Function DoCast

source/common/scripting/vm/vmexec.h:2055–2163

}

static void DoCast(const VMRegisters &reg, const VMFrame *f, int a, int b, int cast)
{
	switch (cast)
	{
	case CAST_I2F:
		ASSERTF(a); ASSERTD(b);
		reg.f[a] = reg.d[b];
		break;
	case CAST_U2F:
		ASSERTF(a); ASSERTD(b);
		reg.f[a] = unsigned(reg.d[b]);
		break;
	case CAST_I2S:
		ASSERTS(a); ASSERTD(b);
		reg.s[a].Format("%d", reg.d[b]);
		break;
	case CAST_U2S:
		ASSERTS(a); ASSERTD(b);
		reg.s[a].Format("%u", reg.d[b]);
		break;

	case CAST_F2I:
		ASSERTD(a); ASSERTF(b);
		reg.d[a] = (int)reg.f[b];
		break;
	case CAST_F2U:
		ASSERTD(a); ASSERTF(b);
		reg.d[a] = (int)(unsigned)reg.f[b];
		break;
	case CAST_F2S:
		ASSERTS(a); ASSERTF(b);
		reg.s[a].Format("%.5f", reg.f[b]);	// keep this small. For more precise conversion there should be a conversion function.
		break;
	case CAST_V22S:
		ASSERTS(a); ASSERTF(b+1);
		reg.s[a].Format("(%.5f, %.5f)", reg.f[b], reg.f[b + 1]);
		break;
	case CAST_V32S:
		ASSERTS(a); ASSERTF(b + 2);
		reg.s[a].Format("(%.5f, %.5f, %.5f)", reg.f[b], reg.f[b + 1], reg.f[b + 2]);
		break;

	case CAST_P2S:
	{
		ASSERTS(a); ASSERTA(b);
		if (reg.a[b] == nullptr) reg.s[a] = "null";
		else reg.s[a].Format("%p", reg.a[b]);
		break; 
	}

	case CAST_S2I:
		ASSERTD(a); ASSERTS(b);
		reg.d[a] = (VM_SWORD)reg.s[b].ToLong();
		break;
	case CAST_S2F:
		ASSERTF(a); ASSERTS(b);
		reg.f[a] = reg.s[b].ToDouble();
		break;