ReactOS  0.4.15-dev-489-g75a0787
ckconfig.c File Reference
#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
Include dependency graph for ckconfig.c:

Go to the source code of this file.

Classes

struct  methods_struct
 

Macros

#define HAVE_STDDEF_H   /* replace 'define' by 'undef' if error here */
 
#define HAVE_STDLIB_H   /* same thing for stdlib.h */
 
#define HAVE_PROTOTYPES
 
#define HAVE_UNSIGNED_CHAR
 
#define HAVE_UNSIGNED_SHORT
 
#define HAVE_VOID
 
#define HAVE_CONST
 

Typedefs

typedef size_t my_size_t
 
typedef voidvoid_ptr
 
typedef void(* void_func) (int a, int b)
 
typedef struct undefined_structure * undef_struct_ptr
 

Functions

int testfunction (int arg1, int *arg2)
 
int test2function (void)
 
void test3function (void_ptr arg1, void_func arg2)
 
int test4function (const int arg1)
 
int possibly_duplicate_function ()
 
int possibly_dupli_function ()
 
int is_char_signed (int arg)
 
int is_shifting_signed (long arg)
 
int main (int argc, char **argv)
 

Variables

unsigned char un_char
 
unsigned short un_short
 
static const int carray [3] = {1, 2, 3}
 

Macro Definition Documentation

◆ HAVE_CONST

#define HAVE_CONST

Definition at line 181 of file ckconfig.c.

◆ HAVE_PROTOTYPES

#define HAVE_PROTOTYPES

Definition at line 100 of file ckconfig.c.

◆ HAVE_STDDEF_H

#define HAVE_STDDEF_H   /* replace 'define' by 'undef' if error here */

Definition at line 35 of file ckconfig.c.

◆ HAVE_STDLIB_H

#define HAVE_STDLIB_H   /* same thing for stdlib.h */

Definition at line 40 of file ckconfig.c.

◆ HAVE_UNSIGNED_CHAR

#define HAVE_UNSIGNED_CHAR

Definition at line 128 of file ckconfig.c.

◆ HAVE_UNSIGNED_SHORT

#define HAVE_UNSIGNED_SHORT

Definition at line 140 of file ckconfig.c.

◆ HAVE_VOID

#define HAVE_VOID

Definition at line 151 of file ckconfig.c.

Typedef Documentation

◆ my_size_t

typedef size_t my_size_t

Definition at line 90 of file ckconfig.c.

◆ undef_struct_ptr

typedef struct undefined_structure* undef_struct_ptr

Definition at line 205 of file ckconfig.c.

◆ void_func

typedef void(* void_func) (int a, int b)

Definition at line 157 of file ckconfig.c.

◆ void_ptr

typedef void* void_ptr

Definition at line 155 of file ckconfig.c.

Function Documentation

◆ is_char_signed()

int is_char_signed ( int  arg)

Definition at line 243 of file ckconfig.c.

248 {
249  if (arg == 189) { /* expected result for unsigned char */
250  return 0; /* type char is unsigned */
251  }
252  else if (arg != -67) { /* expected result for signed char */
253  printf("Hmm, it seems 'char' is not eight bits wide on your machine.\n");
254  printf("I fear the JPEG software will not work at all.\n\n");
255  }
256  return 1; /* assume char is signed otherwise */
257 }
#define printf
Definition: config.h:203

Referenced by main().

◆ is_shifting_signed()

int is_shifting_signed ( long  arg)

Definition at line 261 of file ckconfig.c.

267 {
268  long res = arg >> 4;
269 
270  if (res == -0x7F7E80CL) { /* expected result for signed shift */
271  return 1; /* right shift is signed */
272  }
273  /* see if unsigned-shift hack will fix it. */
274  /* we can't just test exact value since it depends on width of long... */
275  res |= (~0L) << (32-4);
276  if (res == -0x7F7E80CL) { /* expected result now? */
277  return 0; /* right shift is unsigned */
278  }
279  printf("Right shift isn't acting as I expect it to.\n");
280  printf("I fear the JPEG software will not work at all.\n\n");
281  return 0; /* try it with unsigned anyway */
282 }
static const WCHAR L[]
Definition: oid.c:1250
GLuint res
Definition: glext.h:9613
#define printf
Definition: config.h:203

Referenced by main().

