1 #include <assert.h>
2 #include <stdio.h>
3 #include <string.h>
4 #include "zutil.h"
5
main(void)6 int main(void) {
7 unsigned char plain[32];
8 unsigned char compressed[130];
9 PREFIX3(stream) strm;
10 int bound;
11 z_size_t bytes;
12
13 for (int i = 0; i <= 32; i++) {
14 memset(plain, 6, i);
15 memset(&strm, 0, sizeof(strm));
16 PREFIX(deflateInit2)(&strm, 0, 8, 31, 1, Z_DEFAULT_STRATEGY);
17 bound = PREFIX(deflateBound)(&strm, i);
18 strm.next_in = plain;
19 strm.next_out = compressed;
20 strm.avail_in = i;
21 strm.avail_out = sizeof(compressed);
22 if (PREFIX(deflate)(&strm, Z_FINISH) != Z_STREAM_END) return -1;
23 if (strm.avail_in != 0) return -1;
24 printf("bytes = %2i, deflateBound = %2i, total_out = %2zi\n", i, bound, strm.total_out);
25 if (bound < strm.total_out) return -1;
26 if (PREFIX(deflateEnd)(&strm) != Z_OK) return -1;
27 }
28 for (int i = 0; i <= 32; i++) {
29 bytes = sizeof(compressed);
30 for (int j = 0; j < i; j++) {
31 plain[j] = j;
32 }
33 bound = PREFIX(compressBound)(i);
34 if (PREFIX(compress2)(compressed, &bytes, plain, i, 1) != Z_OK) return -1;
35 printf("bytes = %2i, compressBound = %2i, total_out = %2zi\n", i, bound, (size_t)bytes);
36 if (bytes > bound) return -1;
37 }
38 return 0;
39 }
40