A few more operators. Committing in case unc0rr wants to fiddle.
--- a/hedgewars/uFloat.pas Wed Aug 29 09:58:23 2012 -0400
+++ b/hedgewars/uFloat.pas Wed Aug 29 10:56:32 2012 -0400
@@ -203,14 +203,14 @@
{$IFDEF FPC}
-function int2hwFloat (const i: LongInt) : hwFloat;
+function int2hwFloat (const i: LongInt) : hwFloat; inline;
begin
int2hwFloat.isNegative:= i < 0;
int2hwFloat.Round:= abs(i);
int2hwFloat.Frac:= 0
end;
-function hwFloat2Float (const i: hwFloat) : extended;
+function hwFloat2Float (const i: hwFloat) : extended; inline;
begin
hwFloat2Float:= i.Frac / $100000000 + i.Round;
if i.isNegative then
@@ -230,7 +230,7 @@
end;
{$ENDIF}
-operator + (const z1, z2: hwFloat) z : hwFloat;
+operator + (const z1, z2: hwFloat) z : hwFloat; inline;
begin
if z1.isNegative = z2.isNegative then
begin
@@ -250,7 +250,7 @@
end
end;
-operator - (const z1, z2: hwFloat) z : hwFloat;
+operator - (const z1, z2: hwFloat) z : hwFloat; inline;
begin
if z1.isNegative = z2.isNegative then
if z1.QWordValue > z2.QWordValue then
@@ -274,6 +274,28 @@
begin
isZero := z.QWordValue = 0;
end;
+
+operator < (const z1, z2: hwFloat) b : boolean; inline;
+begin
+if z1.isNegative xor z2.isNegative then
+ b:= z1.isNegative
+else
+ if z1.QWordValue = z2.QWordValue then
+ b:= false
+ else
+ b:= not((z1.QWordValue = z2.QWordValue) or ((z2.QWordValue < z1.QWordValue) <> z1.isNegative))
+end;
+
+operator > (const z1, z2: hwFloat) b : boolean; inline;
+begin
+if z1.isNegative xor z2.isNegative then
+ b:= z2.isNegative
+else
+ if z1.QWordValue = z2.QWordValue then
+ b:= false
+ else
+ b:= (z1.QWordValue > z2.QWordValue) <> z2.isNegative
+end;
{$ENDIF}
{$IFDEF WEB}
(*
@@ -289,22 +311,19 @@
z:= (z1.isNegative <> z2.isNegative) or (z1.Frac <> z2.Frac) or (z1.Round <> z2.Round);
end;
-operator + (const z1, z2: hwFloat) z : hwFloat;
+operator + (const z1, z2: hwFloat) z : hwFloat; inline;
begin
if z1.isNegative = z2.isNegative then
begin
-// z.QWordValue:= z1.QWordValue + z2.QWordValue
z:= z1;
z.Frac:= z.Frac + z2.Frac;
z.Round:= z.Round + z2.Round;
if z.Frac<z1.Frac then inc(z.Round)
end
else
-// if z1.QWordValue > z2.QWordValue then
if (z1.Round > z2.Round) or ((z1.Round = z2.Round) and (z1.Frac > z2.Frac)) then
begin
z.isNegative:= z1.isNegative;
-// z.QWordValue:= z1.QWordValue - z2.QWordValue
z.Round:= z1.Round - z2.Round;
z.Frac:= z1.Frac - z2.Frac;
if z2.Frac > z1.Frac then dec(z.Round)
@@ -312,21 +331,18 @@
else
begin
z.isNegative:= z2.isNegative;
-// z.QWordValue:= z2.QWordValue - z1.QWordValue
z.Round:= z2.Round - z1.Round;
z.Frac:= z2.Frac-z1.Frac;
if z2.Frac < z1.Frac then dec(z.Round)
end
end;
-operator - (const z1, z2: hwFloat) z : hwFloat;
+operator - (const z1, z2: hwFloat) z : hwFloat; inline;
begin
if z1.isNegative = z2.isNegative then
-// if z1.QWordValue > z2.QWordValue then
if (z1.Round > z2.Round) or ((z1.Round = z2.Round) and (z1.Frac > z2.Frac)) then
begin
z.isNegative:= z1.isNegative;
-// z.QWordValue:= z1.QWordValue - z2.QWordValue
z.Round:= z1.Round - z2.Round;
z.Frac:= z1.Frac-z2.Frac;
if z2.Frac > z1.Frac then dec(z.Round)
@@ -334,14 +350,12 @@
else
begin
z.isNegative:= not z2.isNegative;
-// z.QWordValue:= z2.QWordValue - z1.QWordValue
z.Round:= z2.Round - z1.Round;
z.Frac:= z2.Frac-z1.Frac;
if z2.Frac < z1.Frac then dec(z.Round)
end
else
begin
-// z.QWordValue:= z1.QWordValue + z2.QWordValue
z:= z1;
z.Frac:= z.Frac + z2.Frac;
z.Round:= z.Round + z2.Round;
@@ -349,33 +363,57 @@
end
end;
+operator < (const z1, z2: hwFloat) b : boolean; inline;
+begin
+if z1.isNegative xor z2.isNegative then
+ b:= z1.isNegative
+else
+(* Not so sure this specialcase is a win w/ Round/Frac. have to do more tests anyway.
