string2int.cpp

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/*******************************************************************\
 
Module:
 
Author: Michael Tautschnig, michael.tautschnig@cs.ox.ac.uk
 
\*******************************************************************/
 
#include "string2int.h"
 
#include <cstdlib>
#include <stdexcept>
 
#include "invariant.h"
 
unsigned safe_string2unsigned(const std::string &str, int base)
{
  auto converted = string2optional<unsigned>(str, base);
  CHECK_RETURN(converted.has_value());
  return *converted;
}
 
std::size_t safe_string2size_t(const std::string &str, int base)
{
  auto converted = string2optional<std::size_t>(str, base);
  CHECK_RETURN(converted.has_value());
  return *converted;
}
 
int unsafe_string2int(const std::string &str, int base)
{
  return narrow_cast<int>(std::strtoll(str.c_str(), nullptr, base));
}
 
unsigned unsafe_string2unsigned(const std::string &str, int base)
{
  return narrow_cast<unsigned>(std::strtoul(str.c_str(), nullptr, base));
}
 
std::size_t unsafe_string2size_t(const std::string &str, int base)
{
  return narrow_cast<std::size_t>(std::strtoull(str.c_str(), nullptr, base));
}
 
signed long long int unsafe_string2signedlonglong(
  const std::string &str,
  int base)
{
  return std::strtoll(str.c_str(), nullptr, false);
}
 
unsigned long long int unsafe_string2unsignedlonglong(
  const std::string &str,
  int base)
{
  return *string2optional<unsigned long long>(str, base);
}
 
std::optional<int> string2optional_int(const std::string &str, int base)
{
  return string2optional<int>(str, base);
}
 
std::optional<unsigned>
string2optional_unsigned(const std::string &str, int base)
{
  return string2optional<unsigned>(str, base);
}
 
std::optional<std::size_t>
string2optional_size_t(const std::string &str, int base)
{
  return string2optional<std::size_t>(str, base);
}