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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/soci-postgresql.h"
 #include "soci-cstrtoi.h"
 #include <cstdio>
 #include <cstring>
 #include <ctime>
 #include <vector>
 
 namespace soci
 {
 
 namespace details
 {
 
 namespace postgresql
 {
 
 // helper function for parsing boolean values as integers, throws if parsing
 // fails.
 template <typename T>
 T parse_as_boolean_or_throw(char const * buf)
 {
     // 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.");
     }
 }
 
 template <typename T>
 T string_to_integer(char const * buf)
 {
     T result;
     if (!cstring_to_integer(result, buf))
         result = parse_as_boolean_or_throw<T>(buf);
 
     return result;
 }
 
 // helper function for parsing unsigned integers
 template <typename T>
 T string_to_unsigned_integer(char const * buf)
 {
     T result;
     if (!cstring_to_unsigned(result, buf))
         result = parse_as_boolean_or_throw<T>(buf);
 
     return result;
 }
 
 // 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