◆ main()

int main ( int argc  ,
char **  argv 
)

Definition at line 286 of file ckconfig.c.

292 {
293  char signed_char_check = (char) (-67);
294  FILE *outfile;
295 
296  /* Attempt to write jconfig.h */
297  if ((outfile = fopen("jconfig.h", "w")) == NULL) {
298  printf("Failed to write jconfig.h\n");
299  return 1;
300  }
301 
302  /* Write out all the info */
303  fprintf(outfile, "/* jconfig.h --- generated by ckconfig.c */\n");
304  fprintf(outfile, "/* see jconfig.txt for explanations */\n\n");
305 #ifdef HAVE_PROTOTYPES
306  fprintf(outfile, "#define HAVE_PROTOTYPES\n");
307 #else
308  fprintf(outfile, "#undef HAVE_PROTOTYPES\n");
309 #endif
310 #ifdef HAVE_UNSIGNED_CHAR
311  fprintf(outfile, "#define HAVE_UNSIGNED_CHAR\n");
312 #else
313  fprintf(outfile, "#undef HAVE_UNSIGNED_CHAR\n");
314 #endif
315 #ifdef HAVE_UNSIGNED_SHORT
316  fprintf(outfile, "#define HAVE_UNSIGNED_SHORT\n");
317 #else
318  fprintf(outfile, "#undef HAVE_UNSIGNED_SHORT\n");
319 #endif
320 #ifdef HAVE_VOID
321  fprintf(outfile, "/* #define void char */\n");
322 #else
323  fprintf(outfile, "#define void char\n");
324 #endif
325 #ifdef HAVE_CONST
326  fprintf(outfile, "/* #define const */\n");
327 #else
328  fprintf(outfile, "#define const\n");
329 #endif
330  if (is_char_signed((int) signed_char_check))
331  fprintf(outfile, "#undef CHAR_IS_UNSIGNED\n");
332  else
333  fprintf(outfile, "#define CHAR_IS_UNSIGNED\n");
334 #ifdef HAVE_STDDEF_H
335  fprintf(outfile, "#define HAVE_STDDEF_H\n");
336 #else
337  fprintf(outfile, "#undef HAVE_STDDEF_H\n");
338 #endif
339 #ifdef HAVE_STDLIB_H
340  fprintf(outfile, "#define HAVE_STDLIB_H\n");
341 #else
342  fprintf(outfile, "#undef HAVE_STDLIB_H\n");
343 #endif
344 #ifdef NEED_BSD_STRINGS
345  fprintf(outfile, "#define NEED_BSD_STRINGS\n");
346 #else
347  fprintf(outfile, "#undef NEED_BSD_STRINGS\n");
348 #endif
349 #ifdef NEED_SYS_TYPES_H
350  fprintf(outfile, "#define NEED_SYS_TYPES_H\n");
351 #else
352  fprintf(outfile, "#undef NEED_SYS_TYPES_H\n");
353 #endif
354  fprintf(outfile, "#undef NEED_FAR_POINTERS\n");
355 #ifdef NEED_SHORT_EXTERNAL_NAMES
356  fprintf(outfile, "#define NEED_SHORT_EXTERNAL_NAMES\n");
357 #else
358  fprintf(outfile, "#undef NEED_SHORT_EXTERNAL_NAMES\n");
359 #endif
360 #ifdef INCOMPLETE_TYPES_BROKEN
361  fprintf(outfile, "#define INCOMPLETE_TYPES_BROKEN\n");
362 #else
363  fprintf(outfile, "#undef INCOMPLETE_TYPES_BROKEN\n");
364 #endif
365  fprintf(outfile, "\n#ifdef JPEG_INTERNALS\n\n");
366  if (is_shifting_signed(-0x7F7E80B1L))
367  fprintf(outfile, "#undef RIGHT_SHIFT_IS_UNSIGNED\n");
368  else
369  fprintf(outfile, "#define RIGHT_SHIFT_IS_UNSIGNED\n");
370  fprintf(outfile, "\n#endif /* JPEG_INTERNALS */\n");
371  fprintf(outfile, "\n#ifdef JPEG_CJPEG_DJPEG\n\n");
372  fprintf(outfile, "#define BMP_SUPPORTED /* BMP image file format */\n");
373  fprintf(outfile, "#define GIF_SUPPORTED /* GIF image file format */\n");
374  fprintf(outfile, "#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */\n");
375  fprintf(outfile, "#undef RLE_SUPPORTED /* Utah RLE image file format */\n");
376  fprintf(outfile, "#define TARGA_SUPPORTED /* Targa image file format */\n\n");
377  fprintf(outfile, "#undef TWO_FILE_COMMANDLINE /* You may need this on non-Unix systems */\n");
378  fprintf(outfile, "#undef NEED_SIGNAL_CATCHER /* Define this if you use jmemname.c */\n");
379  fprintf(outfile, "#undef DONT_USE_B_MODE\n");
380  fprintf(outfile, "/* #define PROGRESS_REPORT */ /* optional */\n");
381  fprintf(outfile, "\n#endif /* JPEG_CJPEG_DJPEG */\n");
382 
383  /* Close the jconfig.h file */
384  fclose(outfile);
385 
386  /* User report */
387  printf("Configuration check for Independent JPEG Group's software done.\n");
388  printf("\nI have written the jconfig.h file for you.\n\n");
389 #ifdef HAVE_PROTOTYPES
390  printf("You should use makefile.ansi as the starting point for your Makefile.\n");
391 #else
392  printf("You should use makefile.unix as the starting point for your Makefile.\n");
393 #endif
394 
395 #ifdef NEED_SPECIAL_INCLUDE
396  printf("\nYou'll need to change jconfig.h to include the system include file\n");
397  printf("that you found type size_t in, or add a direct definition of type\n");
398  printf("size_t if that's what you used. Just add it to the end.\n");
399 #endif
400 
401  return 0;
402 }
static FILE * outfile
Definition: wrjpgcom.c:81
_Check_return_opt_ _CRTIMP int __cdecl fprintf(_Inout_ FILE *_File, _In_z_ _Printf_format_string_ const char *_Format,...)
smooth NULL
Definition: ftsmooth.c:416
unsigned char
Definition: typeof.h:29
int is_char_signed(int arg)
Definition: ckconfig.c:243
_Check_return_opt_ _CRTIMP int __cdecl fclose(_Inout_ FILE *_File)
_Check_return_ _CRTIMP FILE *__cdecl fopen(_In_z_ const char *_Filename, _In_z_ const char *_Mode)
int is_shifting_signed(long arg)
Definition: ckconfig.c:261
#define printf
Definition: config.h:203

