Same code from : https://stackoverflow.com/a/17646775
Fixed some alignment issues, replaced asm code with compiler intrinsics
Compile time switch to hardware version if supported
(crc32c instruction on x64), fallback to software version if not available
See CmakeLists.txt, it checks "-msse4.2" flag. Stackoverflow answer has
runtime dispatch between hardware and software versions if you'd like that.
This is Crc32c algorithm, not Crc32

## Cmake

# Needs HAVE_CRC32C definition to enable CPU instruction usage.

## Only use hardware version in 64 bit architectures.
include(CheckCCompilerFlag)

if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
    check_c_compiler_flag(-msse4.2 HAVE_CRC32_HARDWARE)
    if (${HAVE_CRC32_HARDWARE})
        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -msse4.2 -DHAVE_CRC32C")
    endif ()
endif()


#include "sc_crc32.h"

#include <stdio.h>

int main(int argc, char *argv[])
{
    uint32_t crc;
    const uint8_t buf[100] = {0};

    sc_crc32_init();

    // Partial calculation example
    crc = sc_crc32(0, buf, 10);
    crc = sc_crc32(crc, buf + 10, sizeof(buf) - 10);
    printf("crc : %u \n", crc);

    // Calculate at once
    crc = sc_crc32(0, buf, sizeof(buf));
    printf("crc : %u \n", crc);

    return 0;
}