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Core: memeq8len

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This commit is contained in:
Mirek Fidler 2025-04-10 09:36:47 +02:00
parent 655233f338
commit fb1deb732f
6 changed files with 165 additions and 0 deletions
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43
benchmarks/memeq8len/memeq8len.cpp Normal file
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#include <Core/Core.h>
using namespace Upp;
size_t memeq8len_e(const void *p, const void *q, size_t count)
{
const byte *t = (byte *)p;
const byte *t0 = t;
const byte *s = (byte *)q;
const byte *et = t0 + count;
while(t < et) {
if(*t != *s)
return t - t0;
t++;
s++;
}
return count;
}
int len, len2;
CONSOLE_APP_MAIN
{
StdLogSetup(LOG_COUT|LOG_FILE);
byte a[497], b[497];
for(int i = 0; i < 497; i++)
a[i] = Random();
for(int i = 0; i < 10000; i++)
for(int i = 0; i < 497; i++) {
memcpy(a, b, 497);
b[Random(497)] = 13;
{ RTIMING("memeqlen"); len += memeq8len(a, b, 497); }
{ RTIMING("memeqlen_e"); len2 += memeq8len_e(a, b, 497); }
{ RTIMING("memeqlen1"); len += memeq8len(a + 1, b + 1, 496); }
{ RTIMING("memeqlen_e1"); len2 += memeq8len_e(a + 1, b + 1, 496); }
}
}

9
benchmarks/memeq8len/memeq8len.upp Normal file
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uses
Core;
file
memeq8len.cpp;
mainconfig
"" = "";