内存首地址8字节对齐分析

typedef unsigned char uint8_t;
typedef unsigned int uint32_t;

static uint8_t *pucAlignedHeap;
static uint8_t ucHeap[10 * 1024];

pucAlignedHeap = ( uint8_t * ) ( ( ( uint32_t ) &ucHeap[ 8 ] ) & ( ~( ( uint32_t ) 0x07 ) ) );