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Add a 0 default value for template argument N

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This commit is contained in:
louiz’
2017-06-14 16:21:23 +02:00
parent 49bb28c623
commit 5834dd53f3
4 changed files with 18 additions and 18 deletions
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src/database/insert_query.hpp
+9 -9
View File
@@ -53,13 +53,13 @@ struct InsertQuery: public Query
{
auto statement = this->prepare(db);
{
this->bind_param<0>(columns, statement);
this->bind_param(columns, statement);
if (sqlite3_step(statement.get()) != SQLITE_DONE)
log_error("Failed to execute query: ", sqlite3_errmsg(db));
}
}
template <int N, typename... T>
template <int N=0, typename... T>
typename std::enable_if<N < sizeof...(T), void>::type
bind_param(const std::tuple<T...>& columns, Statement& statement)
{
@@ -69,7 +69,7 @@ struct InsertQuery: public Query
this->bind_param<N+1>(columns, statement);
}
template <int N, typename... T>
template <int N=0, typename... T>
typename std::enable_if<N == sizeof...(T), void>::type
bind_param(const std::tuple<T...>&, Statement&)
{}
@@ -78,11 +78,11 @@ struct InsertQuery: public Query
void insert_values(const std::tuple<T...>& columns)
{
this->body += "VALUES (";
this->insert_value<0>(columns);
this->insert_value(columns);
this->body += ")";
}
template <int N, typename... T>
template <int N=0, typename... T>
typename std::enable_if<N < sizeof...(T), void>::type
insert_value(const std::tuple<T...>& columns)
{
@@ -93,7 +93,7 @@ struct InsertQuery: public Query
add_param(*this, std::get<N>(columns));
this->insert_value<N+1>(columns);
}
template <int N, typename... T>
template <int N=0, typename... T>
typename std::enable_if<N == sizeof...(T), void>::type
insert_value(const std::tuple<T...>&)
{ }
@@ -102,11 +102,11 @@ struct InsertQuery: public Query
void insert_col_names(const std::tuple<T...>& columns)
{
this->body += " (";
this->insert_col_name<0>(columns);
this->insert_col_name(columns);
this->body += ")\n";
}
template <int N, typename... T>
template <int N=0, typename... T>
typename std::enable_if<N < sizeof...(T), void>::type
insert_col_name(const std::tuple<T...>& columns)
{
@@ -119,7 +119,7 @@ struct InsertQuery: public Query
this->insert_col_name<N+1>(columns);
}
template <int N, typename... T>
template <int N=0, typename... T>
typename std::enable_if<N == sizeof...(T), void>::type
insert_col_name(const std::tuple<T...>&)
{}
src/database/row.hpp
+3 -3
View File
@@ -23,7 +23,7 @@ update_id(std::tuple<T...>& columns, sqlite3* db)
column.value = static_cast<Id::real_type>(res);
}
template <std::size_t N, typename... T>
template <std::size_t N=0, typename... T>
typename std::enable_if<N < sizeof...(T), void>::type
update_autoincrement_id(std::tuple<T...>& columns, sqlite3* db)
{
@@ -32,7 +32,7 @@ update_autoincrement_id(std::tuple<T...>& columns, sqlite3* db)
update_autoincrement_id<N+1>(columns, db);
}
template <std::size_t N, typename... T>
template <std::size_t N=0, typename... T>
typename std::enable_if<N == sizeof...(T), void>::type
update_autoincrement_id(std::tuple<T...>&, sqlite3*)
{}
@@ -67,7 +67,7 @@ struct Row
query.execute(this->columns, db);
update_autoincrement_id<0>(this->columns, db);
update_autoincrement_id(this->columns, db);
}
std::tuple<T...> columns;
src/database/select_query.hpp
+3 -3
View File
@@ -53,11 +53,11 @@ struct SelectQuery: public Query
Query("SELECT"),
table_name(table_name)
{
this->insert_col_name<0>();
this->insert_col_name();
this->body += " from " + this->table_name;
}
template <std::size_t N>
template <std::size_t N=0>
typename std::enable_if<N < sizeof...(T), void>::type
insert_col_name()
{
@@ -71,7 +71,7 @@ struct SelectQuery: public Query
this->insert_col_name<N+1>();
}
template <std::size_t N>
template <std::size_t N=0>
typename std::enable_if<N == sizeof...(T), void>::type
insert_col_name()
{}
src/database/table.hpp
+3 -3
View File
@@ -26,7 +26,7 @@ class Table
std::string res{"CREATE TABLE IF NOT EXISTS "};
res += this->name;
res += " (\n";
this->add_column_create<0>(res);
this->add_column_create(res);
res += ")";
log_debug(res);
@@ -58,7 +58,7 @@ class Table
}
private:
template <std::size_t N>
template <std::size_t N=0>
typename std::enable_if<N < sizeof...(T), void>::type
add_column_create(std::string& str)
{
@@ -75,7 +75,7 @@ class Table
add_column_create<N+1>(str);
}
template <std::size_t N>
template <std::size_t N=0>
typename std::enable_if<N == sizeof...(T), void>::type
add_column_create(std::string&)
{ }