Build Error: performing pointer subtraction with a null pointer about micro-service

[usikninam]

micro-service/libs/cpprestsdk/Release/libs/websocketpp/websocketpp/common/md5.hpp

change lines 198-209

to

    {
        /*
         * On little-endian machines, we can process properly aligned
         * data without copying it.
         */
        if (!((reinterpret_cast<uintptr_t>(data)) & 3)) {
        /* data are properly aligned */
        X = (md5_word_t const *)data;
        } else {
        /* not aligned */
        std::memcpy(xbuf, data, 64);
        X = xbuf;
        }
    }

./build_dependencies.sh - it does not save changes because in ./build_dependencies.sh it clones from old version from repository

To build with new changes:

• make change, save
• from micro-service/libs

rm -rf ./cpprestsdk/build.release

• go to /micro-service/libs/cpprestsdk
• create folder

mkdir build.release

• go to new folder & build

cd build.release && cmake ../Release -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF -DBUILD_TESTS=OFF -DBUILD_SAMPLES=OFF

make