Esempio n. 1
0
bool Tpetra::Utils::parseRfmt(Teuchos::ArrayRCP<char> fmt, int &perline, int &width, int &prec, char &valformat) {
  TEUCHOS_TEST_FOR_EXCEPT(fmt.size() != 0 && fmt[fmt.size()-1] != '\0');
  std::transform(fmt.begin(), fmt.end(), fmt, static_cast < int(*)(int) > (std::toupper));
  // find the first left paren '(' and the last right paren ')'
  Teuchos::ArrayRCP<char>::iterator firstLeftParen = std::find( fmt.begin(),  fmt.end(), '(');
  Teuchos::ArrayRCP<char>::iterator lastRightParen = std::find(std::reverse_iterator<Teuchos::ArrayRCP<char>::iterator>(fmt.end()), 
                                                               std::reverse_iterator<Teuchos::ArrayRCP<char>::iterator>(fmt.begin()), 
                                                               ')').base()-1;
  // select the substring between the parens, including them
  // if neither was found, set the string to empty
  if (firstLeftParen == fmt.end() || lastRightParen == fmt.begin()) {
    fmt.resize(0 + 1);
    fmt[0] = '\0';
  }
  else {
    fmt += (firstLeftParen - fmt.begin());
    size_t newLen = lastRightParen - firstLeftParen + 1;
    fmt.resize(newLen + 1);
    fmt[newLen] = '\0';
  }
  if (std::find(fmt.begin(),fmt.end(),'P') != fmt.end()) {
    // not supported
    return true;
  }
  bool error = true;
  if (std::sscanf(fmt.getRawPtr(),"(%d%c%d.%d)",&perline,&valformat,&width,&prec) == 4) {
    if (valformat == 'E' || valformat == 'D' || valformat == 'F') {
      error = false;
    }
  } 
  return error;
}
Esempio n. 2
0
void Tpetra::Utils::readHBHeader(std::ifstream &fin, Teuchos::ArrayRCP<char> &Title, Teuchos::ArrayRCP<char> &Key, Teuchos::ArrayRCP<char> &Type, 
                           int &Nrow, int &Ncol, int &Nnzero, int &Nrhs,
                           Teuchos::ArrayRCP<char> &Ptrfmt, Teuchos::ArrayRCP<char> &Indfmt, Teuchos::ArrayRCP<char> &Valfmt, Teuchos::ArrayRCP<char> &Rhsfmt, 
                           int &Ptrcrd, int &Indcrd, int &Valcrd, int &Rhscrd, Teuchos::ArrayRCP<char> &Rhstype) {
  int Totcrd, Neltvl, Nrhsix;
  const int MAXLINE = 81;
  char line[MAXLINE];
  //
  Title.resize(72 + 1);  std::fill(Title.begin(),  Title.end(),  '\0');
  Key.resize(8 + 1);     std::fill(Key.begin(),    Key.end(),    '\0');
  Type.resize(3 + 1);    std::fill(Type.begin(),   Type.end(),   '\0');
  Ptrfmt.resize(16 + 1); std::fill(Ptrfmt.begin(), Ptrfmt.end(), '\0');
  Indfmt.resize(16 + 1); std::fill(Indfmt.begin(), Indfmt.end(), '\0');
  Valfmt.resize(20 + 1); std::fill(Valfmt.begin(), Valfmt.end(), '\0');
  Rhsfmt.resize(20 + 1); std::fill(Rhsfmt.begin(), Rhsfmt.end(), '\0');
  //
  const std::string errStr("Tpetra::Utils::readHBHeader(): Improperly formatted H/B file: ");
  /*  First line:   (A72,A8) */
  fin.getline(line,MAXLINE);
  TEUCHOS_TEST_FOR_EXCEPTION( std::sscanf(line,"%*s") < 0, std::runtime_error, errStr << "error buffering line.");
  (void)std::sscanf(line, "%72c%8[^\n]", Title.getRawPtr(), Key.getRawPtr());
  /*  Second line:  (5I14) or (4I14) */
  fin.getline(line,MAXLINE);
  TEUCHOS_TEST_FOR_EXCEPTION(std::sscanf(line,"%*s") < 0, std::runtime_error, errStr << "error buffering line.");
  if ( std::sscanf(line,"%14d%14d%14d%14d%14d",&Totcrd,&Ptrcrd,&Indcrd,&Valcrd,&Rhscrd) != 5 ) {
    Rhscrd = 0;
    TEUCHOS_TEST_FOR_EXCEPTION(std::sscanf(line,"%14d%14d%14d%14d",&Totcrd,&Ptrcrd,&Indcrd,&Valcrd) != 4, std::runtime_error, errStr << "error reading pointers (line 2)");
  }
  /*  Third line:   (A3, 11X, 4I14) */
  fin.getline(line,MAXLINE);
  TEUCHOS_TEST_FOR_EXCEPTION(std::sscanf(line,"%*s") < 0, std::runtime_error, errStr << "error buffering line.");
  TEUCHOS_TEST_FOR_EXCEPTION(std::sscanf(line, "%3c%14i%14i%14i%14i", Type.getRawPtr(),&Nrow,&Ncol,&Nnzero,&Neltvl) != 5 , std::runtime_error, errStr << "error reading matrix meta-data (line 3)");
  std::transform(Type.begin(), Type.end(), Type.begin(), static_cast < int(*)(int) > (std::toupper));
  /*  Fourth line:  */
  fin.getline(line,MAXLINE);
  TEUCHOS_TEST_FOR_EXCEPTION(std::sscanf(line,"%*s") < 0, std::runtime_error, errStr << "error buffering line.");
  if (Rhscrd != 0) {
    TEUCHOS_TEST_FOR_EXCEPTION(std::sscanf(line,"%16c%16c%20c%20c",Ptrfmt.getRawPtr(),Indfmt.getRawPtr(),Valfmt.getRawPtr(),Rhsfmt.getRawPtr()) != 4, std::runtime_error, errStr << "error reading formats (line 4)");
  }
  else {
    TEUCHOS_TEST_FOR_EXCEPTION(std::sscanf(line,"%16c%16c%20c",Ptrfmt.getRawPtr(),Indfmt.getRawPtr(),Valfmt.getRawPtr()) != 3,                        std::runtime_error, errStr << "error reading formats (line 4)");
  }
  /*  (Optional) Fifth line: */
  if (Rhscrd != 0 ) { 
    Rhstype.resize(3 + 1,'\0');
    fin.getline(line,MAXLINE);
    TEUCHOS_TEST_FOR_EXCEPTION(std::sscanf(line,"%*s") < 0, std::runtime_error, errStr << "error buffering line.");
    TEUCHOS_TEST_FOR_EXCEPTION(std::sscanf(line,"%3c%14d%14d", Rhstype.getRawPtr(), &Nrhs, &Nrhsix) != 3, std::runtime_error, errStr << "error reading right-hand-side meta-data (line 5)");
  }
}