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Last change
on this file since 14646 was 11071, checked in by tbretz, 14 years ago |
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Replaced v19r21 by a version extracted with 'unzip -a' to get proper unix text format.
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File size:
504 bytes
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| 1 | #define DIMLIB
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| 2 | #include <dim.h>
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| 3 |
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| 4 | /*
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| 5 | * Hash function
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| 6 | */
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| 7 |
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| 8 | /*
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| 9 | int HashFunction(name, max)
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| 10 | char *name;
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| 11 | int max;
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| 12 | {
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| 13 | register int code = 0;
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| 14 |
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| 15 | while(*name)
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| 16 | {
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| 17 | code += *name++;
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| 18 | }
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| 19 | return (code % max);
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| 20 | }
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| 21 | */
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| 22 | int HashFunction(char *name, int max)
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| 23 | {
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| 24 | unsigned int b = 378551;
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| 25 | unsigned int a = 63689;
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| 26 | unsigned int hash = 0;
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| 27 | int i = 0;
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| 28 | int len;
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| 29 |
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| 30 | len = strlen(name);
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| 31 |
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| 32 | for(i = 0; i < len; name++, i++)
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| 33 | {
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| 34 | hash = hash*a+(*name);
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| 35 | a = a*b;
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| 36 | }
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| 37 |
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| 38 | return (hash % max);
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| 39 | }
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