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Ambiguous unary operator use with number constant

Reports an unary operator followed by a dot qualifier such as

Code like can be misleading because - has a lower precedence than .inc(). As a result, evaluates to -2 and not 0 as it might be expected.

Wrap unary operator and value with () quick-fix can be used to amend the code automatically.

Locating this inspection


Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Kotlin | Probable bugs


By default bundled with

IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,

Can be installed with plugin

Kotlin, 241.18072-IJ

Last modified: 18 June 2024