-/// getUniqueFilename - Return a filename with the specified prefix. If the
-/// file does not exist yet, return it, otherwise add a suffix to make it
-/// unique.
-///
-std::string getUniqueFilename(const std::string &FilenameBase) {
- if (!std::ifstream(FilenameBase.c_str()))
- return FilenameBase; // Couldn't open the file? Use it!
-
- // Create a pattern for mkstemp...
- char *FNBuffer = new char[FilenameBase.size()+8];
- strcpy(FNBuffer, FilenameBase.c_str());
- strcpy(FNBuffer+FilenameBase.size(), "-XXXXXX");
-
- // Agree on a temporary file name to use....
- int TempFD;
- if ((TempFD = mkstemp(FNBuffer)) == -1) {
- std::cerr << "bugpoint: ERROR: Cannot create temporary file in the current "
- << " directory!\n";
- exit(1);
+ V1 = strtod(&StrTmp[0], const_cast<char**>(&F1NumEnd));
+ F1NumEnd = F1P + (F1NumEnd-&StrTmp[0]);
+ }
+
+ if (*F2NumEnd == 'D' || *F2NumEnd == 'd') {
+ // Copy string into tmp buffer to replace the 'D' with an 'e'.
+ SmallString<200> StrTmp(F2P, EndOfNumber(F2NumEnd)+1);
+ // Strange exponential notation!
+ StrTmp[static_cast<unsigned>(F2NumEnd-F2P)] = 'e';
+
+ V2 = strtod(&StrTmp[0], const_cast<char**>(&F2NumEnd));
+ F2NumEnd = F2P + (F2NumEnd-&StrTmp[0]);
+ }
+ }
+
+ if (F1NumEnd == F1P || F2NumEnd == F2P) {
+ if (ErrorMsg) {
+ *ErrorMsg = "FP Comparison failed, not a numeric difference between '";
+ *ErrorMsg += F1P[0];
+ *ErrorMsg += "' and '";
+ *ErrorMsg += F2P[0];
+ *ErrorMsg += "'";
+ }
+ return true;
+ }
+
+ // Check to see if these are inside the absolute tolerance
+ if (AbsTolerance < std::abs(V1-V2)) {
+ // Nope, check the relative tolerance...
+ double Diff;
+ if (V2)
+ Diff = std::abs(V1/V2 - 1.0);
+ else if (V1)
+ Diff = std::abs(V2/V1 - 1.0);
+ else
+ Diff = 0; // Both zero.
+ if (Diff > RelTolerance) {
+ if (ErrorMsg) {
+ raw_string_ostream(*ErrorMsg)
+ << "Compared: " << V1 << " and " << V2 << '\n'
+ << "abs. diff = " << std::abs(V1-V2) << " rel.diff = " << Diff << '\n'
+ << "Out of tolerance: rel/abs: " << RelTolerance << '/'
+ << AbsTolerance;
+ }
+ return true;
+ }