+ if (z1.Round = z2.Round and (z1.Frac = z2.Frac)) then
+ b:= false
+ else *)
+ b:= ((z1.Round < z2.Round) or ((z1.Round = z2.Round) and (z1.Frac < z2.Frac))) <> z1.isNegative
+end;
+
+operator > (const z1, z2: hwFloat) b : boolean; inline;
+begin
+if z1.isNegative xor z2.isNegative then
+ b:= z2.isNegative
+else
+(*
+ if z1.QWordValue = z2.QWordValue then
+ b:= false
+ else*)
+ b:= ((z1.Round > z2.Round) or ((z1.Round = z2.Round) and (z1.Frac > z2.Frac))) <> z1.isNegative
+end;
+
function isZero(const z: hwFloat): boolean; inline;
begin
isZero := z.Round = 0 and z.Frac = 0;
end;
{$ENDIF}
-operator - (const z1: hwFloat) z : hwFloat;
+operator - (const z1: hwFloat) z : hwFloat; inline;
begin
z:= z1;
z.isNegative:= not z.isNegative
end;
-operator * (const z1, z2: hwFloat) z : hwFloat;
+operator * (const z1, z2: hwFloat) z : hwFloat; inline;
begin
z.isNegative:= z1.isNegative xor z2.isNegative;
z.QWordValue:= QWord(z1.Round) * z2.Frac + QWord(z1.Frac) * z2.Round + ((QWord(z1.Frac) * z2.Frac) shr 32);
z.Round:= z.Round + QWord(z1.Round) * z2.Round;
end;
-operator * (const z1: hwFloat; const z2: LongInt) z : hwFloat;
+operator * (const z1: hwFloat; const z2: LongInt) z : hwFloat; inline;
begin
z.isNegative:= z1.isNegative xor (z2 < 0);
z.QWordValue:= z1.QWordValue * abs(z2)
end;
-operator / (const z1: hwFloat; z2: hwFloat) z : hwFloat;
+operator / (const z1: hwFloat; z2: hwFloat) z : hwFloat; inline;
var t: hwFloat;
begin
z.isNegative:= z1.isNegative xor z2.isNegative;
@@ -397,34 +435,12 @@
end
end;
-operator / (const z1: hwFloat; const z2: LongInt) z : hwFloat;
+operator / (const z1: hwFloat; const z2: LongInt) z : hwFloat; inline;
begin
z.isNegative:= z1.isNegative xor (z2 < 0);
z.QWordValue:= z1.QWordValue div abs(z2)
end;
-operator < (const z1, z2: hwFloat) b : boolean;
-begin
-if z1.isNegative xor z2.isNegative then
- b:= z1.isNegative
-else
- if z1.QWordValue = z2.QWordValue then
- b:= false
- else
- b:= (z1.QWordValue < z2.QWordValue) xor z1.isNegative
-end;
-
-operator > (const z1, z2: hwFloat) b : boolean;
-begin
-if z1.isNegative xor z2.isNegative then
- b:= z2.isNegative
-else
- if z1.QWordValue = z2.QWordValue then
- b:= false
- else
- b:= (z1.QWordValue > z2.QWordValue) xor z2.isNegative
-end;
-
function cstr(const z: hwFloat): shortstring;
var tmpstr: shortstring;
begin
@@ -453,7 +469,7 @@
hwAbs.isNegative:= false
end;
-function hwSqr(const t: hwFloat): hwFloat;
+function hwSqr(const t: hwFloat): hwFloat; inline;
begin
hwSqr.isNegative:= false;
hwSqr.QWordValue:= ((QWord(t.Round) * t.Round) shl 32) + QWord(t.Round) * t.Frac * 2 + ((QWord(t.Frac) * t.Frac) shr 32);