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Fix rdar://5843510 don't assert and die when an invalid output 

file is specified, print a happy little error message.

llvm-svn: 49518
This commit is contained in:
Chris Lattner 2008-04-11 06:14:11 +00:00
parent 90bde997b3
commit 47fb9efa5d
1 changed files with 12 additions and 4 deletions
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16
clang/Driver/PrintPreprocessedOutput.cpp
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@ -60,8 +60,14 @@ static void InitOutputBuffer(const std::string& Output) {
if (!Output.size() || Output == "-") if (!Output.size() || Output == "-")
OutputFILE = stdout; OutputFILE = stdout;
else { else {
OutputFILE = fopen(Output.c_str(), "w+");
OutputFilename = Output; OutputFilename = Output;
OutputFILE = fopen(Output.c_str(), "w+");
if (OutputFILE == 0) {
fprintf(stderr, "Error opening output file '%s'.\n", Output.c_str());
exit(1);
}
} }
assert(OutputFILE && "failed to open output file"); assert(OutputFILE && "failed to open output file");
@ -73,11 +79,13 @@ static void InitOutputBuffer(const std::string& Output) {
if (!Output.size() || Output == "-") if (!Output.size() || Output == "-")
OutputFD = STDOUT_FILENO; OutputFD = STDOUT_FILENO;
else { else {
OutputFD = open(Output.c_str(), O_WRONLY|O_CREAT|O_TRUNC, 0644);
OutputFilename = Output; OutputFilename = Output;
OutputFD = open(Output.c_str(), O_WRONLY|O_CREAT|O_TRUNC, 0644);
if (OutputFD < 0) {
fprintf(stderr, "Error opening output file '%s'.\n", Output.c_str());
exit(1);
}
} }
assert(OutputFD >= 0 && "failed to open output file");
#endif #endif
} }