shithub: rgbds

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Resolve #554: STRSUB("<N-char string>", N, 0) will not warn "Position N is past the end of the string"

--- a/src/asm/asmy.y

+++ b/src/asm/asmy.y

@@ -461,7 +461,7 @@

 		srcIndex++;

 	}

-	if (!src[srcIndex])

+	if (!src[srcIndex] && len)

 		warning(WARNING_BUILTIN_ARG, "STRSUB: Position %lu is past the end of the string",

 			(unsigned long)pos);