumber.new(1.234).round(3) #=> 1.234
*/
static VALUE onum_round(int argc, VALUE *argv, VALUE self)
{
OCIError *errhp = oci8_errhp;
VALUE decplace;
OCINumber r;
rb_scan_args(argc, argv, "01", &decplace /* 0 */);
chkerr(OCINumberRound(errhp, _NUMBER(self), NIL_P(decplace) ? 0 : NUM2INT(decplace), &r));
if (argc == 0) {
return oci8_make_integer(&r, errhp);
} else {
return oci8_make_ocinumber(&r, errhp);
}
}
/*
* call-seq:
* OCI8::Math.log10(numeric) -> oranumber
*
* Returns the base 10 logarithm of <i>numeric</i>.
*/
static VALUE omath_log10(VALUE obj, VALUE num)
{
OCIError *errhp = oci8_errhp;
OCINumber n;
OCINumber r;
sword sign;
set_oci_number_from_num(&n, num, 1, errhp);
chkerr(OCINumberSign(errhp, &n, &sign));
if (sign <= 0)
rb_raise(rb_eRangeError, "nonpositive value for log10");
chkerr(OCINumberLog(errhp, &const_p10, &n, &r));
return oci8_make_ocinumber(&r, errhp);
}
/*
* call-seq:
* onum ** other -> oranumber
*
* Raises <i>onum</i> the <i>other</i> power.
*/
static VALUE onum_power(VALUE lhs, VALUE rhs)
{
OCIError *errhp = oci8_errhp;
OCINumber n;
OCINumber r;
if (FIXNUM_P(rhs)) {
chkerr(OCINumberIntPower(errhp, _NUMBER(lhs), FIX2INT(rhs), &r));
} else {
/* change to OCINumber */
if (!set_oci_number_from_num(&n, rhs, 0, errhp))
return rb_num_coerce_bin(lhs, rhs, id_power);
chkerr(OCINumberPower(errhp, _NUMBER(lhs), &n, &r));
}
return oci8_make_ocinumber(&r, errhp);
}
/*
* call-seq:
* OraNumber._load(string) -> oranumber
*
* Unmarshal a dumped <code>OraNumber</code> object.
*/
static VALUE
onum_s_load(VALUE klass, VALUE str)
{
unsigned char *c;
size_t size;
OCINumber num;
Check_Type(str, T_STRING);
c = RSTRING_ORATEXT(str);
size = RSTRING_LEN(str);
if (size == 0 || size != c[0] + 1u || size > sizeof(num)) {
rb_raise(rb_eTypeError, "marshaled OCI::Number format differ");
}
memset(&num, 0, sizeof(num));
memcpy(&num, c, size);
return oci8_make_ocinumber(&num, oci8_errhp);
}
/*
* call-seq:
* OCI8::Math.sqrt(numeric) -> oranumber
*
* Returns the non-negative square root of <i>numeric</i>.
*/
static VALUE omath_sqrt(VALUE obj, VALUE num)
{
OCIError *errhp = oci8_errhp;
OCINumber n;
OCINumber r;
sword sign;
set_oci_number_from_num(&n, num, 1, errhp);
/* check whether num is negative */
chkerr(OCINumberSign(errhp, &n, &sign));
if (sign < 0) {
errno = EDOM;
rb_sys_fail("sqrt");
}
chkerr(OCINumberSqrt(errhp, &n, &r));
return oci8_make_ocinumber(&r, errhp);
}
/*
* call-seq:
* onum % other -> oranumber
*
* Returns the modulo after division of <i>onum</i> by <i>other</i>.
*/
static VALUE onum_mod(VALUE lhs, VALUE rhs)
{
OCIError *errhp = oci8_errhp;
OCINumber n;
OCINumber r;
boolean is_zero;
/* change to OCINumber */
if (!set_oci_number_from_num(&n, rhs, 0, errhp))
return rb_num_coerce_bin(lhs, rhs, '%');
/* check whether argument is not zero. */
chkerr(OCINumberIsZero(errhp, &n, &is_zero));
if (is_zero)
rb_num_zerodiv();
/* modulo */
chkerr(OCINumberMod(errhp, _NUMBER(lhs), &n, &r));
return oci8_make_ocinumber(&r, errhp);
}
/*
* call-seq:
* OCI8::Math.asin(x) -> oranumber
*
* Computes the arc sine of <i>x</i>. Returns 0..PI.
