/usr/include/soci/postgresql/common.h is in libsoci-dev 3.2.3-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Copyright (C) 2004-2008 Maciej Sobczak, Stephen Hutton
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef SOCI_POSTGRESQL_COMMON_H_INCLUDED
#define SOCI_POSTGRESQL_COMMON_H_INCLUDED
#include "soci-postgresql.h"
#include <limits>
#include <cstdio>
#include <cstring>
#include <ctime>
#include <vector>
namespace soci
{
namespace details
{
namespace postgresql
{
// helper function for parsing integers
template <typename T>
T string_to_integer(char const * buf)
{
long long t(0);
int n(0);
int const converted = std::sscanf(buf, "%" LL_FMT_FLAGS "d%n", &t, &n);
if (converted == 1 && static_cast<std::size_t>(n) == std::strlen(buf))
{
// successfully converted to long long
// and no other characters were found in the buffer
const T max = (std::numeric_limits<T>::max)();
const T min = (std::numeric_limits<T>::min)();
if (t <= static_cast<long long>(max) &&
t >= static_cast<long long>(min))
{
return static_cast<T>(t);
}
else
{
// value out of target range
throw soci_error("Cannot convert data.");
}
}
else
{
// try additional conversion from boolean
// (PostgreSQL gives 't' or 'f' for boolean results)
if (buf[0] == 't' && buf[1] == '\0')
{
return static_cast<T>(1);
}
else if (buf[0] == 'f' && buf[1] == '\0')
{
return static_cast<T>(0);
}
else
{
throw soci_error("Cannot convert data.");
}
}
}
// helper function for parsing unsigned integers
template <typename T>
T string_to_unsigned_integer(char const * buf)
{
unsigned long long t(0);
int n(0);
int const converted = std::sscanf(buf, "%" LL_FMT_FLAGS "u%n", &t, &n);
if (converted == 1 && static_cast<std::size_t>(n) == std::strlen(buf))
{
// successfully converted to unsigned long long
// and no other characters were found in the buffer
const T max = (std::numeric_limits<T>::max)();
if (t <= static_cast<unsigned long long>(max))
{
return static_cast<T>(t);
}
else
{
// value out of target range
throw soci_error("Cannot convert data.");
}
}
else
{
// try additional conversion from boolean
// (PostgreSQL gives 't' or 'f' for boolean results)
if (buf[0] == 't' && buf[1] == '\0')
{
return static_cast<T>(1);
}
else if (buf[0] == 'f' && buf[1] == '\0')
{
return static_cast<T>(0);
}
else
{
throw soci_error("Cannot convert data.");
}
}
}
// helper function for parsing doubles
double string_to_double(char const * buf);
// helper function for parsing datetime values
void parse_std_tm(char const * buf, std::tm & t);
// helper for vector operations
template <typename T>
std::size_t get_vector_size(void * p)
{
std::vector<T> * v = static_cast<std::vector<T> *>(p);
return v->size();
}
} // namespace postgresql
} // namespace details
} // namespace soci
#endif // SOCI_POSTGRESQL_COMMON_H_INCLUDED
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