blob: 5bf16b034d6f49f67c01f61face5dd125288550f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
// { dg-do compile }
class FloatPoint;
class Path {
public:
~Path();
void moveTo(const FloatPoint&);
static void createEllipse(const FloatPoint& center, float rx, float ry);
};
extern "C" {
extern float cosf (float);
extern float sinf (float);
}
const float piFloat = static_cast<float>(3.14159265358979323846);
class FloatPoint {
public:
FloatPoint(float x, float y) : m_x(x), m_y(y) { }
float x() const;
float y() const;
float m_x, m_y;
};
void Path::createEllipse(const FloatPoint& center, float rx, float ry)
{
float cx = center.x();
float cy = center.y();
Path path;
float x = cx;
float y = cy;
unsigned step = 0, num = 100;
while (1) {
float angle = static_cast<float>(step) / num * 2.0f * piFloat;
x = cx + cosf(angle) * rx;
y = cy + sinf(angle) * ry;
step++;
if (step == 1)
path.moveTo(FloatPoint(x, y));
}
}
|