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/*

FUNCTION

<>---macro for debugging diagnostics

INDEX

	assert

ANSI_SYNOPSIS

	#include 

	void assert(int <[expression]>);

DESCRIPTION

	Use this macro to embed debuggging diagnostic statements in

	your programs.  The argument <[expression]> should be an

	expression which evaluates to true (nonzero) when your program

	is working as you intended.

	When <[expression]> evaluates to false (zero), <>

	calls <>, after first printing a message showing what

	failed and where:

. Assertion failed: <[expression]>, file <[filename]>, line <[lineno]>, function: <[func]>

	If the name of the current function is not known (for example,

	when using a C89 compiler that does not understand __func__),

	the function location is omitted.

	The macro is defined to permit you to turn off all uses of

	<> at compile time by defining <> as a

	preprocessor variable.   If you do this, the <> macro

	expands to

. (void(0))

RETURNS

	<> does not return a value.

PORTABILITY

	The <> macro is required by ANSI, as is the behavior

	when <> is defined.

Supporting OS subroutines required (only if enabled): <>, <>,

<>, <>, <>, <>, <>, <>, <>.

*/

#include 

#include 

#include 

#ifndef HAVE_ASSERT_FUNC

/* func can be NULL, in which case no function information is given.  */

void

_DEFUN (__assert_func, (file, line, func, failedexpr),

	const char *file _AND

	int line _AND

	const char *func _AND

	const char *failedexpr)

{

  fiprintf(stderr,

	   "assertion \"%s\" failed: file \"%s\", line %d%s%s\n",

	   failedexpr, file, line,

	   func ? ", function: " : "", func ? func : "");

  abort();

  /* NOTREACHED */

}

#endif /* HAVE_ASSERT_FUNC */

void

_DEFUN (__assert, (file, line, failedexpr),

	const char *file _AND

	int line _AND

	const char *failedexpr)

{

   __assert_func (file, line, NULL, failedexpr);

  /* NOTREACHED */

}