/// <summary>
/// 获取第一个匹配值
/// </summary>
/// <param name="array">数组数据</param>
/// <param name="isValue">数据匹配器</param>
/// <param name="index">起始位置</param>
/// <returns>第一个匹配值,失败为default(ulong)</returns>
public static ulong firstOrDefault(this SubArray <ulong> array, Func <ulong, bool> isValue, int index)
{
if ((uint)index < (uint)array.Length)
{
fixed(ulong *valueFixed = array.GetFixedBuffer())
{
ulong *valueIndex = FixedArray.IndexOf(valueFixed + array.Start + index, array.Length - index, isValue);
if (valueIndex != null)
{
return(*valueIndex);
}
}
}
return(default(ulong));
}
/// <summary>
/// 替换数据
/// </summary>
/// <param name="array">数组数据</param>
/// <param name="value">新值</param>
/// <param name="isValue">数据匹配器</param>
public static SubArray <ulong> replaceFirst(this SubArray <ulong> array, ulong value, Func <ulong, bool> isValue)
{
if (array.Length != 0)
{
fixed(ulong *valueFixed = array.GetFixedBuffer())
{
ulong *valueIndex = FixedArray.IndexOf(valueFixed + array.Start, array.Length, isValue);
if (valueIndex != null)
{
*valueIndex = value;
}
}
}
return(array);
}
/// <summary>
/// 获取匹配数据位置
/// </summary>
/// <param name="array">数据数组</param>
/// <param name="isValue">数据匹配器</param>
/// <returns>匹配位置,失败为-1</returns>
public static int indexOf(this SubArray <ulong> array, Func <ulong, bool> isValue)
{
if (array.Length != 0)
{
fixed(ulong *valueFixed = array.GetFixedBuffer())
{
ulong *start = valueFixed + array.Start, index = FixedArray.IndexOf(start, array.Length, isValue);
if (index != null)
{
return((int)(index - valueFixed));
}
}
}
return(-1);
}
/// <summary>
/// 获取匹配数据位置
/// </summary>
/// <param name="array">数组数据</param>
/// <param name="value">匹配数据</param>
/// <returns>匹配位置,失败为-1</returns>
public static int indexOf(this LeftArray <ulong> array, ulong value)
{
if (array.Length != 0)
{
fixed(ulong *valueFixed = array.GetFixedBuffer())
{
ulong *index = FixedArray.IndexOf(valueFixed, array.Length, value);
if (index != null)
{
return((int)(index - valueFixed));
}
}
}
return(-1);
}
