IndexOf() [2/16]

unsafe int System.Globalization.CompareInfo.IndexOf ( ReadOnlySpan< char > source, ReadOnlySpan< char > value, CompareOptions options = CompareOptions::None )

inline

Definition at line 699 of file CompareInfo.cs.

    {
        if ((options & ~(CompareOptions.IgnoreCase | CompareOptions.IgnoreNonSpace | CompareOptions.IgnoreSymbols | CompareOptions.IgnoreKanaType | CompareOptions.IgnoreWidth)) == 0)
        {
            if (!GlobalizationMode.Invariant)
            {
                if (value.IsEmpty)
                {
                    return 0;
                }
                return IndexOfCore(source, value, options, null, fromBeginning: true);
            }
            if ((options & CompareOptions.IgnoreCase) == 0)
            {
                return source.IndexOf(value);
            }
            return Ordinal.IndexOfOrdinalIgnoreCase(source, value);
        }
        switch (options)
        {
        case CompareOptions.Ordinal:
            return source.IndexOf(value);
        case CompareOptions.OrdinalIgnoreCase:
            return Ordinal.IndexOfOrdinalIgnoreCase(source, value);
        default:
            ThrowHelper.ThrowArgumentException(ExceptionResource.Argument_InvalidFlag, ExceptionArgument.options);
            return -1;
        }
    }

References System.Globalization.CompareInfo.IndexOfCore(), System.Globalization.Ordinal.IndexOfOrdinalIgnoreCase(), System.Globalization.GlobalizationMode.Invariant, System.options, System.source, System.ThrowHelper.ThrowArgumentException(), and System.value.