Character.CodePointBefore Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Overloads
| CodePointBefore(Char[], Int32, Int32) |
Returns the code point preceding the given index of the
|
| CodePointBefore(String, Int32) |
Returns the code point preceding the given index of the
|
| CodePointBefore(ICharSequence, Int32) |
Returns the code point preceding the given index of the
|
| CodePointBefore(Char[], Int32) |
Returns the code point preceding the given index of the
|
CodePointBefore(Char[], Int32, Int32)
Returns the code point preceding the given index of the
char array, where only array elements with
index greater than or equal to start
can be used.
[Android.Runtime.Register("codePointBefore", "([CII)I", "")]
public static int CodePointBefore (char[]? a, int index, int start);[<Android.Runtime.Register("codePointBefore", "([CII)I", "")>]
static member CodePointBefore : char[] * int * int -> intParameters
- a
- Char[]
the char array
- index
- Int32
the index following the code point that should be returned
- start
- Int32
the index of the first array element in the
char array
Returns
the Unicode code point value before the given index.
- Attributes
Exceptions
if seq is null.
if the index <= start, start ,
index is greater than the length of seq, or
if start is equal or greater than the length of
seq.
Remarks
Returns the code point preceding the given index of the char array, where only array elements with index greater than or equal to start can be used. If the char value at (index - 1) in the char array is in the low-surrogate range, (index - 2) is not less than start, and the char value at (index - 2) in the char array is in the high-surrogate range, then the supplementary code point corresponding to this surrogate pair is returned. Otherwise, the char value at (index - 1) is returned.
Added in 1.5.
Java documentation for java.lang.Character.codePointBefore(char[], int, int).
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
Applies to
CodePointBefore(String, Int32)
Returns the code point preceding the given index of the
CharSequence.
public static int CodePointBefore (string seq, int index);static member CodePointBefore : string * int -> intParameters
- seq
- String
the CharSequence instance
- index
- Int32
the index following the code point that should be returned
Returns
the Unicode code point value before the given index.
Remarks
Returns the code point preceding the given index of the CharSequence. If the char value at (index - 1) in the CharSequence is in the low-surrogate range, (index - 2) is not negative, and the char value at (index - 2) in the CharSequence is in the high-surrogate range, then the supplementary code point corresponding to this surrogate pair is returned. Otherwise, the char value at (index - 1) is returned.
Added in 1.5.
Java documentation for java.lang.Character.codePointBefore(java.lang.CharSequence, int).
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
Applies to
CodePointBefore(ICharSequence, Int32)
Returns the code point preceding the given index of the
CharSequence.
[Android.Runtime.Register("codePointBefore", "(Ljava/lang/CharSequence;I)I", "")]
public static int CodePointBefore (Java.Lang.ICharSequence seq, int index);[<Android.Runtime.Register("codePointBefore", "(Ljava/lang/CharSequence;I)I", "")>]
static member CodePointBefore : Java.Lang.ICharSequence * int -> intParameters
- seq
- ICharSequence
the CharSequence instance
- index
- Int32
the index following the code point that should be returned
Returns
the Unicode code point value before the given index.
- Attributes
Exceptions
if seq is null.
if the index is less than 1 or greater than the
length of seq.
Remarks
Returns the code point preceding the given index of the CharSequence. If the char value at (index - 1) in the CharSequence is in the low-surrogate range, (index - 2) is not negative, and the char value at (index - 2) in the CharSequence is in the high-surrogate range, then the supplementary code point corresponding to this surrogate pair is returned. Otherwise, the char value at (index - 1) is returned.
Added in 1.5.
Java documentation for java.lang.Character.codePointBefore(java.lang.CharSequence, int).
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
Applies to
CodePointBefore(Char[], Int32)
Returns the code point preceding the given index of the
char array.
[Android.Runtime.Register("codePointBefore", "([CI)I", "")]
public static int CodePointBefore (char[]? a, int index);[<Android.Runtime.Register("codePointBefore", "([CI)I", "")>]
static member CodePointBefore : char[] * int -> intParameters
- a
- Char[]
the char array
- index
- Int32
the index following the code point that should be returned
Returns
the Unicode code point value before the given index.
- Attributes
Exceptions
if seq is null.
if the index is less than 1 or greater than the
length of seq.
Remarks
Returns the code point preceding the given index of the char array. If the char value at (index - 1) in the char array is in the low-surrogate range, (index - 2) is not negative, and the char value at (index - 2) in the char array is in the high-surrogate range, then the supplementary code point corresponding to this surrogate pair is returned. Otherwise, the char value at (index - 1) is returned.
Added in 1.5.
Java documentation for java.lang.Character.codePointBefore(char[], int).
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.