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149 |
jeremybenn |
/* Basic test of runtime relational comparisons using simple values that
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are not affected by rounding. */
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#include <stdlib.h>
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static int failcnt;
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#define PASTE2(A,B) A ## B
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#define PASTE(A,B) PASTE2(A,B)
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#ifdef DBG
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#include <stdio.h>
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#define FAILURE(OP,KIND) \
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{ printf ("failed at line %d: %s for %s values\n", __LINE__, OP, KIND); \
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failcnt++; }
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#else
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#define FAILURE(OP,KIND) abort ();
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#endif
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#ifndef WIDTH
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#error define WIDTH as decimal float size in bytes
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#endif
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#if WIDTH == 32
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#define DTYPE _Decimal32
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#define SUFFIX DF
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#elif WIDTH == 64
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#define DTYPE _Decimal64
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#define SUFFIX DD
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#elif WIDTH == 128
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#define DTYPE _Decimal128
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#define SUFFIX DL
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#elif WIDTH == 0
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/* This is for testing the test using a type known to work. */
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#define DTYPE double
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#define SUFFIX
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#else
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#error invalid width for decimal float type
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#endif
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DTYPE m_two = PASTE(-2.0, SUFFIX);
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DTYPE m_one = PASTE(-1.0, SUFFIX);
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DTYPE zero = PASTE(0.0, SUFFIX);
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DTYPE one = PASTE(1.0, SUFFIX);
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DTYPE two = PASTE(2.0, SUFFIX);
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void
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test_compares (void)
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{
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DTYPE x = one;
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DTYPE y = zero;
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DTYPE z = m_one;
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/* Less than or equal to: comparisons against equal values. */
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if (! (x <= one)) FAILURE ("<=", "equal")
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if (! (y <= zero)) FAILURE ("<=", "equal")
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if (! (z <= m_one)) FAILURE ("<=", "equal")
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/* Less than or equal to: comparisons against lesser values. */
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if (x <= m_one) FAILURE ("<=", "lesser")
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if (x <= zero) FAILURE ("<=", "lesser")
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if (y <= m_one) FAILURE ("<=", "lesser")
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if (z <= m_two) FAILURE ("<=", "lesser")
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/* Less than or equal to: comparisons against greater values. */
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if (! (x <= two)) FAILURE ("<=", "greater")
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if (! (y <= one)) FAILURE ("<=", "greater")
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if (! (z <= zero)) FAILURE ("<=", "greater")
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if (! (z <= one)) FAILURE ("<=", "greater")
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/* Less than: comparisons against equal values. */
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if (x < one) FAILURE ("<", "equal")
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if (y < zero) FAILURE ("<", "equal")
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if (z < m_one) FAILURE ("<", "equal")
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/* Less than: comparisons against lesser values. */
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if (x < m_one) FAILURE ("<", "lesser")
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if (x < zero) FAILURE ("<", "lesser")
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if (y < m_one) FAILURE ("<", "lesser")
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if (z < m_two) FAILURE ("<", "lesser")
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/* Less than: comparisons against greater values. */
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if (! (x < two)) FAILURE ("<", "greater")
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if (! (y < one)) FAILURE ("<", "greater")
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if (! (z < zero)) FAILURE ("<", "greater")
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if (! (z < one)) FAILURE ("<", "greater")
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/* Greater than or equal to: comparisons against equal values. */
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if (! (x >= one)) FAILURE (">=", "equal")
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if (! (y >= zero)) FAILURE (">=", "equal")
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if (! (z >= m_one)) FAILURE (">=", "equal")
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/* Greater than or equal to: comparisons against lesser values. */
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if (! (x >= m_one)) FAILURE (">=", "lesser")
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if (! (x >= zero)) FAILURE (">=", "lesser")
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if (! (y >= m_one)) FAILURE (">=", "lesser")
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if (! (z >= m_two)) FAILURE (">=", "lesser")
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/* Greater than or equal to: comparisons against greater values. */
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if (x >= two) FAILURE (">=", "greater")
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if (y >= one) FAILURE (">=", "greater")
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if (z >= zero) FAILURE (">=", "greater")
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if (z >= one) FAILURE (">=", "greater")
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/* Greater than: comparisons against equal values. */
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if (x > one) FAILURE (">", "equal")
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if (y > zero) FAILURE (">", "equal")
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if (z > m_one) FAILURE (">", "equal")
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/* Greater than: comparisons against lesser values. */
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if (! (x > m_one)) FAILURE (">", "lesser")
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if (! (x > zero)) FAILURE (">", "lesser")
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if (! (y > m_one)) FAILURE (">", "lesser")
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if (! (z > m_two)) FAILURE (">", "lesser")
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/* Greater than: comparisons against greater values. */
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if (x > two) FAILURE (">", "greater")
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if (y > one) FAILURE (">", "greater")
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if (z > zero) FAILURE (">", "greater")
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if (z > one) FAILURE (">", "greater")
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if (failcnt)
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abort ();
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}
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