*/
static VALUE omath_asin(VALUE obj, VALUE num)
{
OCIError *errhp = oci8_errhp;
OCINumber n;
OCINumber r;
sword sign;
set_oci_number_from_num(&n, num, 1, errhp);
/* check upper bound */
chkerr(OCINumberCmp(errhp, &n, &const_p1, &sign));
if (sign > 0)
rb_raise(rb_eRangeError, "out of range for asin");
/* check lower bound */
chkerr(OCINumberCmp(errhp, &n, &const_m1, &sign));
if (sign < 0)
rb_raise(rb_eRangeError, "out of range for asin");
/* asin */
chkerr(OCINumberArcSin(errhp, &n, &r));
return oci8_make_ocinumber(&r, errhp);
}
/*
* bind_ocinumber
*/
static VALUE bind_ocinumber_get(oci8_bind_t *obind, void *data, void *null_struct)
{
return oci8_make_ocinumber((OCINumber*)data, oci8_errhp);
}
void
Init_oci_number(VALUE cOCI8, OCIError *errhp)
{
VALUE mMath;
OCINumber num1, num2;
VALUE obj_PI;
signed long sl;
id_power = rb_intern("**");
id_cmp = rb_intern("<=>");
id_finite_p = rb_intern("finite?");
id_split = rb_intern("split");
id_numerator = rb_intern("numerator");
id_denominator = rb_intern("denominator");
id_Rational = rb_intern("Rational");
id_BigDecimal = rb_intern("BigDecimal");
cOCINumber = rb_define_class("OraNumber", rb_cNumeric);
mMath = rb_define_module_under(cOCI8, "Math");
/* constants for internal use. */
/* set const_p1 */
sl = 1;
OCINumberFromInt(errhp, &sl, sizeof(sl), OCI_NUMBER_SIGNED, &const_p1);
/* set const_p10 */
sl = 10;
OCINumberFromInt(errhp, &sl, sizeof(sl), OCI_NUMBER_SIGNED, &const_p10);
/* set const_m1 */
sl = -1;
OCINumberFromInt(errhp, &sl, sizeof(sl), OCI_NUMBER_SIGNED, &const_m1);
/* set const_PI2 */
sl = 2;
OCINumberSetPi(errhp, &num1);
OCINumberFromInt(errhp, &sl, sizeof(sl), OCI_NUMBER_SIGNED, &num2);
OCINumberDiv(errhp, &num1 /* PI */, &num2 /* 2 */, &const_PI2);
/* set const_mPI2 */
OCINumberNeg(errhp, &const_PI2 /* PI/2 */, &const_mPI2);
/* PI */
OCINumberSetPi(errhp, &num1);
obj_PI = oci8_make_ocinumber(&num1, errhp);
/* The ratio of the circumference of a circle to its diameter. */
rb_define_const(mMath, "PI", obj_PI);
/*
* module functions of OCI::Math.
*/
rb_define_module_function(mMath, "atan2", omath_atan2, 2);
rb_define_module_function(mMath, "cos", omath_cos, 1);
rb_define_module_function(mMath, "sin", omath_sin, 1);
rb_define_module_function(mMath, "tan", omath_tan, 1);
rb_define_module_function(mMath, "acos", omath_acos, 1);
rb_define_module_function(mMath, "asin", omath_asin, 1);
rb_define_module_function(mMath, "atan", omath_atan, 1);
rb_define_module_function(mMath, "cosh", omath_cosh, 1);
rb_define_module_function(mMath, "sinh", omath_sinh, 1);
rb_define_module_function(mMath, "tanh", omath_tanh, 1);
rb_define_module_function(mMath, "exp", omath_exp, 1);
rb_define_module_function(mMath, "log", omath_log, -1);
rb_define_module_function(mMath, "log10", omath_log10, 1);
rb_define_module_function(mMath, "sqrt", omath_sqrt, 1);
rb_define_alloc_func(cOCINumber, onum_s_alloc);
/* methods of OCI::Number */
rb_define_method(rb_cObject, "OraNumber", onum_f_new, -1);
rb_define_method_nodoc(cOCINumber, "initialize", onum_initialize, -1);
rb_define_method_nodoc(cOCINumber, "initialize_copy", onum_initialize_copy, 1);
rb_define_method_nodoc(cOCINumber, "coerce", onum_coerce, 1);
rb_include_module(cOCINumber, rb_mComparable);
rb_define_method(cOCINumber, "-@", onum_neg, 0);
rb_define_method(cOCINumber, "+", onum_add, 1);
rb_define_method(cOCINumber, "-", onum_sub, 1);
rb_define_method(cOCINumber, "*", onum_mul, 1);
rb_define_method(cOCINumber, "/", onum_div, 1);
rb_define_method(cOCINumber, "%", onum_mod, 1);
rb_define_method(cOCINumber, "**", onum_power, 1);
rb_define_method(cOCINumber, "<=>", onum_cmp, 1);
rb_define_method(cOCINumber, "floor", onum_floor, 0);
rb_define_method(cOCINumber, "ceil", onum_ceil, 0);
rb_define_method(cOCINumber, "round", onum_round, -1);
rb_define_method(cOCINumber, "truncate", onum_trunc, -1);
rb_define_method(cOCINumber, "round_prec", onum_round_prec, 1);
rb_define_method(cOCINumber, "to_s", onum_to_s, 0);
rb_define_method(cOCINumber, "to_char", onum_to_char, -1);
rb_define_method(cOCINumber, "to_i", onum_to_i, 0);
rb_define_method(cOCINumber, "to_f", onum_to_f, 0);
rb_define_method(cOCINumber, "to_r", onum_to_r, 0);
rb_define_method(cOCINumber, "to_d", onum_to_d, 0);
rb_define_method(cOCINumber, "has_decimal_part?", onum_has_decimal_part_p, 0);
rb_define_method_nodoc(cOCINumber, "to_onum", onum_to_onum, 0);
rb_define_method(cOCINumber, "zero?", onum_zero_p, 0);
rb_define_method(cOCINumber, "abs", onum_abs, 0);
rb_define_method(cOCINumber, "shift", onum_shift, 1);
rb_define_method(cOCINumber, "dump", onum_dump, 0);
rb_define_method_nodoc(cOCINumber, "hash", onum_hash, 0);
rb_define_method_nodoc(cOCINumber, "inspect", onum_inspect, 0);
/* methods for marshaling */
rb_define_method(cOCINumber, "_dump", onum__dump, -1);
rb_define_singleton_method(cOCINumber, "_load", onum_s_load, 1);
oci8_define_bind_class("OraNumber", &bind_ocinumber_vtable);
oci8_define_bind_class("Integer", &bind_integer_vtable);
oci8_define_bind_class("Float", &bind_float_vtable);
}