60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
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#include <float.h>
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#include <math.h>
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#include <stdio.h>
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int
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main (void)
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{
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volatile union { long double l; long long x[2]; } u;
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char buf[64];
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int result = 0;
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#define TEST(val) \
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do \
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{ \
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u.l = (val); \
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snprintf (buf, sizeof buf, "%LaL", u.l); \
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if (strcmp (buf, #val) != 0) \
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{ \
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printf ("Error on line %d: %s != %s\n", __LINE__, buf, #val); \
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result = 1; \
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} \
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/* printf ("%s %La %016Lx %016Lx\n", #val, u.l, u.x[0], u.x[1]); */ \
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} \
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while (0)
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#if LDBL_MANT_DIG >= 106
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# if LDBL_MANT_DIG == 106
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TEST (0x0.ffffffffffffp-1022L);
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TEST (0x0.ffffffffffff1p-1022L);
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TEST (0x0.fffffffffffffp-1022L);
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# endif
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TEST (0x1p-1022L);
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TEST (0x1.0000000000001p-1022L);
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TEST (0x1.00000000001e7p-1022L);
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TEST (0x1.fffffffffffffp-1022L);
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TEST (0x1p-1021L);
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TEST (0x1.00000000000008p-1021L);
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TEST (0x1.0000000000001p-1021L);
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TEST (0x1.00000000000018p-1021L);
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TEST (0x1.0000000000000f8p-1017L);
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TEST (0x1.0000000000001p-1017L);
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TEST (0x1.000000000000108p-1017L);
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TEST (0x1.000000000000dcf8p-1013L);
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TEST (0x1.000000000000ddp-1013L);
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TEST (0x1.000000000000dd08p-1013L);
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TEST (0x1.ffffffffffffffffffffffffffp-1L);
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TEST (0x1.ffffffffffffffffffffffffff8p-1L);
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TEST (0x1p+0L);
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TEST (0x1.000000000000000000000000008p+0L);
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TEST (0x1.00000000000000000000000001p+0L);
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TEST (0x1.000000000000000000000000018p+0L);
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TEST (0x1.23456789abcdef123456789abc8p+0L);
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TEST (0x1.23456789abcde7123456789abc8p+0L);
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TEST (0x1.23456789abcdef123456789abc8p+64L);
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TEST (0x1.23456789abcde7123456789abc8p+64L);
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TEST (0x1.123456789abcdef123456789p-969L);
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#endif
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return result;
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}
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