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annotate byte_diff.c @ 0:2cb46628feec

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from cdb-0.75 per http://cr.yp.to/cdb.html, retrieved 2025-01-03, contents appear to have been create on 2000-02-19
author Henry S. Thompson <ht@inf.ed.ac.uk>
date Wed, 29 Jan 2025 10:50:34 +0000
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2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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1 #include "byte.h"
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2
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
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3 int byte_diff(s,n,t)
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Henry S. Thompson <ht@inf.ed.ac.uk>
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4 register char *s;
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
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5 register unsigned int n;
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
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6 register char *t;
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Henry S. Thompson <ht@inf.ed.ac.uk>
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7 {
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Henry S. Thompson <ht@inf.ed.ac.uk>
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8 for (;;) {
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Henry S. Thompson <ht@inf.ed.ac.uk>
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9 if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
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10 if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
11 if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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12 if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
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13 }
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Henry S. Thompson <ht@inf.ed.ac.uk>
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14 return ((int)(unsigned int)(unsigned char) *s)
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Henry S. Thompson <ht@inf.ed.ac.uk>
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15 - ((int)(unsigned int)(unsigned char) *t);
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
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16 }