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annotate byte_diff.c @ 11:978eaa166609

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more trivial changes to get rid of compile-time warnings, nndb is still working, need to test cdbmake and friends
author Henry S. Thompson <ht@inf.ed.ac.uk>
date Fri, 31 Jan 2025 17:28:35 +0000
parents 2cb46628feec
children
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2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
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1 #include "byte.h"
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2
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3 int byte_diff(s,n,t)
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4 register char *s;
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5 register unsigned int n;
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6 register char *t;
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7 {
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8 for (;;) {
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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:
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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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14 return ((int)(unsigned int)(unsigned char) *s)
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15 - ((int)(unsigned int)(unsigned char) *t);
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16 }