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iff AST_COMMON
hdr pthread
hdr stddef
hdr types
sys types
typ size_t,ssize_t
typ long.double
mac SF_CLOSE sys/socket.h
mac SF_APPEND sys/stat.h
proto stdc note{ Standard-C prototypes ok }end compile{
extern int foo(int, int);
bar()
{ foo(1, 1);
}
}end
dll import note{ Microsoft import/export nonsense }end execute{
__declspec(dllimport) int foo;
main() { return foo == 5 ? 0 : 1; }
int bar = 5;
int* _imp__foo = &bar;
}end
xopen stdio note{ Stdio fseek/fflush are X/Open-compliant }end execute{
#include <stdio.h>
#define Failed(file) (unlink(file),1)
main(int argc, char** argv)
{ FILE *f1, *f2;
char file[1024], buf[1024], *f, *t;
int i, fd;
/* create file */
for(f = argv[0], t = file; (*t = *f++) != 0; )
t++;
*t++ = '.'; *t++ = 'D'; *t++ = 0;
if((fd = creat(file,0666)) < 0)
return 1;
for (i = 0; i < sizeof(buf); ++i)
buf[i] = '0' + (i%10);
for (i = 0; i < 16; ++i)
if (write(fd,buf,sizeof(buf)) != sizeof(buf))
return Failed(file);
close(fd);
if(!(f1 = fopen(file,"r+")) ||
(fd = dup(fileno(f1))) < 0 ||
!(f2 = fdopen(fd,"r+")) )
return Failed(file);
if(fread(buf, 1, 7, f2) != 7 || ftell(f2) != 7)
return Failed(file);
if(fseek(f1, 1010, 0) < 0 || ftell(f1) != 1010)
return Failed(file);
fflush(f2); /* this should set the seek location to 1010 */
if(ftell(f2) != 1010)
return Failed(file);
unlink(file);
return 0;
}
}end
cat{
/* __STD_C indicates that the language is ANSI-C or C++ */
#if !defined(__STD_C) && __STDC__
#define __STD_C 1
#endif
#if !defined(__STD_C) && (__cplusplus || c_plusplus)
#define __STD_C 1
#endif
#if !defined(__STD_C) && _proto_stdc
#define __STD_C 1
#endif
#if !defined(__STD_C)
#define __STD_C 0
#endif
/* extern symbols must be protected against C++ name mangling */
#ifndef _BEGIN_EXTERNS_
#if __cplusplus || c_plusplus
#define _BEGIN_EXTERNS_ extern "C" {
#define _END_EXTERNS_ }
#else
#define _BEGIN_EXTERNS_
#define _END_EXTERNS_
#endif
#endif /*_BEGIN_EXTERNS_*/
/* _ARG_ simplifies function prototyping among flavors of C */
#ifndef _ARG_
#if __STD_C
#define _ARG_(x) x
#else
#define _ARG_(x) ()
#endif
#endif /*_ARG_*/
/* __INLINE__ is the inline keyword */
#if !defined(__INLINE__) && defined(__cplusplus)
#define __INLINE__ inline
#endif
#if !defined(__INLINE__) && defined(_WIN32) && !defined(__GNUC__)
#define __INLINE__ __inline
#endif
/* Void_t is defined so that Void_t* can address any type */
#ifndef Void_t
#if __STD_C
#define Void_t void
#else
#define Void_t char
#endif
#endif /*Void_t*/
/* dynamic linked library external scope handling */
#undef extern
#if _dll_import && !defined(__EXPORT__) && _DLL_BLD
#define __EXPORT__ __declspec(dllexport)
#endif
#if _dll_import && !defined(__IMPORT__)
#define __IMPORT__ __declspec(dllimport)
#endif
#if !defined(_astimport)
#if defined(__IMPORT__) && _DLL_BLD
#define _astimport __IMPORT__
#else
#define _astimport extern
#endif
#endif /*_astimport*/
}end
cat{
#if !_DLL_BLD && _dll_import
#define __EXTERN__(T,obj) extern T obj; T* _imp__ ## obj = &obj
#define __DEFINE__(T,obj,val) T obj = val; T* _imp__ ## obj = &obj
#else
#define __EXTERN__(T,obj) extern T obj
#define __DEFINE__(T,obj,val) T obj = val
#endif
}end
cat{
#ifndef _AST_STD_H
# if _hdr_stddef
# include <stddef.h>
# endif
# if _sys_types
# include <sys/types.h>
# endif
#endif
#if !_typ_size_t
# define _typ_size_t 1
typedef int size_t;
#endif
#if !_typ_ssize_t
# define _typ_ssize_t 1
typedef int ssize_t;
#endif
}end
tst - -DN=0 - -DN=1 - -DN=2 - -DN=3 - -DN=4 - -DN=5 - -DN=6 - -DN=7 - -DN=8 output{
#define _BYTESEX_H
#if _STD_
#include <stddef.h>
#else
#include <sys/types.h>
#endif
_BEGIN_EXTERNS_
extern int printf _ARG_((const char*, ...));
_END_EXTERNS_
#if N == 0
#define _ast_int8_t long
#define _ast_int8_str "long"
#endif
#if N == 1
#define _ast_int8_t long long
#define _ast_int8_str "long long"
#endif
#if N == 2
#define _ast_int8_t __int64_t
#define _ast_int8_str "__int64_t"
#endif
#if N == 3
#define _ast_int8_t _int64_t
#define _ast_int8_str "_int64_t"
#endif
#if N == 4
#define _ast_int8_t int64_t
