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C++ NUM2DBL函数代码示例

本文整理汇总了C++中NUM2DBL函数的典型用法代码示例。如果您正苦于以下问题：C++ NUM2DBL函数的具体用法？C++ NUM2DBL怎么用？C++ NUM2DBL使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了NUM2DBL函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: rb_gsl_pow_int

static VALUE rb_gsl_pow_int(VALUE obj, VALUE xx, VALUE nn)
{
  VALUE x, ary, argv[2];
  size_t i, j, size;
  int n;
  gsl_vector *v = NULL, *vnew = NULL;
  gsl_matrix *m = NULL, *mnew = NULL;

  if (CLASS_OF(xx) == rb_cRange) xx = rb_gsl_range2ary(xx);
  switch (TYPE(xx)) {
  case T_FIXNUM:
  case T_BIGNUM:
  case T_FLOAT:
    return rb_float_new(gsl_pow_int(NUM2DBL(xx), FIX2INT(nn)));
    break;
  case T_ARRAY:
    CHECK_FIXNUM(nn);
    n = FIX2INT(nn);
    size = RARRAY_LEN(xx);
    ary = rb_ary_new2(size);
    for (i = 0; i < size; i++) {
      x = rb_ary_entry(xx, i);
      Need_Float(x);
      //      rb_ary_store(ary, i, rb_float_new(gsl_pow_int(RFLOAT(x)->value, n)));
      rb_ary_store(ary, i, rb_float_new(gsl_pow_int(NUM2DBL(x), n)));
    }
    return ary;
    break;
  default:
#ifdef HAVE_NARRAY_H
    if (NA_IsNArray(xx)) {
      struct NARRAY *na;
      double *ptr1, *ptr2;
      CHECK_FIXNUM(nn);
      n = FIX2INT(nn);
      GetNArray(xx, na);
      ptr1 = (double*) na->ptr;
      size = na->total;
      ary = na_make_object(NA_DFLOAT, na->rank, na->shape, CLASS_OF(xx));
      ptr2 = NA_PTR_TYPE(ary, double*);
      for (i = 0; i < size; i++) ptr2[i] = gsl_pow_int(ptr1[i], n);
      return ary;
    }
#endif
    if (VECTOR_P(xx)) {
      CHECK_FIXNUM(nn);
      n = FIX2INT(nn);
      Data_Get_Struct(xx, gsl_vector, v);
      vnew = gsl_vector_alloc(v->size);
      for (i = 0; i < v->size; i++) {
        gsl_vector_set(vnew, i, gsl_pow_int(gsl_vector_get(v, i), n));
      }
      return Data_Wrap_Struct(cgsl_vector, 0, gsl_vector_free, vnew);
    } else if (MATRIX_P(xx)) {
      CHECK_FIXNUM(nn);
      n = FIX2INT(nn);
      Data_Get_Struct(xx, gsl_matrix, m);
      mnew = gsl_matrix_alloc(m->size1, m->size2);
      for (i = 0; i < m->size1; i++) {
        for (j = 0; j < m->size2; j++) {
          gsl_matrix_set(mnew, i, j, gsl_pow_int(gsl_matrix_get(m, i, j), n));
        }
      }
      return Data_Wrap_Struct(cgsl_matrix, 0, gsl_matrix_free, mnew);
    } else if (COMPLEX_P(xx) || VECTOR_COMPLEX_P(xx) || MATRIX_COMPLEX_P(xx)) {
      argv[0] = xx;
      argv[1] = nn;
      return rb_gsl_complex_pow_real(2, argv, obj);
    } else {
      rb_raise(rb_eTypeError, "wrong argument type %s (Array or Vector or Matrix expected)", rb_class2name(CLASS_OF(xx)));
    }
    break;
  }
  /* never reach here */
  return Qnil;
}
开发者ID:blackwinter，项目名称:rb-gsl，代码行数:76，代码来源:math.c

示例2: rb_array_set_right

/**
@section Instance methods
@method left
@method left=( left )
@method right
@method right=( right )
@method top
@method top=( top )
@method bottom
@method bottom=( bottom )
These can be set and read at will.
Differences with x, y, w and h are:
* @right and @bottom are screen coordinates.
	@right is @x + @w and @bottom is @y + @h .
*/
static VALUE rb_array_set_right(VALUE self, VALUE new_right)
{
	SET_X(NUM2DBL(new_right)-array_get_w(self));
	return self;
}
开发者ID:matozoid，项目名称:rudl，代码行数:20，代码来源:rudl_video_rect.c

