strings/string_float.hpp

#ifndef STLPLUS_STRING_FLOAT
#define STLPLUS_STRING_FLOAT
////////////////////////////////////////////////////////////////////////////////

//   Author:    Andy Rushton
//   Copyright: (c) Southampton University 1999-2004
//              (c) Andy Rushton           2004 onwards
//   License:   BSD License, see ../docs/license.html

//   Convert a float/double to/from string

////////////////////////////////////////////////////////////////////////////////
#include "strings_fixes.hpp"
#include "format_types.hpp"
#include <string>
#include <stdexcept>

namespace stlplus
{

  ////////////////////////////////////////////////////////////////////////////////
  // convert a real type to string
  ////////////////////////////////////////////////////////////////////////////////

  // Only decimal radix is supported

  // The way in which the number is displayed is defined in radix_types.hpp
  // Using any other value for the display type causes std::invalid_argument to be thrown

  // exceptions: std::invalid_argument
  std::string float_to_string(float f,
                              real_display_t display = display_mixed,
                              unsigned width = 0,
                              unsigned precision = 6);

  // exceptions: std::invalid_argument
  std::string double_to_string(double f,
                               real_display_t display = display_mixed,
                               unsigned width = 0,
                               unsigned precision = 6);

  ////////////////////////////////////////////////////////////////////////////////
  // Convert a string to a floating-point type

  // exceptions: std::invalid_argument
  float string_to_float(const std::string& value);

  // exceptions: std::invalid_argument
  double string_to_double(const std::string& value);

  ////////////////////////////////////////////////////////////////////////////////

} // end namespace stlplus

#endif