#define _ast_int8_str "int64_t"
#endif
#if N == 5
#define _ast_int8_t __int64
#define _ast_int8_str "__int64"
#endif
#if N == 6
#define _ast_int8_t _int64
#define _ast_int8_str "_int64"
#endif
#if N == 7
#define _ast_int8_t int64
#define _ast_int8_str "int64"
#endif
#define elementsof(x) (sizeof(x)/sizeof(x[0]))
static char i_char = 1;
static short i_short = 1;
static int i_int = 1;
static long i_long = 1;
#ifdef _ast_int8_t
static _ast_int8_t i_long_long = 1;
#endif
static struct
{
char* name;
int size;
char* swap;
} int_type[] =
{
"char", sizeof(char), (char*)&i_char,
"short", sizeof(short), (char*)&i_short,
"int", sizeof(int), (char*)&i_int,
"long", sizeof(long), (char*)&i_long,
#ifdef _ast_int8_t
_ast_int8_str, sizeof(_ast_int8_t), (char*)&i_long_long,
#endif
};
static struct
{
char* name;
int size;
} flt_type[] =
{
"float", sizeof(float),
"double", sizeof(double),
#ifdef _typ_long_double
"long double", sizeof(long double),
#endif
};
static int int_size[] = { 1, 2, 4, 8 };
main()
{
register int t;
register int s;
register int m = 1;
register int b = 1;
register int w = 0;
#ifdef _ast_int8_t
if (int_type[elementsof(int_type)-1].size <= 4)
return 1;
#endif
for (s = 0; s < elementsof(int_size); s++)
{
for (t = 0; t < elementsof(int_type); t++)
if(int_type[t].size >= int_size[s])
break;
if (t < elementsof(int_type))
{
m = int_size[s];
printf("#define _ast_int%d_t\t\t%s\n",
m, int_type[t].name);
if (m > 1)
{
if (*int_type[t].swap)
w |= b;
b <<= 1;
}
}
}
printf("#define _ast_intmax_t _ast_int%d_t\n", m);
if (m == sizeof(long))
printf("#define _ast_intmax_long 1\n");
printf("#define _ast_intswap %d\n", w);
printf("\n");
for (t = 0; t < elementsof(flt_type); t++)
{
for(; t < elementsof(flt_type); t++)
if(flt_type[t].size != flt_type[t + 1].size)
break;
m = flt_type[t].size;
printf("#define _ast_flt%d_t\t\t%s\n",
flt_type[t].size, flt_type[t].name);
}
printf("#define _ast_fltmax_t _ast_flt%d_t\n", m);
if (m == sizeof(double))
printf("#define _ast_fltmax_double 1\n");
return 0;
}
}end
tst - -DTRY=1 - -DTRY=1 -Dvoid=char - -DTRY=2 - -DTRY=3 - -DTRY=4 output{
#define printf ______printf
#ifdef __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#undef printf
_BEGIN_EXTERNS_
extern int printf _ARG_((const char*, ...));
_END_EXTERNS_
static va_list ap;
main()
{
#if TRY == 4
printf("\n#ifndef va_listref\n");
printf("#define va_listref(p) (&(p))\t");
printf("/* pass va_list to varargs function */\n");
printf("#define va_listval(p) (*(p))\t");
printf("/* retrieve va_list from va_arg(ap,va_listarg) */\n");
printf("#define va_listarg va_list*\t");
printf("/* va_arg() va_list type */\n");
#else
#if TRY == 1
*ap++;
#endif /*TRY == 1*/
#if TRY == 2
*ap;
#endif /*TRY == 2*/
#if TRY == 3
ap++;
#endif /*TRY == 3*/
printf("\n#ifndef va_listref\n");
printf("#define va_listref(p) (p)\t");
printf("/* pass va_list to varargs function */\n");
printf("#define va_listval(p) (p)\t");
printf("/* retrieve va_list from va_arg(ap,va_listarg) */\n");
#if TRY == 2
printf("#define va_listarg va_list*\t");
#else
printf("#define va_listarg va_list\t");
#endif /*TRY == 2*/
printf("/* va_arg() va_list type */\n");
#endif /*TRY == 4*/
#if defined(_WIN32) || !defined(va_copy)
printf("#ifndef va_copy\n");
#if TRY == 2
printf("#define va_copy(to,fr) memcpy(to,fr,sizeof(va_list))\t");
printf("/* copy va_list fr -> to */\n");
#else
printf("#define va_copy(to,fr) ((to)=(fr))\t");
printf("/* copy va_list fr -> to */\n");
#endif
printf("#endif\n");
#endif
printf("#undef _ast_va_list\n");
printf("#ifdef va_start\n");
printf("#define _ast_va_list va_list\n");
printf("#else\n");
#if TRY == 1 || TRY == 2
printf("#define _ast_va_list void*\t");
#else
#if TRY == 3
if (sizeof(va_list) == sizeof(long))
printf("#define _ast_va_list long\t");
else if (sizeof(va_list) == sizeof(short))
printf("#define _ast_va_list short\t");
else
printf("#define _ast_va_list int\t");
#else
printf("#define _ast_va_list ...\t");
#endif
#endif
printf("/* va_list that avoids #include */\n");
printf("#endif\n\n");
printf("#endif\n");
return 0;
}
}end
|