示例3: array_get_h

__inline__ static double array_get_h(VALUE array)	{return NUM2DBL(rb_ary_entry(array, 3));}
开发者ID:matozoid，项目名称:rudl，代码行数:1，代码来源:rudl_video_rect.c

示例4: get_parameter

static void* get_parameter(const ool_conmin_minimizer_type *T, ool_conmin_pgrad_parameters *Pp,
	ool_conmin_spg_parameters *Ps, ool_conmin_gencan_parameters *Pg, VALUE ary)
{
	if (T == ool_conmin_minimizer_pgrad) {
		if (ary == Qnil) {
			ool_conmin_parameters_default(T, (void*) Pp);
		} else {
			Pp->fmin = NUM2DBL(rb_ary_entry(ary, 0));
			Pp->tol = NUM2DBL(rb_ary_entry(ary, 1));		
			Pp->alpha = NUM2DBL(rb_ary_entry(ary, 2));
			Pp->sigma1 = NUM2DBL(rb_ary_entry(ary, 3));
			Pp->sigma2 = NUM2DBL(rb_ary_entry(ary, 4));						
		}
		return (void*) Pp;
	} else if (T == ool_conmin_minimizer_spg) {
		if (ary == Qnil) {
			ool_conmin_parameters_default(T, (void*) Ps);
		} else {
			Ps->fmin = NUM2DBL(rb_ary_entry(ary, 0));
			Ps->tol = NUM2DBL(rb_ary_entry(ary, 1));		
			Ps->M = NUM2DBL(rb_ary_entry(ary, 2));
			Ps->alphamin = NUM2DBL(rb_ary_entry(ary, 3));
			Ps->alphamax = NUM2DBL(rb_ary_entry(ary, 4));								
			Ps->gamma = NUM2DBL(rb_ary_entry(ary, 5));								
			Ps->sigma2 = NUM2DBL(rb_ary_entry(ary, 6));										
			Ps->sigma2 = NUM2DBL(rb_ary_entry(ary, 7));												
		}
		return (void*) Ps;
	} else {
		if (ary == Qnil) {
			ool_conmin_parameters_default(T, (void*) Pg);
		} else {
			Pg->epsgpen = NUM2DBL(rb_ary_entry(ary, 0));
			Pg->epsgpsn = NUM2DBL(rb_ary_entry(ary, 1));		
			Pg->fmin = NUM2DBL(rb_ary_entry(ary, 2));
			Pg->udelta0 = NUM2DBL(rb_ary_entry(ary, 3));
			Pg->ucgmia = NUM2DBL(rb_ary_entry(ary, 4));								
			Pg->ucgmib = NUM2DBL(rb_ary_entry(ary, 5));								
			Pg->cg_scre = FIX2INT(rb_ary_entry(ary, 6));										
			Pg->cg_gpnf = NUM2DBL(rb_ary_entry(ary, 7));				
			Pg->cg_epsi = NUM2DBL(rb_ary_entry(ary, 8));				
			Pg->cg_epsf = NUM2DBL(rb_ary_entry(ary, 9));													
			Pg->cg_epsnqmp = NUM2DBL(rb_ary_entry(ary, 10));
			Pg->cg_maxitnqmp = (size_t) FIX2INT(rb_ary_entry(ary, 11));
			Pg->nearlyq = FIX2INT(rb_ary_entry(ary, 12));			
			Pg->nint = NUM2DBL(rb_ary_entry(ary, 13));						
			Pg->next = NUM2DBL(rb_ary_entry(ary, 14));						
			Pg->mininterp = (size_t) FIX2INT(rb_ary_entry(ary, 15));
			Pg->maxextrap = (size_t) FIX2INT(rb_ary_entry(ary, 16));						
			Pg->trtype = FIX2INT(rb_ary_entry(ary, 17));						
			Pg->eta = NUM2DBL(rb_ary_entry(ary, 18));																
			Pg->delmin = NUM2DBL(rb_ary_entry(ary, 19));			
			Pg->lspgmi = NUM2DBL(rb_ary_entry(ary, 20));			
			Pg->lspgma = NUM2DBL(rb_ary_entry(ary, 21));			
			Pg->theta = NUM2DBL(rb_ary_entry(ary, 22));			
			Pg->gamma = NUM2DBL(rb_ary_entry(ary, 23));
			Pg->beta = NUM2DBL(rb_ary_entry(ary, 24));			
			Pg->sigma1 = NUM2DBL(rb_ary_entry(ary, 25));			
			Pg->sigma2 = NUM2DBL(rb_ary_entry(ary, 26));			
			Pg->epsrel = NUM2DBL(rb_ary_entry(ary, 27));			
			Pg->epsabs = NUM2DBL(rb_ary_entry(ary, 28));			
			Pg->infrel = NUM2DBL(rb_ary_entry(ary, 29));			
			Pg->infabs = NUM2DBL(rb_ary_entry(ary, 30));															
		}		
		return (void*) Pg;		
	}
}
开发者ID:vesselinv，项目名称:rb-gsl，代码行数:67，代码来源:ool.c

