From 98f5c5da7390b3c473b771cbc3d369c3e910894f Mon Sep 17 00:00:00 2001
From: Ivan Hetman <Ihromant@users.noreply.github.com>
Date: Mon, 23 Nov 2020 10:49:33 +0200
Subject: [PATCH] Add Math.floorMod and Math.floorDiv (#544)

---
 .../org/teavm/classlib/java/lang/TMath.java   | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/classlib/src/main/java/org/teavm/classlib/java/lang/TMath.java b/classlib/src/main/java/org/teavm/classlib/java/lang/TMath.java
index 22ea409f0..8a10cdeba 100644
--- a/classlib/src/main/java/org/teavm/classlib/java/lang/TMath.java
+++ b/classlib/src/main/java/org/teavm/classlib/java/lang/TMath.java
@@ -127,6 +127,32 @@ public final class TMath extends TObject {
         return (long) (a + signum(a) * 0.5);
     }
 
+    public static int floorDiv(int a, int b) {
+        int div = a / b;
+        return (a ^ b) < 0 && div * b != a ? div - 1 : div;
+    }
+
+    public static long floorDiv(long a, int b) {
+        return floorDiv(a, (long) b);
+    }
+
+    public static long floorDiv(long a, long b) {
+        long div = a / b;
+        return (a ^ b) < 0 && div * b != a ? div - 1 : div;
+    }
+
+    public static int floorMod(int a, int b) {
+        return a - floorDiv(a, b) * b;
+    }
+
+    public static int floorMod(long a, int b) {
+        return (int) (a - floorDiv(a, b) * b);
+    }
+
+    public static long floorMod(long a, long b) {
+        return a - floorDiv(a, b) * b;
+    }
+
     @Unmanaged
     public static double random() {
         return PlatformDetector.isC() ? randomC() : randomImpl();