avoid temporary std::string in non posix_spawn path.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101723 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-04-18 17:34:10 +00:00
parent d7aef9b440
commit d65077a509

View File

@ -104,17 +104,17 @@ Program::FindProgramByName(const std::string& progName) {
static bool RedirectIO(const Path *Path, int FD, std::string* ErrMsg) {
if (Path == 0) // Noop
return false;
std::string File;
const char *File;
if (Path->isEmpty())
// Redirect empty paths to /dev/null
File = "/dev/null";
else
File = Path->str();
File = Path->c_str();
// Open the file
int InFD = open(File.c_str(), FD == 0 ? O_RDONLY : O_WRONLY|O_CREAT, 0666);
int InFD = open(File, FD == 0 ? O_RDONLY : O_WRONLY|O_CREAT, 0666);
if (InFD == -1) {
MakeErrMsg(ErrMsg, "Cannot open file '" + File + "' for "
MakeErrMsg(ErrMsg, "Cannot open file '" + std::string(File) + "' for "
+ (FD == 0 ? "input" : "output"));
return true;
}