示例5: rg_set_increments

static VALUE
rg_set_increments(VALUE self, VALUE step, VALUE page)
{
    gtk_spin_button_set_increments(_SELF(self), NUM2DBL(step), NUM2DBL(page));
    return self;
}
开发者ID:msakai，项目名称:ruby-gnome2，代码行数:6，代码来源:rbgtkspinbutton.c

示例6: Draw_composite

/*
    Method:     Draw#composite(x,y,width,height,img,operator=OverCompositeOp)
    Purpose:    Implement the "image" drawing primitive
    Notes:      The "img" argument can be either an ImageList object
                or an Image argument.
*/
VALUE
Draw_composite(int argc, VALUE *argv, VALUE self)
{
    Draw *draw;
    const char *op = "Over";
    double x, y, width, height;
    CompositeOperator cop = OverCompositeOp;
    volatile VALUE image;
    Image *comp_img;
    struct TmpFile_Name *tmpfile_name;
    char name[MaxTextExtent];
    // Buffer for "image" primitive
    char primitive[MaxTextExtent];

    if (argc < 5 || argc > 6)
    {
        rb_raise(rb_eArgError, "wrong number of arguments (%d for 5 or 6)", argc);
    }

    // Retrieve the image to composite
    image = rm_cur_image(argv[4]);
    (void) rm_check_destroyed(image);

    x = NUM2DBL(argv[0]);
    y = NUM2DBL(argv[1]);
    width  = NUM2DBL(argv[2]);
    height = NUM2DBL(argv[3]);

    // The default composition operator is "Over".
    if (argc == 6)
    {
        VALUE_TO_ENUM(argv[5], cop, CompositeOperator);

        switch (cop)
        {
            case AddCompositeOp:
                op = "Add";
                break;
            case AtopCompositeOp:
                op = "Atop";
                break;
            case BumpmapCompositeOp:
                op = "Bumpmap";
                break;
            case ClearCompositeOp:
                op = "Clear";
                break;
            case CopyBlueCompositeOp:
                op = "CopyBlue";
                break;
            case CopyGreenCompositeOp:
                op = "CopyGreen";
                break;
            case CopyOpacityCompositeOp:
                op = "CopyOpacity";
                break;
            case CopyRedCompositeOp:
                op = "CopyRed";
                break;
            case CopyCompositeOp:
                op = "Copy";
                break;
            case DifferenceCompositeOp:
                op = "Difference";
                break;
            case InCompositeOp:
                op = "In";
                break;
            case MinusCompositeOp:
                op = "Minus";
                break;
            case MultiplyCompositeOp:
                op = "Multiply";
                break;
            case OutCompositeOp:
                op = "Out";
                break;
            case OverCompositeOp:
                op = "Over";
                break;
            case PlusCompositeOp:
                op = "Plus";
                break;
            case SubtractCompositeOp:
                op = "Subtract";
                break;
            case XorCompositeOp:
                op = "Xor";
                break;
            default:
                rb_raise(rb_eArgError, "unknown composite operator (%d)", cop);
                break;
        }
    }
//.........这里部分代码省略.........
开发者ID:akankshita，项目名称:HealtyPrice，代码行数:101，代码来源:rmdraw.c

示例7: rb_gsl_finite2

static VALUE rb_gsl_finite2(VALUE obj, VALUE x)
{
  Need_Float(x);
  if (gsl_finite(NUM2DBL(x))) return Qtrue;
  else return Qfalse;
}
开发者ID:blackwinter，项目名称:rb-gsl，代码行数:6，代码来源:math.c

