assert

Platform and version requirements: JVM (1.0), Native (1.0)
fun assert(value: Boolean)
For JVM

Throws an AssertionError if the value is false and runtime assertions have been enabled on the JVM using the -ea JVM option.

For Native

Throws an AssertionError if the value is false and runtime assertions have been enabled during compilation.

Platform and version requirements: JVM (1.0), Native (1.0)
inline fun assert(value: Boolean, lazyMessage: () -> Any)
For JVM

Throws an AssertionError calculated by lazyMessage if the value is false and runtime assertions have been enabled on the JVM using the -ea JVM option.

For Native

Throws an AssertionError calculated by lazyMessage if the value is false and runtime assertions have been enabled during compilation.

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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/assert.html