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| author | Daniel Dunbar <daniel@zuster.org> | 2010-06-15 19:20:28 +0000 |
|---|---|---|
| committer | Daniel Dunbar <daniel@zuster.org> | 2010-06-15 19:20:28 +0000 |
| commit | c6d0fe557f8572e57009692e12a574809f090420 (patch) | |
| tree | e921f681c7620301b45bfe5ac278619a10b04b0b /lib | |
| parent | 252763fb87f6470930ba1a281563e4ef1a383f9e (diff) | |
| download | external_llvm-c6d0fe557f8572e57009692e12a574809f090420.zip external_llvm-c6d0fe557f8572e57009692e12a574809f090420.tar.gz external_llvm-c6d0fe557f8572e57009692e12a574809f090420.tar.bz2 | |
fpcmp: Fix a possible infinite loop when comparing something like:
1..19 ok
to
1..20 o k
(yes, the odd space is necessary).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106032 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Support/FileUtilities.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Support/FileUtilities.cpp b/lib/Support/FileUtilities.cpp index 095395f..11c1e02 100644 --- a/lib/Support/FileUtilities.cpp +++ b/lib/Support/FileUtilities.cpp @@ -51,7 +51,15 @@ static const char *BackupNumber(const char *Pos, const char *FirstChar) { if (!isNumberChar(*Pos)) return Pos; // Otherwise, return to the start of the number. + bool HasPeriod = false; while (Pos > FirstChar && isNumberChar(Pos[-1])) { + // Backup over at most one period. + if (Pos[-1] == '.') { + if (HasPeriod) + break; + HasPeriod = true; + } + --Pos; if (Pos > FirstChar && isSignedChar(Pos[0]) && !isExponentChar(Pos[-1])) break; |