linux zlib 编译

sudo apt-get update
sudo apt-get install build-essential

wget http://zlib.net/zlib-1.2.11.tar.gz
tar -xzf zlib-1.2.11.tar.gz
cd zlib-1.2.11

./configure
make

sudo make install

gcc my_program.c -lz -L/path/to/zlib/lib

#include <stdio.h>
#include <string.h>
#include <zlib.h>

void compress_data(const char *input, uLong input_len, Bytef *output, uLong *output_len) {
    compress(output, output_len, (const Bytef *)input, input_len);
}

void decompress_data(const Bytef *input, uLong input_len, Bytef *output, uLong *output_len) {
    uncompress(output, output_len, input, input_len);
}

int main() {
    const char *original_data = "Hello, zlib!";
    uLong original_len = strlen(original_data) + 1;
    uLong compressed_len = compressBound(original_len);
    uLong decompressed_len = original_len;

    Bytef *compressed_data = malloc(compressed_len);
    Bytef *decompressed_data = malloc(decompressed_len);

    compress_data(original_data, original_len, compressed_data, &compressed_len);
    decompress_data(compressed_data, compressed_len, decompressed_data, &decompressed_len);

    printf("Original: %s\n", original_data);
    printf("Decompressed: %s\n", decompressed_data);

    free(compressed_data);
    free(decompressed_data);

    return 0;
}

gcc -o zlib_example zlib_example.c -lz
./zlib_example