test/FrontendC/2002-07-29-Casts.c

   1 // RUN: %llvmgcc -S %s -o - | llvm-as -o /dev/null
   2
   3 #include <stdlib.h>
   4 #include <stdio.h>
   5 #include <sys/types.h>
   6
   7 int
   8 main(int argc, char** argv)
   9 {
  10   char     c1;
  11   short    s1, ssf1, ssd1;
  12   unsigned char  ubs0;
  13   signed char   bs0;
  14   unsigned char ubc0, uc2;
  15   unsigned short us2, usf1, usd1;
  16   int ic3, is3, sif1, sid1;
  17   unsigned int     uic4, uis4, uif1, uid1;
  18   long     slf1, sld1;
  19   unsigned long    ulf1, uld1;
  20   float    f1;
  21   double   d1;
  22
  23   /* Test integer to integer conversions */
  24
  25   c1 = (char)  (argc >= 2)? atoi(argv[1]) : 0xff64; /* 100 = 'd' */
  26   s1 = (short) (argc >= 3)? atoi(argv[2]) : -769;   /* 0xf7ff = -769 */
  27
  28   ubc0 = (unsigned char) c1;                      /* 100 = 'd' */
  29   ubs0 = (unsigned char) s1;                            /* 0xff = 255 */
  30   bs0  = (signed char) s1;                             /* 0xff = -1 */
  31
  32   uc2 = (unsigned char) c1;                       /* 100 = 'd' */
  33   us2 = (unsigned short) s1;                      /* 0xf7ff = 64767 */
  34
  35   ic3 = (int) c1;                                 /* 100 = 'd' */
  36   is3 = (int) s1;                                 /* 0xfffff7ff = -769 */
  37
  38   uic4 = (unsigned int) c1;                       /*  100 = 'd' */
  39   uis4 = (unsigned int) s1;                       /* 0xfffff7ff = 4294966527 */
  40
  41   printf("ubc0 = '%c'\n", ubc0);
  42   printf("ubs0 = %u\n",   ubs0);
  43   printf("bs0  = %d\n",   bs0);
  44   printf("c1   = '%c'\n", c1);
  45   printf("s1   = %d\n",   s1);
  46   printf("uc2  = '%c'\n", uc2);
  47   printf("us2  = %u\n",   us2);
  48   printf("ic3  = '%c'\n", ic3);
  49   printf("is3  = %d\n",   is3);
  50   printf("uic4 = '%c'\n", uic4);
  51   printf("uis4 = %u\n",   uis4);
  52
  53   /* Test floating-point to integer conversions */
  54   f1 = (float)  (argc >= 4)? atof(argv[3]) : 1.0;
  55   d1 =          (argc >= 5)? atof(argv[4]) : 2.0;
  56
  57   usf1 = (unsigned short) f1;
  58   usd1 = (unsigned short) d1;
  59   uif1 = (unsigned int) f1;
  60   uid1 = (unsigned int) d1;
  61   ulf1 = (unsigned long) f1;
  62   uld1 = (unsigned long) d1;
  63
  64   ssf1 = (short) f1;
  65   ssd1 = (short) d1;
  66   sif1 = (int) f1;
  67   sid1 = (int) d1;
  68   slf1 = (long) f1;
  69   sld1 = (long) d1;
  70
  71   printf("usf1 = %u\n", usf1);
  72   printf("usd1 = %u\n", usd1);
  73   printf("uif1 = %u\n", uif1);
  74   printf("uid1 = %u\n", uid1);
  75   printf("ulf1 = %u\n", ulf1);
  76   printf("uld1 = %u\n", uld1);
  77
  78   printf("ssf1 = %d\n", ssf1);
  79   printf("ssd1 = %d\n", ssd1);
  80   printf("sif1 = %d\n", sif1);
  81   printf("sid1 = %d\n", sid1);
  82   printf("slf1 = %d\n", slf1);
  83   printf("sld1 = %d\n", sld1);
  84
  85   return 0;
  86 }