[LLVMdev] Constants.cpp:368: error: `INT8_MAX' undeclared(firstuse this function)

[Chris Lattner]

On Fri, 16 Jul 2004, Henrik Bach wrote:
> >There is currently support for building in non-cygwin windows environments
> >protected by _MSC_VER.  You just need to broaden the scope of the #ifndef
> >to include internix.
> >
>
> Sorry Chris, but my DataTypes.h.in seems to be outdated (due to I'm porting
> LLVM 1.2), so I'm not at the moment able to edit the file. Anyway, at this
> moment, I don't know how to hack it, before I know more about autoconf. I'll
> edit later when 1.3 is released.

Ah, suddenly everything makes sense.  If you're interested in LLVM on the
windows platform, *please* get CVS.  Since 1.2, there has been a lot of
work to make it work under cygwin and even mustly under the mingw
environments.  I suspect that your life will be a lot simpler.  If you do
that and this doesn't automatically work, then I'll add support for
__INTERNIX.  In any case, patches relative to LLVM 1.2 aren't very useful.

Sorry!  LLVM 1.3 will probably be out in a few weeks...

-Chris


> I've found that the min and max values for integral data types, for Interix
> 3.5 (gcc automatic macro is __INTERIX), are defined in the system header
> file: '/usr/include/limits.h':
>
> --- /usr/include/limits.h ---------------------
> ...
> #define SCHAR_MIN	(-128)		/* min value for a signed char */
> #define SCHAR_MAX	  127		/* max value for a signed char */
> #define UCHAR_MAX	 0xff		/* max value for a unsigned char */
>
> #if defined(_CHAR_UNSIGNED) || defined(__CHAR_UNSIGNED__)
> #define CHAR_MIN	0
> #define CHAR_MAX	UCHAR_MAX
> #else
> #define CHAR_MIN	SCHAR_MIN	/* mim value for a char */
> #define CHAR_MAX	SCHAR_MAX	/* max value for a char */
> #endif	/* _CHAR_UNSIGNED */
>
>
> #define SHRT_MIN	(-32768)	/* min value for (signed) short */
> #define SHRT_MAX	  32767 	/* max value for (signed) short */
> #define USHRT_MAX	 0xffff	        /* max value for unsigned short */
>
> #define INT_MIN 	(-2147483647-1) /* min value for (signed) int */
> #define INT_MAX 	  2147483647	/* max value for (signed) int */
> #define UINT_MAX	  0xffffffff	/* max value for unsigned int */
>
> #define LONG_MIN	(-2147483647L-1) /* minimum (signed) long */
> #define LONG_MAX	  2147483647L	/* maximum (signed) long */
> #define ULONG_MAX	  0xffffffffUL	/* maximum unsigned long */
>
> #if defined(_ALL_SOURCE) \
> 	|| (__STDC__ - 0 == 0) && !defined(_POSIX_C_SOURCE)  \
> 			       && !defined(_XOPEN_SOURCE)
> /*
> * Minimum and maximum values for 64-bit types
> * Define all the various well-known flavors of symbols
> *
> */
> #define ULLONG_MAX       ((u_quad_t)0-1)	    /* 0xffffffffffffffff */
> #define LLONG_MAX        ((quad_t)(ULLONG_MAX>>1))  /* 0x7fffffffffffffff */
> #define LLONG_MIN        ((quad_t)((-LLONG_MAX)-1)) /* 0x8000000000000000 */
>
>
> #define  LONG_LONG_MIN	 LLONG_MIN
> #define  LONG_LONG_MAX	 LLONG_MAX
> #define ULONG_LONG_MAX	 ULLONG_MAX
>
>
> #define QUAD_MIN 	LLONG_MIN
> #define QUAD_MAX 	LLONG_MAX
> #define UQUAD_MAX 	ULLONG_MAX
> ...
> --- /usr/include/limits.h ---------------------
>
> Which defintions do you think encompasses LLVMs expectations?:
>
> INT8_MAX 	-	SCHAR_MAX	//signed
> INT8_MIN 	-	SCHAR_MIN	//signed
> INT16_MAX 	-	SHRT_MAX	//signed
> INT16_MIN 	-	SHRT_MIN	//signed
> INT32_MAX 	-	LONG_MAX	//signed
> INT32_MIN 	-	LONG_MIN	//signed
> ...
> UINT8_MAX 	-	CHAR_MIN	//unsigned - #define _CHAR_UNSIGNED ||
> __CHAR_UNSIGNED__
> UINT8_MIN	-	(implicitly 0?)
> UINT16_MAX 	-	USHRT_MAX	//unsigned
> UINT16_MIN	-	(implicitly 0?)
> UINT32_MAX 	-	ULONG_MAX	//unsigned
> UINT32_MIN	-	(implicitly 0?)
>
>
> /Henrik
>
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-Chris

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