contrib/ncurses/include/mf_common.h

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  28
  29 /****************************************************************************
  30  *   Author:  Juergen Pfeifer, 1995,1997                                    *
  31  ****************************************************************************/
  32
  33 /* $Id: mf_common.h,v 0.24 2012/06/10 00:06:54 tom Exp $ */
  34
  35 /* Common internal header for menu and form library */
  36
  37 #ifndef MF_COMMON_H_incl
  38 #define MF_COMMON_H_incl 1
  39
  40 #include <ncurses_cfg.h>
  41 #include <curses.h>
  42
  43 #include <stdlib.h>
  44 #include <sys/types.h>
  45 #include <assert.h>
  46 #include <string.h>
  47 #include <ctype.h>
  48 #include <errno.h>
  49
  50 #if DECL_ERRNO
  51 extern int errno;
  52 #endif
  53
  54 /* in case of debug version we ignore the suppression of assertions */
  55 #ifdef TRACE
  56 #  ifdef NDEBUG
  57 #    undef NDEBUG
  58 #  endif
  59 #endif
  60
  61 #include <nc_alloc.h>
  62
  63 #if USE_RCS_IDS
  64 #define MODULE_ID(id) static const char Ident[] = id;
  65 #else
  66 #define MODULE_ID(id)           /*nothing */
  67 #endif
  68
  69 /* Maximum regular 8-bit character code */
  70 #define MAX_REGULAR_CHARACTER (0xff)
  71
  72 #define SET_ERROR(code) (errno=(code))
  73 #define GET_ERROR()     (errno)
  74
  75 #ifdef TRACE
  76 #define RETURN(code)    returnCode( SET_ERROR(code) )
  77 #else
  78 #define RETURN(code)    return( SET_ERROR(code) )
  79 #endif
  80
  81 /* The few common values in the status fields for menus and forms */
  82 #define _POSTED         (0x01U) /* menu or form is posted                  */
  83 #define _IN_DRIVER      (0x02U) /* menu or form is processing hook routine */
  84
  85 #define SetStatus(target,mask) (target)->status |= (unsigned short) (mask)
  86 #define ClrStatus(target,mask) (target)->status = (unsigned short) (target->status & (~mask))
  87
  88 /* Call object hook */
  89 #define Call_Hook( object, handler ) \
  90    if ( (object) != 0 && ((object)->handler) != (void *) 0 )\
  91    {\
  92         SetStatus(object, _IN_DRIVER);\
  93         (object)->handler(object);\
  94         ClrStatus(object, _IN_DRIVER);\
  95    }
  96
  97 #endif /* MF_COMMON_H_incl */