mirror of
https://github.com/boostorg/openmethod.git
synced 2026-01-19 04:22:12 +00:00
46 lines
922 B
Plaintext
46 lines
922 B
Plaintext
|
|
## trace
|
|
|
|
### Synopsis
|
|
|
|
Defined in <boost/openmethod/policies/basic_policy.hpp>.
|
|
|
|
```c++
|
|
namespace boost::openmethod::policies {
|
|
|
|
struct trace : policy {};
|
|
|
|
}
|
|
```
|
|
|
|
---
|
|
|
|
### Description
|
|
|
|
`trace` is a policy used to write trace messages.
|
|
|
|
`initialize` can be directed to describe the classes and methods in a policy,
|
|
and how the dispatch tables are built, by including this policy in the policy,
|
|
and setting `trace_enabled` to `true`. The content and the format of the
|
|
description is not documented, beyond the guarantee that it provides an
|
|
exhaustive account of table construction, and may change between major, minor
|
|
and patch versions.
|
|
|
|
### Requirements
|
|
|
|
#### trace_enabled
|
|
|
|
```c++
|
|
static bool trace_enabled;
|
|
```
|
|
|
|
`true` if tracing is enabled, `false` otherwise.
|
|
|
|
#### trace_stream
|
|
|
|
```c++
|
|
static LightweightOutputStream trace_stream;
|
|
```
|
|
|
|
A static variable that satisfies the requirements of `LightweightOutputStream`.
|