diff options
Diffstat (limited to 'src/System.Private.CoreLib/src/System/String.cs')
| -rw-r--r-- | src/System.Private.CoreLib/src/System/String.cs | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/System.Private.CoreLib/src/System/String.cs b/src/System.Private.CoreLib/src/System/String.cs index 4ef655fbb..a10d212c0 100644 --- a/src/System.Private.CoreLib/src/System/String.cs +++ b/src/System.Private.CoreLib/src/System/String.cs @@ -297,6 +297,14 @@ namespace System if (startIndex < 0) throw new ArgumentOutOfRangeException(nameof(startIndex), SR.ArgumentOutOfRange_StartIndex); + if (value == null) + { + if (length == 0) + return Empty; + + throw new ArgumentNullException(nameof(value)); + } + byte* pStart = (byte*)(value + startIndex); if (pStart < value) { |