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https://github.com/KolibriOS/kolibrios.git
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57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
#include <string.h>
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#include <stdlib.h>
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//#include <stdint.h>
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#include "test.h"
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static char buf[512];
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static void *(*volatile pmemcpy)(void *restrict, const void *restrict2, size_t);
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static void *aligned(void *p) {
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return (void*)(((uintptr_t)p + 63) & -64U);
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}
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#define N 80
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static void test_align(int dalign, int salign, int len)
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{
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char *src = aligned(buf);
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char *dst = aligned(buf + 128);
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char *want = aligned(buf + 256);
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char *p;
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int i;
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if (salign + len > N || dalign + len > N)
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abort();
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for (i = 0; i < N; i++) {
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src[i] = '#';
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dst[i] = want[i] = ' ';
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}
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for (i = 0; i < len; i++)
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src[salign+i] = want[dalign+i] = '0'+i;
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p = pmemcpy(dst+dalign, src+salign, len);
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if (p != dst+dalign)
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t_error("memcpy(%p,...) returned %p\n", dst+dalign, p);
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for (i = 0; i < N; i++)
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if (dst[i] != want[i]) {
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t_error("memcpy(align %d, align %d, %d) failed\n", dalign, salign, len);
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t_printf("got : %.*s\n", dalign+len+1, dst);
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t_printf("want: %.*s\n", dalign+len+1, want);
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break;
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}
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}
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int main(void)
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{
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int i,j,k;
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pmemcpy = memcpy;
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for (i = 0; i < 16; i++)
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for (j = 0; j < 16; j++)
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for (k = 0; k < 64; k++)
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test_align(i,j,k);
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printf("%s finished\n", __FILE__);
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return t_status;
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}
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