fix display of source lines with null characters
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154981 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/TextDiagnostic.cpp b/lib/Frontend/TextDiagnostic.cpp
index 3c35ab2..6636238 100644
--- a/lib/Frontend/TextDiagnostic.cpp
+++ b/lib/Frontend/TextDiagnostic.cpp
@@ -839,10 +839,13 @@
// Get information about the buffer it points into.
bool Invalid = false;
- const char *BufStart = SM.getBufferData(FID, &Invalid).data();
+ StringRef BufData = SM.getBufferData(FID, &Invalid);
if (Invalid)
return;
+ const char *BufStart = BufData.data();
+ const char *BufEnd = BufStart + BufData.size();
+
unsigned LineNo = SM.getLineNumber(FID, FileOffset);
unsigned ColNo = SM.getColumnNumber(FID, FileOffset);
unsigned CaretEndColNo
@@ -856,7 +859,7 @@
// Compute the line end. Scan forward from the error position to the end of
// the line.
const char *LineEnd = TokPtr;
- while (*LineEnd != '\n' && *LineEnd != '\r' && *LineEnd != '\0')
+ while (*LineEnd != '\n' && *LineEnd != '\r' && LineEnd!=BufEnd)
++LineEnd;
// FIXME: This shouldn't be necessary, but the CaretEndColNo can extend past
diff --git a/test/Misc/wnull-character.cpp b/test/Misc/wnull-character.cpp
new file mode 100644
index 0000000..a618da2
--- /dev/null
+++ b/test/Misc/wnull-character.cpp
Binary files differ
