我正在尝试将开源C项目转换为Delphi(柏林10.1) . 它使用一些指针,我找不到将它们转换为Delphi指针的方法 . 如何将这段代码从C翻译成Delphi?这是代码:
int SolveAll(int DragFunction, double DragCoefficient, double Vi,
double SightHeight,
double ShootingAngle, double ZAngle, double WindSpeed, double WindAngle,
double** Solution)
{
double* ptr;
ptr = (double*)malloc(10*__BCOMP_MAXRANGE__*sizeof(double)+2048);
double t=0;
double dt=0.5/Vi;
double v=0;
double vx=0, vx1=0, vy=0, vy1=0;
double dv=0, dvx=0, dvy=0;
double x=0, y=0;
double headwind=HeadWind(WindSpeed, WindAngle);
double crosswind=CrossWind(WindSpeed, WindAngle);
double Gy=GRAVITY*cos(DegtoRad((ShootingAngle + ZAngle)));
double Gx=GRAVITY*sin(DegtoRad((ShootingAngle + ZAngle)));
vx=Vi*cos(DegtoRad(ZAngle));
vy=Vi*sin(DegtoRad(ZAngle));
y=-SightHeight/12;
int n=0;
for (t=0;;t=t+dt){
vx1=vx, vy1=vy;
v=pow(pow(vx,2)+pow(vy,2),0.5);
dt=0.5/v;
dv = retard(DragFunction,DragCoefficient,v+headwind);
dvx = -(vx/v)*dv;
dvy = -(vy/v)*dv;
vx=vx + dt*dvx + dt*Gx;
vy=vy + dt*dvy + dt*Gy;
if (x/3>=n){
ptr[10*n+0]=x/3;
ptr[10*n+1]=y*12;
ptr[10*n+2]=-RadtoMOA(atan(y/x));
ptr[10*n+3]=t+dt;
ptr[10*n+4]=Windage(crosswind,Vi,x,t+dt);
ptr[10*n+5]=RadtoMOA(atan(ptr[10*n+4]));
ptr[10*n+6]=v;
ptr[10*n+7]=vx;
ptr[10*n+8]=vy;
ptr[10*n+9]=0;
n++;
}
// Compute position based on average velocity.
x=x+dt*(vx+vx1)/2;
y=y+dt*(vy+vy1)/2;
if (fabs(vy)>fabs(3*vx)) break;
if (n>=__BCOMP_MAXRANGE__+1) break;
}
ptr[10*__BCOMP_MAXRANGE__+1]=(double)n;
*Solution = ptr;
return n;
}
2 回答
完整代码添加后编辑: