diff options
Diffstat (limited to 'generic/tclInt.h')
| -rw-r--r-- | generic/tclInt.h | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/generic/tclInt.h b/generic/tclInt.h index 67be30e..915d2fa 100644 --- a/generic/tclInt.h +++ b/generic/tclInt.h @@ -12,7 +12,7 @@ * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclInt.h,v 1.294 2006/11/12 23:15:41 dkf Exp $ + * RCS: @(#) $Id: tclInt.h,v 1.295 2006/11/13 08:23:08 das Exp $ */ #ifndef _TCLINT @@ -113,6 +113,31 @@ typedef int ptrdiff_t; #endif /* + * Macros used to cast between pointers and integers (e.g. when storing an int + * in ClientData), on 64-bit architectures they avoid gcc warning about "cast + * to/from pointer from/to integer of different size". + */ + +#if !defined(INT2PTR) && !defined(PTR2INT) +# if defined(HAVE_INTPTR_T) || defined(intptr_t) +# define INT2PTR(p) ((void*)(intptr_t)(p)) +# define PTR2INT(p) ((int)(intptr_t)(p)) +# else +# define INT2PTR(p) ((void*)(p)) +# define PTR2INT(p) ((int)(p)) +# endif +#endif +#if !defined(UINT2PTR) && !defined(PTR2UINT) +# if defined(HAVE_UINTPTR_T) || defined(uintptr_t) +# define UINT2PTR(p) ((void*)(uintptr_t)(p)) +# define PTR2UINT(p) ((unsigned int)(uintptr_t)(p)) +# else +# define UINT2PTR(p) ((void*)(p)) +# define PTR2UINT(p) ((unsigned int)(p)) +# endif +#endif + +/* * The following procedures allow namespaces to be customized to support * special name resolution rules for commands/variables. */ |