◆ possibly_dupli_function()

int possibly_dupli_function ( )

Definition at line 222 of file ckconfig.c.

223 {
224  return 1;
225 }

◆ possibly_duplicate_function()

int possibly_duplicate_function ( )

Definition at line 217 of file ckconfig.c.

218 {
219  return 0;
220 }

◆ test2function()

int test2function ( void  )

Definition at line 116 of file ckconfig.c.

117 {
118  return 0;
119 }

◆ test3function()

void test3function ( void_ptr  arg1,
void_func  arg2 
)

Definition at line 163 of file ckconfig.c.

169 {
170  char * locptr = (char *) arg1; /* check casting to and from void * */
171  arg1 = (void *) locptr;
172  (*arg2) (1, 2); /* check call of fcn returning void */
173 }
GLuint GLuint GLuint GLuint arg1
Definition: glext.h:9513

◆ test4function()

int test4function ( const int  arg1)

Definition at line 187 of file ckconfig.c.

192 {
193  return carray[arg1];
194 }
GLuint GLuint GLuint GLuint arg1
Definition: glext.h:9513
static const int carray[3]
Definition: ckconfig.c:184

◆ testfunction()

int testfunction ( int  arg1,
int arg2 
)

Definition at line 111 of file ckconfig.c.

112 {
113  return arg2[arg1];
114 }
GLuint GLuint GLuint GLuint GLuint GLuint GLuint arg2
Definition: glext.h:9514
GLuint GLuint GLuint GLuint arg1
Definition: glext.h:9513

Variable Documentation

◆ carray

const int carray[3] = {1, 2, 3}
static

Definition at line 184 of file ckconfig.c.

Referenced by test4function(), and write_pointer_description().

◆ un_char

unsigned char un_char

Definition at line 131 of file ckconfig.c.

◆ un_short

unsigned short un_short

Definition at line 143 of file ckconfig.c.