Mikhail Kornilovich
e9f07dc47b
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28 lines
618 B
C
28 lines
618 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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int main(int argc, char **argv) {
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if (argc < 2) {
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fprintf(stderr, "usage: %s <megabytes>\n", argv[0]);
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return 1;
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}
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long mb = strtol(argv[1], NULL, 10);
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if (mb <= 0) return 1;
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size_t bytes = (size_t)mb * 1024 * 1024;
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char *p = (char *)malloc(bytes);
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if (!p) {
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fprintf(stderr, "malloc failed\n");
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return 2;
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}
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for (size_t i = 0; i < bytes; i += 4096) {
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p[i] = (char)(i & 0xff);
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}
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volatile char sink = p[bytes - 1];
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(void)sink;
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printf("ok %ld\n", mb);
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return 0;
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}
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