error and warning messages

Macros
#define	eprintf(fmt, ...)   fprintf( stderr, fmt, ##__VA_ARGS__ )
	formatted output to stderr. More...
#define	zEchoOn()   ( __zeda_echo = true )
#define	zEchoOff()   ( __zeda_echo = false )
#define	ZRUNERROR(msg, ...)   ZECHO( "run-time error: " msg, ##__VA_ARGS__ )
#define	ZRUNWARN(msg, ...)   ZECHO( "warning: " msg, ##__VA_ARGS__ )
#define	ZECHO(msg, ...)   ( __zeda_echo ? eprintf( msg " (%s).\n", ##__VA_ARGS__, __FUNCTION__ ) : 0 )
#define	ZOPENERROR(m)   ZRUNERROR( "cannot open file: %s", (m) )
#define	ZALLOCERROR()   ZRUNERROR( "cannot allocate memory" )

Detailed Description

Macro Definition Documentation

eprintf

#define eprintf	(		fmt,
			...
	)		fprintf( stderr, fmt, ##__VA_ARGS__ )

formatted output to stderr.

eprintf() outputs a string formated by fmt to stderr (the standard error). The output format conforms to the printf() family specification.

zEchoOn

#define zEchoOn

(

)

( __zeda_echo = true )

make echo on.

zEchoOff

#define zEchoOff

(

)

( __zeda_echo = false )

make echo off.

ZRUNERROR

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

output a run-time error message.

ZRUNWARN

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

output a run-time warning message.

ZECHO

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

output a run-time echo.

ZOPENERROR

#define ZOPENERROR

(

m

)

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

output an error message when failing to open file m.

ZALLOCERROR

#define ZALLOCERROR

(

)

ZRUNERROR( "cannot allocate memory" )

output an error message whan failing to allocate memory.