示例8: method_caller

static void method_caller(xmlXPathParserContextPtr ctxt, int nargs)
{
    const xmlChar * function;
    const xmlChar * functionURI;
    size_t i, count;

    xsltTransformContextPtr transform;
    xmlXPathObjectPtr xpath;
    VALUE obj;
    VALUE *args;
    VALUE result;

    transform = xsltXPathGetTransformContext(ctxt);

    function = ctxt->context->function;
    functionURI = ctxt->context->functionURI;
    obj = (VALUE)xsltGetExtData(transform, functionURI);

    count = (size_t)ctxt->valueNr;
    args = calloc(count, sizeof(VALUE *));

    for(i = 0; i < count; i++) {
	VALUE thing;

	xpath = valuePop(ctxt);
	switch(xpath->type) {
	    case XPATH_STRING:
		thing = NOKOGIRI_STR_NEW2(xpath->stringval);
		break;
	    case XPATH_NODESET:
		if(NULL == xpath->nodesetval) {
		    thing = Nokogiri_wrap_xml_node_set(
			    xmlXPathNodeSetCreate(NULL),
			    DOC_RUBY_OBJECT(ctxt->context->doc));
		} else {
		    thing = Nokogiri_wrap_xml_node_set(xpath->nodesetval,
			    DOC_RUBY_OBJECT(ctxt->context->doc));
		}
		break;
	    default:
		rb_raise(rb_eRuntimeError, "do not handle type: %d", xpath->type);
	}
	args[i] = thing;
	xmlFree(xpath);
    }
    result = rb_funcall3(obj, rb_intern((const char *)function), (int)count, args);
    free(args);
    switch(TYPE(result)) {
	case T_FLOAT:
	case T_BIGNUM:
	case T_FIXNUM:
	    xmlXPathReturnNumber(ctxt, NUM2DBL(result));
	    break;
	case T_STRING:
	    xmlXPathReturnString(
		    ctxt,
		    xmlStrdup((xmlChar *)StringValuePtr(result))
		    );
	    break;
	case T_TRUE:
	    xmlXPathReturnTrue(ctxt);
	    break;
	case T_FALSE:
	    xmlXPathReturnFalse(ctxt);
	    break;
	case T_NIL:
	    break;
	default:
	    rb_raise(rb_eRuntimeError, "Invalid return type");
    }
}
开发者ID:127lh，项目名称:metasploit-framework，代码行数:71，代码来源:xslt_stylesheet.c

示例9: rb_gsl_isinf2

static VALUE rb_gsl_isinf2(VALUE obj, VALUE x)
{
  //  Need_Float(x);
  if (gsl_isinf(NUM2DBL(x))) return Qtrue;
  else return Qfalse;
}
开发者ID:blackwinter，项目名称:rb-gsl，代码行数:6，代码来源:math.c

示例10: rb_gsl_finite

static VALUE rb_gsl_finite(VALUE obj, VALUE x)
{
  Need_Float(x);
  return INT2FIX(gsl_finite(NUM2DBL(x)));
}
开发者ID:blackwinter，项目名称:rb-gsl，代码行数:5，代码来源:math.c

示例11: rb_gsl_ldexp

static VALUE rb_gsl_ldexp(VALUE obj, VALUE x, VALUE e)
{
  return rb_float_new(gsl_ldexp(NUM2DBL(x), FIX2INT(e)));
}
开发者ID:blackwinter，项目名称:rb-gsl，代码行数:4，代码来源:math.c

示例12: rb_GSL_MIN_DBL

static VALUE rb_GSL_MIN_DBL(VALUE obj, VALUE aa, VALUE bb)
{
  Need_Float(aa); Need_Float(bb);
  return rb_float_new(GSL_MAX_DBL(NUM2DBL(aa), NUM2DBL(bb)));
}
开发者ID:blackwinter，项目名称:rb-gsl，代码行数:5，代码来源:math.c

示例13: rb_GSL_SIGN

static VALUE rb_GSL_SIGN(VALUE obj, VALUE x)
{
  return INT2FIX(GSL_SIGN(NUM2DBL(x)));
}
开发者ID:blackwinter，项目名称:rb-gsl，代码行数:4，代码来源:math.c

