feature_flags.h File Reference

Unified feature flags header for common_system. More...

#include "feature_flags_core.h"
#include "feature_detection.h"
#include "feature_system_deps.h"

Include dependency graph for feature_flags.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Macros
#define	COMMON_HAS_SOURCE_LOCATION   KCENON_HAS_SOURCE_LOCATION
	Legacy alias definitions for backward compatibility.
#define	KCENON_HAS_STD_SOURCE_LOCATION   KCENON_HAS_SOURCE_LOCATION

Detailed Description

Unified feature flags header for common_system.

This is the main entry point for all feature detection and integration flags in the common_system library. Include this header to get access to all KCENON_* feature macros.

Header organization:

• feature_flags_core.h : Preprocessor helpers, compiler/platform detection
• feature_detection.h : C++ standard library feature detection
• feature_system_deps.h : System module integration flags
• feature_flags.h : This file - aggregates all and provides legacy aliases

Usage:

#include <kcenon/common/config/feature_flags.h>
 
#if KCENON_HAS_SOURCE_LOCATION
    #include <source_location>
    using location_type = std::source_location;
#else
    using location_type = kcenon::common::source_location;
#endif
 
#if KCENON_HAS_JTHREAD
    std::jthread worker([](std::stop_token st) { ... });
#else
    std::thread worker([]{ ... });
#endif

See also

feature_flags_core.h for preprocessor helpers

feature_detection.h for C++ feature detection

feature_system_deps.h for system integration flags

Definition in file feature_flags.h.

Macro Definition Documentation

COMMON_HAS_SOURCE_LOCATION

#define COMMON_HAS_SOURCE_LOCATION   KCENON_HAS_SOURCE_LOCATION

Legacy alias definitions for backward compatibility.

These aliases map old macro names to the new KCENON_* convention. They are only defined if:

1. KCENON_ENABLE_LEGACY_ALIASES is enabled (default: 1)
2. The legacy macro is not already explicitly defined

This ensures that explicit user definitions (including explicit 0 values) are respected and not overwritten.

Note

Legacy aliases are planned for deprecation in v0.4.0 and removal in v1.0.0. Migrate to KCENON_* macros.

Definition at line 75 of file feature_flags.h.

KCENON_HAS_STD_SOURCE_LOCATION

#define KCENON_HAS_STD_SOURCE_LOCATION   KCENON_HAS_SOURCE_LOCATION

Definition at line 81 of file feature_flags.h.