C++ attribute: optimize_for_synchronized (TM TS)
From cppreference.com
< cpp | language | attributes
C++
Feature test macros (C++20)
Concepts library (C++20)
Metaprogramming library (C++11)
Ranges library (C++20)
Filesystem library (C++17)
Concurrency support library (C++11)
Execution control library (C++26)
C++ language
General topics
Conditional execution statements
Iteration statements (loops)
Jump statements
Dynamic exception specifications (until C++17*)
noexcept
specifier (C++11) Exceptions
Namespaces
Types
Specifiers
User-defined (C++11)
Utilities
Attributes (C++11)
Types
Type alias declaration (C++11)
Casts
Memory allocation
Class-specific function properties
Special member functions
Miscellaneous
Declarations
Overview
Specifiers
(C++11)
(C++20)
(C++20)
Translation-unit-local (C++20)
(C++11)
(C++11)
(C++11)
Pack indexing specifier (C++26)
Attributes (C++11)
Declarators
Block declarations
→Structured binding declaration (C++17)
Alias declaration (C++11)
static_assert declaration (C++11)
Opaque enum declaration (C++11)
Other declarations
Explicit template instantiation (C++11)
Attribute declaration (C++11)
Attributes
(C++23)
(C++11)(until C++26)
(C++14)
(C++17)
(C++26)
(C++20)
(C++17)
(C++17)
(C++11)
(C++20)
optimize_for_synchronized
(TM TS)
(C++20)
Indicates that the function definition should be optimized for invocation from a synchronized statement.
Contents
[edit] Syntax
[[optimize_for_synchronized]]
[edit] Explanation
Applies to the name being declared in a function declaration, which must be the first declaration of the function.
Indicates that the function definition should be optimized for invocation from a synchronized statement. In particular, it avoids serializing synchronized blocks that make a call to a function that is transaction-safe for the majority of calls, but not for all calls.
[edit] Example
This section is incomplete
Reason: no example
Reason: no example
[edit] References
- Transactional Memory TS (ISO/IEC TS 19841:2015):
- 7.6.6 Attribute for optimization in synchronized blocks [dcl.attr.sync]