I am trying to create a binding for `time.h` heade...

# kotlin-native

[Aregev2]

I am trying to create a binding for time.h header and the cinterop tool throws an exception, can someone help?

time.def

headers = /usr/include/time.h
compilerOpts = -std=c99

Exception in thread "main" java.lang.Error: /usr/include/time.h:37:10: fatal error: 'bits/types/clock_t.h' file not found
	at org.jetbrains.kotlin.native.interop.indexer.UtilsKt.ensureNoCompileErrors(Utils.kt:137)
	at org.jetbrains.kotlin.native.interop.indexer.IndexerKt.indexDeclarations(Indexer.kt:902)
	at org.jetbrains.kotlin.native.interop.indexer.IndexerKt.buildNativeIndexImpl(Indexer.kt:892)
	at org.jetbrains.kotlin.native.interop.indexer.NativeIndexKt.buildNativeIndex(NativeIndex.kt:56)
	at org.jetbrains.kotlin.native.interop.gen.jvm.MainKt.processCLib(main.kt:284)
	at org.jetbrains.kotlin.native.interop.gen.jvm.MainKt.interop(main.kt:38)
	at org.jetbrains.kotlin.cli.utilities.InteropCompilerKt.invokeInterop(InteropCompiler.kt:100)
	at org.jetbrains.kotlin.cli.utilities.MainKt.main(main.kt:29)

[Aregev2]

Isn't there a way to automatically include all the #include <> inside the header file itself?

[svyatoslav.scherbina]

All the includes inside the header are automatically included.
Your interop configuration is invalid.
Declarations from time.h etc are already available from platform libraries without any additional configuration. You can try to add import platform.posix.*.

[Aregev2]

Oh thank you

[Aregev2]

How can a assign the address of val x to a variable (newbie question)

[svyatoslav.scherbina]

You can’t. Kotlin variable doesn’t have an address currently.

[Aregev2]

🤔

[msink]

If x is Array - x.toCValues().ptr

[Aregev2]

@msink How can I de-reference a CPointer<IntVar>?

val int = malloc(4)?.reinterpret<IntVar>()
println(int?.rawValue)

[msink]

like this:

memScoped {
    val time = alloc<time_tVar>()
    time.value = v
    return localtime(time.ptr)!!
}