sdcc/support/regression/tests/bug2935162.c

   1 /*
   2    bug2935162.c
   3 */
   4
   5 #pragma disable_warning 184
   6
   7 #include <testfwk.h>
   8 #include <limits.h>
   9
  10 #if defined(__STDC_VERSION__)
  11 # if (__STDC_VERSION__ >= 199901L)
  12 #  define IS_C99
  13 # endif
  14 #endif
  15
  16 const float a[] =
  17 {
  18     LONG_MAX,       /* .byte #0x00,#0x00,#0x00,#0x4F ; +2.147484e+09   */
  19     LONG_MIN,       /* .byte #0x00,#0x00,#0x00,#0x4F ; +2.147484e+09 ? */
  20
  21     12345678901,    /* .byte #0x00,#0x00,#0x80,#0x4F ; +4.294967e+09   */
  22     -12345678901,   /* .byte #0x00,#0x00,#0x80,#0x3F ; +1.000000e+00 ? */
  23
  24     12345678901L,   /* .byte #0x00,#0x00,#0x00,#0x4F ; +2.147484e+09   */
  25     -12345678901L,  /* .byte #0x00,#0x00,#0x00,#0xCF ; -2.147484e+09   */
  26
  27     2147483647L,    /* .byte #0x00,#0x00,#0x00,#0x4F ; +2.147484e+09   */
  28 #ifdef IS_C99
  29     -2147483648L,   /* .byte #0x00,#0x00,#0x00,#0xCF ; -2.147484e+09   */
  30 #else
  31     -2147483647L-1, /* .byte #0x00,#0x00,#0x00,#0xCF ; -2.147484e+09   */
  32 #endif
  33     ULONG_MAX,      /* .byte #0x00,#0x00,#0x80,#0x4F ; +4.294967e+09   */
  34     1.0,            /* .byte #0x00,#0x00,#0x80,#0x3F ; +1.000000e+00   */
  35
  36     0.0,            /* .byte #0x00,#0x00,#0x00,#0x00 ; +0.000000e+00   */
  37     -0.0            /* .byte #0x00,#0x00,#0x00,#0x80 ; -0.000000e+00   */
  38 };
  39
  40 void testBug (void)
  41 {
  42 #if !defined(__SDCC_pic16) && !defined(__SDCC_pdk14) // Lack of memory
  43     volatile int right;
  44
  45     right = -120;
  46
  47 /* These first two tests assume LONG_MAX and LONG_MIN are 32-bit. This */
  48 /* is not true for some 64-bit host compilers. Check SDCC only. */
  49 #ifdef __SDCC
  50     ASSERT(a[0] > +2.1e9 && a[0] < +2.2e9);
  51     ASSERT(a[1] < -2.1e9 && a[1] > -2.2e9);
  52 #endif
  53     ASSERT(a[2] > +2.1e9);
  54     ASSERT(a[3] < -2.1e9);
  55     ASSERT(a[4] > +2.1e9);
  56     ASSERT(a[5] < -2.1e9);
  57     ASSERT(a[6] > +2.1e9);
  58     ASSERT(a[7] < -2.1e9);
  59     ASSERT(a[8] > +4.2e9);
  60 #endif
  61 }
  62