miscellanies. More...

#include <zeda/zeda_defs.h>
#include <zeda/zeda_errmsg.h>
#include <assert.h>

Include dependency graph for zeda_misc.h:

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

Macros
#define	zAssert(func, expr)

#define	_zMax(x, y) ( (x)>=(y) ? (x) : (y) )

#define	_zMin(x, y) ( (x)<=(y) ? (x) : (y) )

#define	_zLimit(x, l, u) ( (x)<=(l) ? (l) : ( (x)>=(u) ? (u) : (x) ) )

#define	zSwap(type, a, b)
	swap values of two data a and b. type the data type of a and b. More...

#define	zAlloc(t, n) ( (n) == 0 ? NULL : (t *)calloc( (n), sizeof(t) ) )

#define	zAllocZero(t, n) ( (n) == 0 ? NULL : (t *)calloc( (n), sizeof(t) ) )

#define	zFree(m) do{ if( (m) ){ free( m ); (m) = NULL; } } while(0)

#define	zCopy(t, s, d) ( (t *)memcpy( d, s, sizeof(t) ) )

#define	zRealloc(m, t, n) (t )realloc( (void )m, sizeof(t)*(n) )

#define	eprintf(fmt, ...) fprintf( stderr, fmt, ##__VA_ARGS__ )
	formatted output to stderr. More...

#define	zEchoOn() ( __zeda_echo = true )

#define	zEchoOff() ( __zeda_echo = false )

#define	ZECHO(msg, ...) ( __zeda_echo ? eprintf( msg " (%s).\n", ##__VA_ARGS__, __FUNCTION__ ) : 0 )

#define	ZRUNERROR(msg, ...) ZECHO( "run-time error: " msg, ##__VA_ARGS__ )

#define	ZRUNWARN(msg, ...) ZECHO( "warning: " msg, ##__VA_ARGS__ )

#define	ZOPENERROR(m) ZRUNERROR( "cannot open file: %s", (m) )

#define	ZALLOCERROR() ZRUNERROR( "cannot allocate memory" )

#define	itoa_zerofill(v, s, b) itoa_fill( (v), (s), '0', (b) )
	convert an integer to a string with blank filled by a charactor-zero. More...

Functions
double	zMax (double x, double y)

double	zMin (double x, double y)

double	zLimit (double x, double l, double u)

double	zBound (double x, double b1, double b2)
	return a saturated value of x with two boundaries b1 and b2, where the magnitude relation between b1 and b2 does not matter. More...

void *	zClone (void *src, size_t size)
	clone a memory space. More...

size_t	zFileSize (FILE *fp)
	count the size of a file. More...

int	fpeek (FILE *fp)
	peek charactor. More...

int	atox_c (char c)
	convert a hexadecimal note to a value. More...

int	atox (char *str)
	convert hexadecimal string to value. More...

char *	itoa (int val, char *buf)
	convert an integer to a string. More...

char *	ftoa (double val, char *buf)
	convert a d-float value to a string. More...

char *	itoa_fill (int val, int size, char pat, char *buf)
	convert an integer to a string with a blank filled by a charactor. More...

char *	itoa_ordinal (int val, char *buf, size_t size)
	convert an integer number to a string that represents an ordinal. More...

Detailed Description

miscellanies.

Author: Zhidao

Macro Definition Documentation

◆ zAssert

#define zAssert	(	func,
		expr
	)

Value:

do{\
  printf( "%s ... ", #func );\
  assert( expr );\
  printf( "OK\n" );\
} while(0)\

asserts expr and echo a message that func works fine; if not, it aborts.

◆ _zMax

#define _zMax	(	x,
		y
	)	( (x)>=(y) ? (x) : (y) )

◆ _zMin

#define _zMin	(	x,
		y
	)	( (x)<=(y) ? (x) : (y) )

◆ _zLimit

#define _zLimit	(	x,
		l,
		u
	)	( (x)<=(l) ? (l) : ( (x)>=(u) ? (u) : (x) ) )

◆ zSwap

#define zSwap	(	type,
		a,
		b
	)

Value:

do{\
  type __swap_tmp;\
  __swap_tmp = a;\
  a = b;\
  b = __swap_tmp;\
} while(0)

swap values of two data a and b. type the data type of a and b.

Function Documentation

◆ zMax()

double zMax	(	double	x,
		double	y
	)

◆ zMin()

double zMin	(	double	x,
		double	y
	)

◆ zLimit()

double zLimit	(	double	x,
		double	l,
		double	u
	)

◆ zBound()

double zBound	(	double	x,
		double	b1,
		double	b2
	)

return a saturated value of x with two boundaries b1 and b2, where the magnitude relation between b1 and b2 does not matter.

◆ zFileSize()

size_t zFileSize ( FILE * fp )

count the size of a file.

◆ fpeek()

int fpeek ( FILE * fp )

peek charactor.

fpeek() picks up a charactor from the current position of the file pointed by fp without proceeding the pointer of fp.

Returns: the charactor picked up.

Macros

Functions