scm_t_bits versus uintptr_t

scm_t_bits versus uintptr_t

[Kevin Ryde]

While looking at some preprocessor output I noticed scm_t_bits is
coming out as plain unsigned long on my i386 debian with gcc 3.3.

It seems INTPTR_MAX and INTPTR_MIN are defined in stdint.h in glibc
(2.3.1) and not in limits.h, so tags.h decides intptr_t can't be used.

It might be necessary to include inttypes.h or stdint.h, or whichever
is available, if the intention is to use intptr_t when possible.


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Re: scm_t_bits versus uintptr_t

[Marius Vollmer]

Kevin Ryde <user42@zip.com.au> writes:

> It might be necessary to include inttypes.h or stdint.h, or whichever
> is available, if the intention is to use intptr_t when possible.

Yes, that is the intention.  Could you fix this?

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Re: scm_t_bits versus uintptr_t

[Kevin Ryde]

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Marius Vollmer <mvo@zagadka.de> writes:
>
> Yes, that is the intention.  Could you fix this?

        * tags.h: Use inttypes.h and stdint.h when available, for INTPTR_MAX
        and friends required by scm_t_bits setups.


[-- Attachment #2: tags.h.inttypes.diff --]
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--- tags.h.~1.100.~	2003-06-05 00:30:58.000000000 +1000
+++ tags.h	2003-06-07 08:26:00.000000000 +1000
@@ -29,6 +29,14 @@
 /* picks up scmconfig.h too */
 #include "libguile/__scm.h"
 
+#if HAVE_INTTYPES_H
+# include <inttypes.h>  /* for INTPTR_MAX and friends */
+#else
+# if HAVE_STDINT_H
+#  include <stdint.h>   /* for INTPTR_MAX and friends */
+# endif
+#endif
+
 /* In the beginning was the Word:
  */
 #if SCM_SIZEOF_INTPTR_T != 0 && defined(INTPTR_MAX) && defined(INTPTR_MIN)

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