eliminate an extraneous use of SmallVector in a case where
a fixed size buffer is perfectly fine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91527 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/System/Unix/Path.inc b/lib/System/Unix/Path.inc
index 33b26f7..b544bd8 100644
--- a/lib/System/Unix/Path.inc
+++ b/lib/System/Unix/Path.inc
@@ -414,21 +414,19 @@
return path.substr(dot + 1);
}
-bool Path::getMagicNumber(std::string& Magic, unsigned len) const {
+bool Path::getMagicNumber(std::string &Magic, unsigned len) const {
assert(len < 1024 && "Request for magic string too long");
- SmallVector<char, 128> Buf;
- Buf.resize(1 + len);
- char* buf = Buf.data();
+ char Buf[1025];
int fd = ::open(path.c_str(), O_RDONLY);
if (fd < 0)
return false;
- ssize_t bytes_read = ::read(fd, buf, len);
+ ssize_t bytes_read = ::read(fd, Buf, len);
::close(fd);
if (ssize_t(len) != bytes_read) {
Magic.clear();
return false;
}
- Magic.assign(buf,len);
+ Magic.assign(Buf, len);
return true;
}