gcc/testsuite/gcc.dg/dfp/compare-rel.h

   1 /* Basic test of runtime relational comparisons using simple values that
   2    are not affected by rounding.  */
   3
   4 #include <stdlib.h>
   5
   6 static int failcnt;
   7
   8 #define PASTE2(A,B) A ## B
   9 #define PASTE(A,B) PASTE2(A,B)
  10
  11 #ifdef DBG
  12 #include <stdio.h>
  13 #define FAILURE(OP,KIND) \
  14   { printf ("failed at line %d: %s for %s values\n", __LINE__, OP, KIND); \
  15     failcnt++; }
  16 #else
  17 #define FAILURE(OP,KIND) abort ();
  18 #endif
  19
  20 #ifndef WIDTH
  21 #error define WIDTH as decimal float size in bytes
  22 #endif
  23
  24 #if WIDTH == 32
  25 #define DTYPE _Decimal32
  26 #define SUFFIX DF
  27 #elif WIDTH == 64
  28 #define DTYPE _Decimal64
  29 #define SUFFIX DD
  30 #elif WIDTH == 128
  31 #define DTYPE _Decimal128
  32 #define SUFFIX DL
  33 #elif WIDTH == 0
  34 /* This is for testing the test using a type known to work.  */
  35 #define DTYPE double
  36 #define SUFFIX
  37 #else
  38 #error invalid width for decimal float type
  39 #endif
  40
  41 DTYPE m_two = PASTE(-2.0, SUFFIX);
  42 DTYPE m_one = PASTE(-1.0, SUFFIX);
  43 DTYPE zero  = PASTE(0.0, SUFFIX);
  44 DTYPE one   = PASTE(1.0, SUFFIX);
  45 DTYPE two   = PASTE(2.0, SUFFIX);
  46
  47 void
  48 test_compares (void)
  49 {
  50   DTYPE x = one;
  51   DTYPE y = zero;
  52   DTYPE z = m_one;
  53
  54   /* Less than or equal to: comparisons against equal values.  */
  55
  56   if (! (x <= one))   FAILURE ("<=", "equal")
  57   if (! (y <= zero))  FAILURE ("<=", "equal")
  58   if (! (z <= m_one)) FAILURE ("<=", "equal")
  59
  60   /* Less than or equal to: comparisons against lesser values.  */
  61
  62   if (x <= m_one)     FAILURE ("<=", "lesser")
  63   if (x <= zero)      FAILURE ("<=", "lesser")
  64   if (y <= m_one)     FAILURE ("<=", "lesser")
  65   if (z <= m_two)     FAILURE ("<=", "lesser")
  66
  67   /* Less than or equal to: comparisons against greater values.  */
  68
  69   if (! (x <= two))   FAILURE ("<=", "greater")
  70   if (! (y <= one))   FAILURE ("<=", "greater")
  71   if (! (z <= zero))  FAILURE ("<=", "greater")
  72   if (! (z <= one))   FAILURE ("<=", "greater")
  73
  74   /* Less than: comparisons against equal values.  */
  75
  76   if (x < one)        FAILURE ("<", "equal")
  77   if (y < zero)       FAILURE ("<", "equal")
  78   if (z < m_one)      FAILURE ("<", "equal")
  79
  80   /* Less than: comparisons against lesser values.  */
  81
  82   if (x < m_one)      FAILURE ("<", "lesser")
  83   if (x < zero)       FAILURE ("<", "lesser")
  84   if (y < m_one)      FAILURE ("<", "lesser")
  85   if (z < m_two)      FAILURE ("<", "lesser")
  86
  87   /* Less than: comparisons against greater values.  */
  88
  89   if (! (x < two))    FAILURE ("<", "greater")
  90   if (! (y < one))    FAILURE ("<", "greater")
  91   if (! (z < zero))   FAILURE ("<", "greater")
  92   if (! (z < one))    FAILURE ("<", "greater")
  93
  94   /* Greater than or equal to: comparisons against equal values.  */
  95
  96   if (! (x >= one))   FAILURE (">=", "equal")
  97   if (! (y >= zero))  FAILURE (">=", "equal")
  98   if (! (z >= m_one)) FAILURE (">=", "equal")
  99
 100   /* Greater than or equal to: comparisons against lesser values.  */
 101
 102   if (! (x >= m_one)) FAILURE (">=", "lesser")
 103   if (! (x >= zero))  FAILURE (">=", "lesser")
 104   if (! (y >= m_one)) FAILURE (">=", "lesser")
 105   if (! (z >= m_two)) FAILURE (">=", "lesser")
 106
 107   /* Greater than or equal to: comparisons against greater values.  */
 108
 109   if (x >= two)       FAILURE (">=", "greater")
 110   if (y >= one)       FAILURE (">=", "greater")
 111   if (z >= zero)      FAILURE (">=", "greater")
 112   if (z >= one)       FAILURE (">=", "greater")
 113
 114   /* Greater than: comparisons against equal values.  */
 115
 116   if (x > one)        FAILURE (">", "equal")
 117   if (y > zero)       FAILURE (">", "equal")
 118   if (z > m_one)      FAILURE (">", "equal")
 119
 120   /* Greater than: comparisons against lesser values.  */
 121
 122   if (! (x > m_one))  FAILURE (">", "lesser")
 123   if (! (x > zero))   FAILURE (">", "lesser")
 124   if (! (y > m_one))  FAILURE (">", "lesser")
 125   if (! (z > m_two))  FAILURE (">", "lesser")
 126
 127   /* Greater than: comparisons against greater values.  */
 128
 129   if (x > two)        FAILURE (">", "greater")
 130   if (y > one)        FAILURE (">", "greater")
 131   if (z > zero)       FAILURE (">", "greater")
 132   if (z > one)        FAILURE (">", "greater")
 133
 134   if (failcnt)
 135     abort ();
 136 }