Provides platform and dependency checks. More...

#include <version>

Include dependency graph for platform.hpp:

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Macros
#define	SEQAN3_COMPILER_IS_GCC 0
	Whether the current compiler is GCC.
#define	SEQAN3_DEPRECATED_340 [[deprecated("This will be removed in SeqAn-3.4.0; please see the documentation.")]]
	Deprecation message for deprecated header.
#define	SEQAN3_DISABLE_COMPILER_CHECK
	This disables the warning you would get if your compiler is not known to work.
#define	SEQAN3_DISABLE_LEGACY_STD_DIAGNOSTIC
	This disables the warning you would get if -D_GLIBCXX_USE_CXX11_ABI=0 is set.
#define	SEQAN3_HAS_BZIP2 0
	Whether BZIP2 support is available or not.
#define	SEQAN3_HAS_CEREAL 0
	Whether CEREAL support is available or not.
#define	SEQAN3_HAS_ZLIB 0
	Whether ZLIB support is available or not.
#define	SEQAN3_PRAGMA(non_string_literal)
	_Pragma requires a string-literal and # makes it a string
#define	SEQAN3_WORKAROUND_GCC_NO_CXX11_ABI 0
	This is needed to support CentOS 7 or RHEL 7; Newer CentOS's include a more modern default-gcc version making this macro obsolete.
#define	SEQAN3_WORKAROUND_LITERAL inline
	Our char literals returning std::vector should be constexpr if constexpr std::vector is supported.
#define	SEQAN3_WORKAROUND_VIEW_PERFORMANCE 1
	Performance of views, especially filter and join is currently bad, especially in I/O.
Workaround for bogus memcopy/memmove warnings on GCC
#define	SEQAN3_WORKAROUND_GCC_BOGUS_MEMCPY 0
	Indicates whether the workaround is active. 1 for GCC, 0 for other compilers.
#define	SEQAN3_WORKAROUND_GCC_BOGUS_MEMCPY_START(...)
	Denotes the start of a block where diagnostics are ignored.
#define	SEQAN3_WORKAROUND_GCC_BOGUS_MEMCPY_STOP
	Denotes the end of a block where diagnostics are ignored.

Detailed Description

Provides platform and dependency checks.

Author: Hannes Hauswedell <hannes.hauswedell AT fu-berlin.de>

Macro Definition Documentation

◆ SEQAN3_DEPRECATED_340

#define SEQAN3_DEPRECATED_340 [[deprecated("This will be removed in SeqAn-3.4.0; please see the documentation.")]]

Deprecation message for deprecated header.

Deprecation message for SeqAn 3.4.0 release.

◆ SEQAN3_PRAGMA

#define SEQAN3_PRAGMA ( non_string_literal )

Value:

_Pragma(#non_string_literal)

_Pragma requires a string-literal and # makes it a string

◆ SEQAN3_WORKAROUND_GCC_BOGUS_MEMCPY_START

#define SEQAN3_WORKAROUND_GCC_BOGUS_MEMCPY_START ( ... )

Denotes the start of a block where diagnostics are ignored.

If SEQAN3_WORKAROUND_GCC_BOGUS_MEMCPY is 0, this macro has no effect. Otherwise, the macro takes one or two arguments and will expand to a preprocessor directive equivalent to:

Input

// The macro accepts one or two arguments.

SEQAN3_WORKAROUND_GCC_BOGUS_MEMCPY_START(-Wrestrict, -Warray-bounds)

SEQAN3_WORKAROUND_GCC_BOGUS_MEMCPY_START

#define SEQAN3_WORKAROUND_GCC_BOGUS_MEMCPY_START(...)

Denotes the start of a block where diagnostics are ignored.

Definition platform.hpp:268

Output

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wrestrict"
#pragma GCC diagnostic ignored "-Warray-bounds"

◆ SEQAN3_WORKAROUND_GCC_BOGUS_MEMCPY_STOP

#define SEQAN3_WORKAROUND_GCC_BOGUS_MEMCPY_STOP

Denotes the end of a block where diagnostics are ignored.

If SEQAN3_WORKAROUND_GCC_BOGUS_MEMCPY is 0, this macro has no effect. Otherwise, the macro will expand to a preprocessor directive equivalent to:

#pragma GCC diagnostic pop

◆ SEQAN3_WORKAROUND_GCC_NO_CXX11_ABI

#define SEQAN3_WORKAROUND_GCC_NO_CXX11_ABI 0

This is needed to support CentOS 7 or RHEL 7; Newer CentOS's include a more modern default-gcc version making this macro obsolete.

In GCC 5 there was a bigger ABI change and modern systems compile with dual ABI, but some enterprise systems (those where gcc 4 is the standard compiler) don't support dual ABI. This has the effect that even community builds of gcc are build with –disable-libstdcxx-dual-abi. Only building the compiler yourself would solve this problem.

See also: https://github.com/seqan/seqan3/issues/2244; https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html

◆ SEQAN3_WORKAROUND_LITERAL

#define SEQAN3_WORKAROUND_LITERAL inline

Our char literals returning std::vector should be constexpr if constexpr std::vector is supported.

The _GLIBCXX_DEBUG statement is a workaround for a libstdc++ bug

See also: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104748; https://github.com/seqan/seqan3/issues/3221; https://godbolt.org/z/159n8xrdo

Macros