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liblangtag Documentation | ![]() |
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#define LT_ALIGNED_TO (_x_, _y_) #define LT_ALIGNED_TO_POINTER (_x_) #define LT_BEGIN_DECLS #define LT_BREAKPOINT #define LT_DIR_SEPARATOR #define LT_DIR_SEPARATOR_S #define LT_END_DECLS #define LT_GNUC_NULL_TERMINATED #define LT_GNUC_PRINTF (format_idx, arg_idx) #define LT_INLINE_FUNC #define LT_LIKELY (_e_) #define LT_MAX #define LT_MIN #define LT_N_ELEMENTS (_x_) #define LT_PATH_MAX #define LT_SEARCHPATH_SEPARATOR #define LT_SEARCHPATH_SEPARATOR_S #define LT_STMT_END #define LT_STMT_START #define LT_UNLIKELY (_e_) #define inline typedef lt_bool_t; int (*lt_compare_func_t) (const lt_pointer_t v1
,const lt_pointer_t v2
); lt_pointer_t (*lt_copy_func_t) (lt_pointer_t data
); void (*lt_destroy_func_t) (lt_pointer_t data
); typedef lt_pointer_t; typedef ssize_t;
These macros provide more specialized features which are not needed so often by application programmers.
# define LT_BEGIN_DECLS extern "C" {
Used (along with LT_END_DECLS) to bracket header files. If the
compiler in use is a C++ compiler, adds extern "C"
around the header.
# define LT_END_DECLS }
Used (along with LT_BEGIN_DECLS) to bracket header files. If the
compiler in use is a C++ compiler, adds extern "C"
around the header.
#define LT_GNUC_NULL_TERMINATED
Expands to the GNU C sentinel
function attribute
if the compiler is gcc, or "" if it isn't.
This function attribute only applies to variadic functions and instructs
the compiler to check that the argument list is terminated with an
explicit NULL
.
See the GNU C documentation for details.
#define LT_GNUC_PRINTF(format_idx, arg_idx)
Expands to the GNU C format
function attribute if
the compiler is gcc. This is used for declaring
functions which take a variable number of arguments, with the same
syntax as
.
It allows the compiler to type-check the arguments passed to the function.
See the GNU C documentation for details.
printf()
|
the index of the argument corresponding to the format string. (The arguments are numberered from 1). |
|
the index of the first of the format arguments. |
# define LT_INLINE_FUNC static __inline __attribute__ ((unused))
This macro is used to export function prototypes so they can be linked with an external version when no inlining is performed.
# define LT_LIKELY(_e_) (__builtin_expect (_LT_BOOLEAN_EXPR (_e_), 1))
Hints the compiler that the expression is likely to evaluate to a true value. The compiler may use this information for optimizations.
|
the expression |
Returns : |
the value of expr . |
#define LT_N_ELEMENTS(_x_) (sizeof (_x_) / sizeof ((_x_)[0]))
Determines the number of elements in an array. The array must be declared so the compiler knows its size at compile-time; this macro will not work on an array allocated on the heap, only static arrays or arrays on the stack.
|
the array |
Returns : |
the number of elements. |
# define LT_STMT_END while (0)
Used within multi-statement macros so that they can be used in places where only on statement is expected by the compiler.
# define LT_STMT_START do
Used within multi-statement macros so that they can be used in places where only on statement is expected by the compiler.
# define LT_UNLIKELY(_e_) (__builtin_expect (_LT_BOOLEAN_EXPR (_e_), 0))
Hints the compiler that the expression is unlikely to evaluate to a true value. The compiler may use this information for optimizations.
|
the expression |
Returns : |
the value of expr . |