#include <sys/param.h>
#include <unistd.h>
#include <climits>
#include <jau/test/catch2_ext.hpp>
#include <jau/basic_types.hpp>
#include <cstring>

Include dependency graph for test_os_posix_libc_macros.cpp:

Macros
#define	COND_CODE(macro, code)

#define	MACRO_STRINGIFY(item) "" #item

#define	PRINT_COND(macro)

Functions
int	my_strcmp (const char , const char )

void	print_libc ()

void	print_unix_std ()

int	printf (const char *format,...)
	Operating Systems predefined macros. More...

static int	sizeof_time_t ()
	Resembling the GNU/Linux bits/types.h, documenting whether time_t is 32-bit (arm-32) or 64-bit (arm-64, x86_64, ..). More...

static int	sizeof_tv_nsec ()
	Resembling the GNU/Linux bits/types.h, documenting whether tv_nsec of struct timespec is 32-bit (arm-32) or 64-bit (arm-64, x86_64, ..). More...

	TEST_CASE ("Standard C Library 01.01", "[libc]")

	TEST_CASE ("Unix StandardsTest 01.00", "[unix][posix]")

Macro Definition Documentation

◆ MACRO_STRINGIFY

#define MACRO_STRINGIFY ( item ) "" #item

Definition at line 68 of file test_os_posix_libc_macros.cpp.

◆ COND_CODE

#define COND_CODE	(	macro,
		code
	)

Value:

    do {                                                 \
        if (my_strcmp("" #macro, MACRO_STRINGIFY(macro))) { \
            (code);                                      \
        }                                                \
    } while (0)

Definition at line 69 of file test_os_posix_libc_macros.cpp.

◆ PRINT_COND

#define PRINT_COND ( macro )

Value:

    do {                                                 \
        if (my_strcmp("" #macro, MACRO_STRINGIFY(macro))) { \
            printf("- %s\t%s\n", #macro, MACRO_STRINGIFY(macro)); \
        } else {                                         \
            printf("- %s\t-\n", #macro);              \
        }                                                \
    } while (0)

Definition at line 76 of file test_os_posix_libc_macros.cpp.

Function Documentation

◆ printf()

int printf	(	const char *	format,
			...
	)

Operating Systems predefined macros.

BSD included from <sys/param.h> Unix standards require the existence macros in the <unistd.h> header file. GNU glibc

GLIBC macros have to be included from the <features.h> header file. Include <limits.h> header file instead, which included <features.h> on GLIBC (see e.g. paragraph 4/6 in ISO/IEC 9899:1999). glibc 1.3.4 Feature Test Macros _FILE_OFFSET_BITS

available if _POSIX_C_SOURCE >= 200112L
_FILE_OFFSET_BITS == 64 implies using all 64-bit file-function and -type variants on 32-bit platforms
_FILE_OFFSET_BITS == 64 has no effect on 64-bit platforms, already using the 64-bit variants
_FILE_OFFSET_BITS is favored over _LARGEFILE64_SOURCE

_TIME_BITS