memalign report mistake

[jiqimaogou]

#define ALIGNED_MALLOC(ptr, type, size)    {  ptr = (type *)memalign(16, sizeof(type) * size); }


    ALIGNED_MALLOC(p_test, float, 100 + 1);

    for (int i = 0; i <= 100; i++)
    {
        p_test[i] = pow(xxx);
    }

2020-02-21 11:25:53.210 4297-4297/? I/wrap.sh: WRITE of size 4 at 0x0040000401d0 thread T18
2020-02-21 11:25:53.265 4297-4297/? I/wrap.sh: 0x0040000401d1 is located 0 bytes to the right of 401-byte region [0x004000040040,0x0040000401d1)

why is 401 byte not 404 byte

[jiqimaogou]

it my wrong, macro wrong.

[DanielKristofKiss]

an extra parentheses around the macro argument will do the trick, so closing the ticket.
#define ALIGNED_MALLOC(ptr, type, size) { ptr = (type *)memalign(16, sizeof(type) * (size)); }