qsort.c File Reference

#include <stdlib.h>
#include <string.h>
#include <strings.h>

Include dependency graph for qsort.c:

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

Macros
#define	min(a, b)   (a) < (b) ? a : b
#define	swapcode(TYPE, parmi, parmj, n)
#define	SWAPINIT(a, es)   swaptype = (uintptr_t)a % sizeof(long) || es % sizeof(long) ? 2 : es == sizeof(long) ? 0 : 1;
#define	swap(a, b)   swapfunc(a, b, (size_t)es, (size_t)swaptype)
#define	vecswap(a, b, n)
#define	CMP(t, x, y)   (cmp((x), (y)))
#define	DEPTH(x)   (2 * (fls((int)(x)) - 1))
#define	thunk   NULL

Typedefs
typedef int	cmp_t(const void *, const void *)

Functions
static char *	med3 (char *a, char *b, char *c, cmp_t *cmd, void *thunk) __attribute__((always_inline))
static void	swapfunc (char *a, char *b, size_t n, size_t swaptype) __attribute__((always_inline))
static char *	med3 (char *a, char *b, char *c, cmp_t *cmp, void *thunk __attribute__((unused)))
static void	_qsort (void *a, size_t n, size_t es, #define thunk cmp_t *cmp, int depth_limit)
void	qsort (void *a, size_t n, size_t es, cmp_t *cmp)

Macro Definition Documentation

CMP

#define CMP	(		t,
			x,
			y
	)		(cmp((x), (y)))

DEPTH

#define DEPTH

(

x

)

(2 * (fls((int)(x)) - 1))

min

#define min	(		a,
			b
	)		(a) < (b) ? a : b

swap

#define swap	(		a,
			b
	)		swapfunc(a, b, (size_t)es, (size_t)swaptype)

swapcode

#define swapcode	(		TYPE,
			parmi,
			parmj,
			n
	)

Value:

{                                   \
        size_t i = (n) / sizeof(TYPE);  \
        TYPE* pi = (TYPE*)(parmi);      \
        TYPE* pj = (TYPE*)(parmj);      \
        do                              \
        {                               \
            TYPE t = *pi;               \
            *pi++ = *pj;                \
            *pj++ = t;                  \
        } while(--i > 0);               \
    }

SWAPINIT

#define SWAPINIT	(		a,
			es
	)		swaptype = (uintptr_t)a % sizeof(long) || es % sizeof(long) ? 2 : es == sizeof(long) ? 0 : 1;

thunk

#define thunk   NULL

vecswap

#define vecswap	(		a,
			b,
			n
	)

Value:

if((n) > 0)          \
    swapfunc(a, b, n, swaptype ? (size_t)swaptype : 1)

Typedef Documentation

cmp_t

typedef int cmp_t(const void *, const void *)

Function Documentation

_qsort()

static void _qsort ( void *  a, size_t  n, size_t  es, #define thunk cmp_t *  cmp, int  depth_limit  )

static

References a, CMP, cmp(), heapsort(), heapsort_r(), med3(), min, n, pa, r, swap, SWAPINIT, thunk, and vecswap.

Referenced by qsort().

med3() [1/2]

static char* med3 ( char *  a, char *  b, char *  c, cmp_t *  cmd, void *  thunk  )

inlinestatic

Referenced by _qsort().

med3() [2/2]

static char* med3 ( char *  a, char *  b, char *  c, cmp_t *  cmp, void *thunk   __attribute__(unused)  )

inlinestatic

References a, b, CMP, and thunk.

qsort()

void qsort	(	void *	a,
		size_t	n,
		size_t	es,
		cmp_t *	cmp
	)

References _qsort(), a, cmp(), DEPTH, I_AM_QSORT_R, n, and thunk.

Referenced by char_test(), qsort_int_test(), qsort_string_test(), and uint64_test().

swapfunc()

static void swapfunc ( char *  a, char *  b, size_t  n, size_t  swaptype  )

inlinestatic

References a, b, n, swapcode, and t.