fix big integer for native

ton-community · Feb 7, 2023 · f2a504f · f2a504f
1 parent 4a223ef
commit f2a504f
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Showing 3 changed files with 13 additions and 5 deletions.
diff --git a/README.md b/README.md
@@ -29,7 +29,7 @@ https://github.com/andreypfau/ton-kotlin/wiki/TON-Kotlin-documentation
 [telegram]: https://t.me/tonkotlin
 
 [maven-central-svg]: https://img.shields.io/maven-central/v/org.ton/ton-kotlin?color=blue
-[kotlin-svg]: https://img.shields.io/badge/Kotlin-1.8.0-blue.svg?logo=kotlin
+[kotlin-svg]: https://img.shields.io/badge/Kotlin-1.8.10-blue.svg?logo=kotlin
 [telegram-svg]: https://img.shields.io/badge/Telegram-join%20chat-blue.svg?logo=telegram
 [ton-svg]: https://img.shields.io/badge/Based%20on-TON-blue
 [license-svg]: https://img.shields.io/github/license/andreypfau/ton-kotlin?color=blue
diff --git a/ton-kotlin-bigint/build.gradle.kts b/ton-kotlin-bigint/build.gradle.kts
@@ -2,9 +2,8 @@ kotlin {
     sourceSets {
         val commonMain by getting {
             dependencies {
-                implementation(projects.tonKotlinCrypto)
                 implementation(libs.serialization.json)
-                implementation(libs.atomicfu)
+                implementation("com.ionspin.kotlin:bignum:0.3.7")
             }
         }
         val commonTest by getting

diff --git a/ton-kotlin-bigint/src/nativeMain/kotlin/org/ton/bigint/BigInt.kt b/ton-kotlin-bigint/src/nativeMain/kotlin/org/ton/bigint/BigInt.kt
@@ -1,6 +1,7 @@
 package org.ton.bigint
 
 import com.ionspin.kotlin.bignum.integer.BigInteger
+import com.ionspin.kotlin.bignum.integer.BigIntegerArithmetic
 import com.ionspin.kotlin.bignum.integer.util.fromTwosComplementByteArray
 
 @Suppress("ConvertSecondaryConstructorToPrimary")
@@ -50,8 +51,16 @@ public actual fun Int.toBigInt(): BigInt =
 public actual fun Long.toBigInt(): BigInt =
     BigInt(BigInteger.fromLong(this))
 
-public actual val BigInt.bitLength: Int get() =
-    TODO()
+public actual val BigInt.bitLength: Int get() {
+    // TODO: https://github.com/ionspin/kotlin-multiplatform-bignum/pull/254
+    return if (value.isNegative) {
+        if (value == BigInteger.ONE.negate()) 0
+        else (value.abs() - 1).toString(2).length
+    } else {
+        if (value.isZero()) 0
+        else value.toString(2).length
+    }
+}
 
 public actual val BigInt.sign: Int get() =
     value.signum()