/* { dg-options "-std=gnu99 -O0" } */
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/* { dg-options "-std=gnu99 -O0" } */
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/* N1150 5.2 Conversions among decimal floating types and between
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/* N1150 5.2 Conversions among decimal floating types and between
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decimal floating types and generic floating types.
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decimal floating types and generic floating types.
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C99 6.3.1.5(3) New.
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C99 6.3.1.5(3) New.
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Test various conversions involving decimal floating types. */
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Test various conversions involving decimal floating types. */
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#include <decfloat.h>
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#include <decfloat.h>
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extern void abort (void);
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extern void abort (void);
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volatile _Decimal32 d32;
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volatile _Decimal32 d32;
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volatile _Decimal64 d64;
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volatile _Decimal64 d64;
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volatile _Decimal128 d128;
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volatile _Decimal128 d128;
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int
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int
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main ()
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main ()
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{
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{
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/* Conversions to larger types. */
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/* Conversions to larger types. */
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d32 = 123.4df;
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d32 = 123.4df;
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d64 = d32;
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d64 = d32;
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if (d64 != 123.4dd)
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if (d64 != 123.4dd)
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abort ();
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abort ();
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d128 = d32;
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d128 = d32;
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if (d128 != 123.4dl)
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if (d128 != 123.4dl)
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abort ();
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abort ();
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d64 = 345.678dd;
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d64 = 345.678dd;
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d128 = d64;
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d128 = d64;
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if (d128 != 345.678dl)
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if (d128 != 345.678dl)
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abort ();
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abort ();
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/* Conversions to smaller types for which the value fits. */
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/* Conversions to smaller types for which the value fits. */
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d64 = 3456.789dd;
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d64 = 3456.789dd;
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d32 = d64;
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d32 = d64;
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if (d32 != 3456.789df)
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if (d32 != 3456.789df)
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abort ();
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abort ();
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d128 = 123.4567dl;
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d128 = 123.4567dl;
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d32 = d128;
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d32 = d128;
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if (d32 != 123.4567dl)
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if (d32 != 123.4567dl)
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abort ();
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abort ();
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d128 = 1234567890.123456dl;
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d128 = 1234567890.123456dl;
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d64 = d128;
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d64 = d128;
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if (d64 != 1234567890.123456dd)
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if (d64 != 1234567890.123456dd)
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abort ();
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abort ();
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/* Test demotion to non-representable decimal floating type. */
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/* Test demotion to non-representable decimal floating type. */
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/* Assumes a default rounding mode of 'near'. This uses the rules
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/* Assumes a default rounding mode of 'near'. This uses the rules
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describe in the 27 July 2005 draft of IEEE 754r, which are much
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describe in the 27 July 2005 draft of IEEE 754r, which are much
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more clear that what's described in draft 5 of N1107. */
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more clear that what's described in draft 5 of N1107. */
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/* Rounds to what _Decimal32 can handle. */
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/* Rounds to what _Decimal32 can handle. */
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d64 = 9.99999949E96DD;
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d64 = 9.99999949E96DD;
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d32 = d64;
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d32 = d64;
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if (d32 != DEC32_MAX)
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if (d32 != DEC32_MAX)
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abort();
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abort();
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/* Rounds to more than _Decimal32 can handle. */
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/* Rounds to more than _Decimal32 can handle. */
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d64 = 9.9999995E96DD;
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d64 = 9.9999995E96DD;
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d32 = d64;
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d32 = d64;
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if (d32 != __builtin_infd32())
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if (d32 != __builtin_infd32())
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abort();
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abort();
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/* Rounds to what _Decimal32 can handle. */
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/* Rounds to what _Decimal32 can handle. */
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d128 = 9.99999949E96DD;
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d128 = 9.99999949E96DD;
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d32 = d128;
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d32 = d128;
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if (d32 != DEC32_MAX)
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if (d32 != DEC32_MAX)
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abort();
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abort();
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/* Rounds to more than _Decimal32 can handle. */
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/* Rounds to more than _Decimal32 can handle. */
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d128= 9.9999995E96DD;
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d128= 9.9999995E96DD;
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d32 = d128;
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d32 = d128;
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if (d32 != __builtin_infd32())
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if (d32 != __builtin_infd32())
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abort();
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abort();
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/* Rounds to what _Decimal64 can handle. */
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/* Rounds to what _Decimal64 can handle. */
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d128 = 9.99999999999999949E384DL;
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d128 = 9.99999999999999949E384DL;
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d64 = d128;
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d64 = d128;
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if (d64 != DEC64_MAX)
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if (d64 != DEC64_MAX)
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abort();
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abort();
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/* Rounds to more than _Decimal64 can handle. */
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/* Rounds to more than _Decimal64 can handle. */
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d128 = 9.9999999999999995E384DL;
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d128 = 9.9999999999999995E384DL;
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d64 = d128;
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d64 = d128;
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if (d64 != __builtin_infd64())
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if (d64 != __builtin_infd64())
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abort();
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abort();
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return 0;
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return 0;
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}
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}
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