Re: [bug-gnulib] proposed patch to allocsa, vasnprintf for Tandem NSK (OSS)

[mwoehlke]

Bruno Haible wrote:
> Matthew,
>
> The citation in 
> http://lists.gnu.org/archive/html/bug-coreutils/2006-10/msg00062.html
> looks like it explains why no 'long long' type exists although the machine
> would support it. Are you sure the machine supports '[signed] long long'?
> Before we engage on a change as large as this, can you please report
> the results (output) of the attached program, compiled once with and once
> without optimization?
> If it doesn't compile, try commenting out one of the lines
>   #define HAVE_LONGLONG 1
>   #define HAVE_ULONGLONG 1

As should be expected, I had to take out HAVE_ULONGLONG for it to 
compile. I also had to take out several of the comments (non-ASCII 
characters were doing Bad Things).

If I am reading this correctly, 'long long' is OK (64-bit), which is a 
bit of a relief since one of our products demands an int8(!). The errors 
about sign extension were interesting, though.

I'm attaching the non-optimized output. The optimized ('cc -O') output 
is identical, plus these two errors:

#error "Left shift of integers of type long long does not work!!"
#error "Right shift of integers of type long long does not work!!"

--
Matthew
Will your shell have salvation? Only if it's Bourne Again.

/* Integers of type char have 8 bits. */
#define char_bitsize 8

/* Integers of type short have 16 bits. */
#define short_bitsize 16

/* Integers of type int have 32 bits. */
#define int_bitsize 32

/* Integers of type long have 32 bits. */
#define long_bitsize 32

/* Integers of type long long have 64 bits. */
#define long_long_bitsize 64

/* Integers of type unsigned char have 8 bits. */

/* Integers of type unsigned short have 16 bits. */

/* Integers of type unsigned int have 32 bits. */

/* Integers of type unsigned long have 32 bits. */

/* Integer types char and unsigned char have the same binary representation. */
/* Integer types short and unsigned short have the same binary representation. 
*/
/* Integer types int and unsigned int have the same binary representation. */
/* Integer types long and unsigned long have the same binary representation. */

#error "Right shift of integers of type char does not work!!"
#error "Casts from char to short works by zero-extend!!"
#error "Casts from char to int works by zero-extend!!"
#error "Casts from char to long works by zero-extend!!"
#error "Casts from char to long long works by zero-extend!!"
#error "Casts from char to unsigned short works by zero-extend!!"
#error "Casts from char to unsigned int works by zero-extend!!"
#error "Casts from char to unsigned long works by zero-extend!!"
/* Pointers of type char * have 32 bits. */
#define pointer_bitsize 32

/* Casts from long * to char * is OK (does nothing). */
/* Casts from char * to long * is OK (does nothing). */
/* Casts from function * to char * is OK (does nothing). */
/* Casts from char * to function * is OK (does nothing). */

/* Type char has sizeof = 1 and alignment = 1. */
#define sizeof_char 1
#define alignment_char 1

/* Type unsigned char has sizeof = 1 and alignment = 1. */

/* Type short has sizeof = 2 and alignment = 2. */
#define sizeof_short 2
#define alignment_short 2

/* Type unsigned short has sizeof = 2 and alignment = 2. */

/* Type int has sizeof = 4 and alignment = 4. */
#define sizeof_int 4
#define alignment_int 4

/* Type unsigned int has sizeof = 4 and alignment = 4. */

/* Type long has sizeof = 4 and alignment = 4. */
#define sizeof_long 4
#define alignment_long 4

/* Type unsigned long has sizeof = 4 and alignment = 4. */

/* Type long long has sizeof = 8 and alignment = 8. */
#define sizeof_long_long 8
#define alignment_long_long 8

/* Type float has sizeof = 4 and alignment = 4. */
#define sizeof_float 4
#define alignment_float 4

/* Type double has sizeof = 8 and alignment = 8. */
#define sizeof_double 8
#define alignment_double 8

/* Type char * has sizeof = 4 and alignment = 4. */

/* Type long * has sizeof = 4 and alignment = 4. */

/* Type function * has sizeof = 4 and alignment = 4. */

/* Type unsigned short is stored BIG-ENDIAN in memory (i.e. like mc68000 or 
sparc). */
#define short_big_endian
/* Type unsigned int is stored BIG-ENDIAN in memory (i.e. like mc68000 or 
sparc). */
#define int_big_endian
/* Type unsigned long is stored BIG-ENDIAN in memory (i.e. like mc68000 or 
sparc). */
#define long_big_endian

/* Stack grows down, ca. 32 bytes per function call. */
#define stack_grows_down