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Lowered std requirement to C++11

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This commit is contained in:
ruben
2020-06-13 00:40:05 +01:00
parent 3407d818f6
commit 591671bd8d
118 changed files with 2156 additions and 1810 deletions
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25
example/query_async_callbacks.cpp
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@@ -47,11 +47,18 @@ using boost::mysql::owning_row;
* of the handler signatures.
*/
#define ASSERT(expr) \
if (!(expr)) \
{ \
std::cerr << "Assertion failed: " #expr << std::endl; \
exit(1); \
}
void print_employee(const boost::mysql::row& employee)
{
std::cout << "Employee '"
<< employee.values()[0] << " " // first_name (type std::string_view)
<< employee.values()[1] << "' earns " // last_name (type std::string_view)
<< employee.values()[0] << " " // first_name (type boost::string_view)
<< employee.values()[1] << "' earns " // last_name (type boost::string_view)
<< employee.values()[2] << " dollars yearly\n"; // salary (type double)
}
@@ -114,9 +121,9 @@ public:
{
const char* sql = "UPDATE employee SET salary = 15000 WHERE last_name = 'Slacker'";
connection.async_query(sql, additional_info,
[this](error_code err, [[maybe_unused]] tcp_resultset&& result) {
[this](error_code err, tcp_resultset&& result) {
die_on_error(err, additional_info);
assert(result.fields().size() == 0);
ASSERT(result.fields().size() == 0);
query_intern();
});
}
@@ -129,9 +136,9 @@ public:
resultset = std::move(result);
resultset.async_fetch_all(additional_info, [this](error_code err, const std::vector<owning_row>& rows) {
die_on_error(err, additional_info);
assert(rows.size() == 1);
[[maybe_unused]] auto salary = rows[0].values()[0].get<double>();
assert(salary == 15000);
ASSERT(rows.size() == 1);
auto salary = rows[0].values()[0].get<double>();
ASSERT(salary == 15000);
close();
});
});
@@ -145,7 +152,7 @@ public:
});
}
auto& context() { return ctx; }
void run() { ctx.run(); }
};
void main_impl(int argc, char** argv)
@@ -158,7 +165,7 @@ void main_impl(int argc, char** argv)
application app (argv[1], argv[2]);
app.start(); // starts the async chain
app.context().run(); // run the asio::io_context until the async chain finishes
app.run(); // run the asio::io_context until the async chain finishes
}
int main(int argc, char** argv)