示例14: adj_clamp_page

static VALUE
adj_clamp_page(VALUE self, VALUE lower, VALUE upper)
{
    gtk_adjustment_clamp_page(_SELF(self), NUM2DBL(lower), NUM2DBL(upper));
    return self;
}
开发者ID:geoffyoungs，项目名称:ruby-gnome2，代码行数:6，代码来源:rbgtkadjustment.c

示例15: rb_gsl_interp_evaluate

static VALUE rb_gsl_interp_evaluate(VALUE obj, VALUE xxa, VALUE yya, VALUE xx,
				    double (*eval)(const gsl_interp *, const double [], 
						   const double [], double, 
						   gsl_interp_accel *))
{
  rb_gsl_interp *rgi = NULL;
  double *ptrx = NULL, *ptry = NULL;
  gsl_vector *v = NULL, *vnew = NULL;
  gsl_matrix *m = NULL, *mnew = NULL;
  VALUE ary, x;
  double val;
  size_t n, i, j, size, stridex, stridey;
#ifdef HAVE_NARRAY_H
  struct NARRAY *na = NULL;
  double *ptrz = NULL, *ptr = NULL;
#endif
  Data_Get_Struct(obj, rb_gsl_interp, rgi);
  ptrx = get_vector_ptr(xxa, &stridex, &size);
  if (size != rgi->p->size ){
    rb_raise(rb_eTypeError, "size mismatch (xa:%d != %d)",  (int) size, (int) rgi->p->size);
  }
  ptry = get_vector_ptr(yya, &stridey, &size);
  if (size != rgi->p->size ){
    rb_raise(rb_eTypeError, "size mismatch (ya:%d != %d)", (int) size, (int) rgi->p->size);
  }
  if (CLASS_OF(xx) == rb_cRange) xx = rb_gsl_range2ary(xx);
  switch (TYPE(xx)) {
  case T_FIXNUM:  case T_BIGNUM:  case T_FLOAT:
    Need_Float(xx);
    return rb_float_new((*eval)(rgi->p, ptrx, ptry, NUM2DBL(xx), rgi->a));
    break;
  case T_ARRAY:
    n = RARRAY(xx)->len;
    ary = rb_ary_new2(n);
    for (i = 0; i < n; i++) {
      x = rb_ary_entry(xx, i);
      Need_Float(x);
      val = (*eval)(rgi->p, ptrx, ptry, NUM2DBL(x), rgi->a);
      rb_ary_store(ary, i, rb_float_new(val));
    }
    return ary;
    break;
  default:
#ifdef HAVE_NARRAY_H
    if (NA_IsNArray(xx)) {
      GetNArray(xx, na);
      ptrz = (double*) na->ptr;
      ary = na_make_object(NA_DFLOAT, na->rank, na->shape, CLASS_OF(xx));
      ptr = NA_PTR_TYPE(ary, double*);
      for (i = 0; i < na->total; i++)
	ptr[i] = (*eval)(rgi->p, ptrx, ptry, ptrz[i], rgi->a);
      return ary;
    }
#endif
    if (VECTOR_P(xx)) {
      Data_Get_Struct(xx, gsl_vector, v);
      vnew = gsl_vector_alloc(v->size);
      for (i = 0; i < v->size; i++) {
	val = (*eval)(rgi->p, ptrx, ptry, gsl_vector_get(v, i), rgi->a);
	gsl_vector_set(vnew, i, val);
      }
      return Data_Wrap_Struct(cgsl_vector, 0, gsl_vector_free, vnew);
    } else if (MATRIX_P(xx)) {
      Data_Get_Struct(xx, gsl_matrix, m);
      mnew = gsl_matrix_alloc(m->size1, m->size2);
      for (i = 0; i < m->size1; i++) {
	for (j = 0; j < m->size2; j++) {
	  val = (*eval)(rgi->p, ptrx, ptry, gsl_matrix_get(m, i, j), rgi->a);
	  gsl_matrix_set(mnew, i, j, val);
	}
      }
      return Data_Wrap_Struct(cgsl_matrix, 0, gsl_matrix_free, mnew);
    } else {
      rb_raise(rb_eTypeError, "wrong argument type %s", rb_class2name(CLASS_OF(xx)));
    }
    break;
  }

  /* never reach here */
  return Qnil;
}
开发者ID:davidrichards，项目名称:rb-gsl，代码行数:81，代码来源:interp.c


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