Last change
on this file since 351 was 337, checked in by coas-nagasima, 6 years ago |
ASP3版ECNLを追加
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Property svn:eol-style
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native
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Property svn:mime-type
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text/x-csrc;charset=UTF-8
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File size:
358 bytes
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[337] | 1 | #include <stdlib.h>
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| 2 | #include <inttypes.h>
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| 3 |
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| 4 | uint64_t __rand48_step(unsigned short *xi, unsigned short *lc);
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| 5 | extern unsigned short __seed48[7];
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| 6 |
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| 7 | double erand48(unsigned short s[3])
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| 8 | {
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| 9 | union {
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| 10 | uint64_t u;
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| 11 | double f;
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| 12 | } x = { 0x3ff0000000000000ULL | __rand48_step(s, __seed48+3)<<4 };
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| 13 | return x.f - 1.0;
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| 14 | }
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| 15 |
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| 16 | double drand48(void)
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| 17 | {
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| 18 | return erand48(__seed48);
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| 19 | }
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