Example: Find the leftmost occurrence of the given string

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public static int main (string[] args) {
	string haystack = "Tell me on the way Brigadier! Tell me on the way!";
	string needle = "Tell me";
	int index = -1;

	// Output: ``0``
	index = haystack.index_of (needle);
	print ("%d\n", index);

	// Output: ``30``
	index = haystack.index_of (needle, 5);
	print ("%d\n", index);

	// Output: ``-1``
	index = haystack.index_of ("NOT-AVAILABLE", 5);
	print ("%d\n", index);

	// Output: ``0 30 -1``
	index = 0;
	do {
		index = haystack.index_of (needle, index);
		print ("%d ", index);
	} while (index++ >= 0);
	print ("\n");

	return 0;
}

 valac --pkg glib-2.0 string.index_of.vala

See:

• string.index_of

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