fix: double/float is based on the IEEE 754 floating-point standard. I…

…t uses binary floating-point representation, and some decimal numbers cannot be represented exactly in binary, leading to precision errors.
neodix42 · Dec 7, 2024 · 0b0e772 · 0b0e772
1 parent 11dac5a
commit 0b0e772
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/utils/src/main/java/org/ton/java/utils/Utils.java b/utils/src/main/java/org/ton/java/utils/Utils.java
@@ -718,7 +718,7 @@ public static String streamToString(InputStream is) {
   }
 
   public static BigInteger toNano(double toncoins, Integer precision) {
-    return new BigDecimal(toncoins).multiply(BigDecimal.TEN.pow(precision)).toBigInteger();
+    return BigDecimal.valueOf(toncoins).multiply(BigDecimal.TEN.pow(precision)).toBigInteger();
   }
 
   public static BigInteger toNano(BigDecimal toncoins, Integer precision) {
@@ -769,7 +769,7 @@ public static BigInteger toNano(String toncoins) {
 
   public static BigInteger toNano(double toncoins) {
     checkToncoinsOverflow(
-        new BigDecimal(toncoins).multiply(BigDecimal.valueOf(BLN1)).toBigInteger());
+        BigDecimal.valueOf(toncoins).multiply(BigDecimal.valueOf(BLN1)).toBigInteger());
     if (BigDecimal.valueOf(toncoins).scale() > 9) {
       throw new Error("Round the number to 9 decimals first");
     }
@@ -778,7 +778,7 @@ public static BigInteger toNano(double toncoins) {
 
   public static BigInteger toNano(float toncoins) {
     checkToncoinsOverflow(
-        new BigDecimal(toncoins).multiply(BigDecimal.valueOf(BLN1)).toBigInteger());
+        BigDecimal.valueOf(toncoins).multiply(BigDecimal.valueOf(BLN1)).toBigInteger());
     if (BigDecimal.valueOf(toncoins).scale() > 9) {
       throw new Error("Round the number to 9 decimals first");
     }