tiny-crc

• A tiny CRC32/64 library for C/C++
• No dependency, support c99, c++11 and boost library
• Only one header and source file.

Build and test:

make
make test

Example:

#include "crc.h"
void thats_all()
{
    const char* s = "Hello Python4";
    uint32_t val = crc32(s, strlen(s));
}

#include "crc.h"
void thats_all()
{
    std::string s = "Hello Python4";
    uint32_t val = crc32(s.data(), s.size());
    
    // In cpp, also boost version
    #ifdef USE_BOOST_LIB
    val = boost_crc32(s.data(), s.size());
    #endif
}

See test.c and test.cpp for more details.

Performance

Test a string with 80 characters length on intel-corei5 CPU for 10,000,000 invokes:

• CRC32 : 2.21 seconds
• CRC64 : 2.14 seconds
• Boost-CRC32 : 2.47 seconds
• Boost-CRC64 : 2.19 seconds
• Boost-CRC32-C : 2.46 seconds