Hello All,
This maybe a brain-dead C++ programmer error (I am a bit rusty :-/) but I have
been working the last day on a C++ compile error for the last day or so and
hoping someone else has ran and solved a similar situation. The error I am
getting is: "error: ‘into’ was not declared in this scope" and involves the
into clause of a statement prepare call. I can get a similar construct to work
fine in a simple stand-alone program but not in the real code I am working on.
I hope I can explain this well enough.
The code I can not get to work is this:
DbSqliteDirectory::DbSqliteDirectory(std::string path)
{
m_db_session = openDb(path);
// Begin TEST!! JRD
m_prep_get_version = new soci::statement((m_db_session->prepare <<
"select version from version", into(m_version_rec)));
m_prep_get_version->execute(false);
while (m_prep_get_version->fetch())
{
std::cout << "Version: " << m_version_rec << std::endl;
}
m_prep_get_version is defined in a class which DbSqliteDirectory is a subclass
as:
soci::statement* m_prep_get_version;
m_db_session is also defined in a class which DbSqliteDirectory is a subclass
as:
soci::session* m_db_session;
BTW this session works when I use non-prepared statements with rowset and row.
m_version_rec is also defined in a class which DbSqliteDirectory is a subclass
as:
std::string m_version_rec;
BTW I have tried using local method variables for the into() target but get the
same error.
Now I have slowly built up a stand-alone program that simulates what I want to
do and it WORKS. See the attached file. Notice this uses the same class
hierarchy, use of pointers, protected class variables, and include files as the
real-code.
I am using the 5105f0f version of Soci.
I am totally lost on this one. I am hoping someone has run into a similar
situation and has an easy fix :-).
Thanks for any help (I hope I am not being too much of a pain :-( ).
John
::::::::::::::
testPrep6A.h
::::::::::::::
#include <soci.h>
#include <statement.h>
#include <sqlite3/common.h>
#include <sqlite3/soci-sqlite3.h>
#include <iostream>
#include <istream>
#include <ostream>
#include <string>
#include <exception>
using namespace soci;
using namespace std;
class Db
{
public:
Db();
protected:
session* sql;
statement* prepStatement;
string workString;
};
::::::::::::::
testPrep6B.h
::::::::::::::
#include "testPrep6A.h"
class Db2: public Db
{
public:
Db2();
};
::::::::::::::
testPrep6A.cpp
::::::::::::::
#include "testPrep6B.h"
Db::Db()
{
}
int main()
{
Db2 db2;
}
::::::::::::::
testPrep6B.cpp
::::::::::::::
#include "testPrep6B.h"
Db2::Db2()
{
sql = new session(sqlite3, "Directory.sqlite");
prepStatement = new statement((sql->prepare <<
"select version from version", into(workString)));
prepStatement->execute();
while (prepStatement->fetch())
{
cout << "Version: " << workString << endl;
}
}
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