Function template attr
boost::log::filters::attr
Synopsis
template<typename AttributeValueTypesT, typename CharT>
implementation_defined attr(const CharT * name);
Description
The function generates an attribute placeholder in filter expressions
Parameters: |
name |
Attribute name. Must point to a zero-terminated string, must not be NULL. |
|
Returns: |
An object that will, upon applying a corresponding operation to it, construct the filter. |