parameters to Ellipses in C++

Is 开发者_运维知识库it possible to pass parameters of different types in Ellipses(...)? I am writing a function to make the SQL query, where I want to add values to the Insert statement through Ellipse and my values are of different type.

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As a word of warning, don't be too clever with this. Not that I've suffered greatly for similar endeavors. :))

Sqlite has built in query builders, check those first. What they wont let you do is specify a table name, which is probably what your problem is.

boost::format is a good option for this. It's type safe and less likely to segfault on you like C's variadic arguments.

std::string statement = boost::str( 
    boost::format("SELECT tab.* FROM %1% as tab")
        % "my_table_name"
  );

EDIT:

Sqlite handles parameter binding on its own, you shouldn't need any variadic aruments for that.

The sqlite3_bind_* functions provide access.

You might use something like this:

const char *sql = "INSERT INTO tab (a,b) VALUES (?1,?2);";
// create statement
sqlite3_bind_int(stmt, 1, 43);
sqlite3_bind_int(stmt, 2, 40000);

These bind functions have return values which you must check, I'll leave that to you.

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It's possible. You'd need some mechanism for determining the number and types of the parameters (such as printf's format string).