builtin_functions.c

/*\
||| This file a part of Pike, and is copyright by Fredrik Hubinette
||| Pike is distributed as GPL (General Public License)
||| See the files COPYING and DISCLAIMER for more information.
\*/
/**/
#include "global.h"
RCSID("$Id: builtin_functions.c,v 1.387 2001/06/29 10:47:37 grubba Exp $");
#include "interpret.h"
#include "svalue.h"
#include "pike_macros.h"
#include "object.h"
#include "program.h"
#include "array.h"
#include "pike_error.h"
#include "constants.h"
#include "mapping.h"
#include "stralloc.h"
#include "multiset.h"
#include "pike_types.h"
#include "rusage.h"
#include "operators.h"
#include "fsort.h"
#include "callback.h"
#include "gc.h"
#include "backend.h"
#include "main.h"
#include "pike_memory.h"
#include "threads.h"
#include "time_stuff.h"
#include "version.h"
#include "encode.h"
#include <math.h>
#include <ctype.h>
#include "module_support.h"
#include "module.h"
#include "opcodes.h"
#include "cyclic.h"
#include "signal_handler.h"
#include "security.h"
#include "builtin_functions.h"
#include "bignum.h"

#ifdef HAVE_POLL
#ifdef HAVE_POLL_H
#include <poll.h>
#endif /* HAVE_POLL_H */

#ifdef HAVE_SYS_POLL_H
#include <sys/poll.h>
#endif /* HAVE_SYS_POLL_H */
#endif /* HAVE_POLL */

#ifdef HAVE_CRYPT_H
#include <crypt.h>
#endif

/* #define DIFF_DEBUG */
/* #define ENABLE_DYN_DIFF */

/*! @decl int equal(mixed a, mixed b)
 *!
 *!   This function checks if the values @[a] and @[b] are equal.
 *!
 *!   For all types but arrays, multisets and mappings, this operation is
 *!   the same as doing @code{@[a] == @[b]@}.
 *!   For arrays, mappings and multisets however, their contents are checked
 *!   recursively, and if all their contents are the same and in the same
 *!   place, they are considered equal.
 *!