Bmp aligned on Day 18 May 35

1.

#pragma pack(push,1)
typedef struct tagBITMAPFILEHEADER {
    uint16_t    bfType;
    uint32_t    bfSize;
    uint32_t    bfReserved;
    uint32_t    bfOffBits;
} BITMAPFILEHEADER;

typedef struct tagBITMAPINFOHEADER {
    uint32_t    biSize;
    int32_t     biWidth;
    int32_t     biHeight;
    uint16_t    biPlanes;
    uint16_t    biBitCount;
    uint32_t    biCompression;
    uint32_t    biSizeImage;
    int32_t     biXPelsPerMeter;
    int32_t     biYPelsPerMeter;
    uint32_t    biClrUsed;
    uint32_t    biClrImportant;
} BITMAPINFOHEADER;
#pragma pack(pop)

　　

According to the above code written documents, picture files open failed, said file is damaged.

Later found inside the variable ordering BMPFILEHEADER_T this data interface, not 4-byte aligned, leading to sizeof (BMPFILEHEADER_T) larger than expected!

Therefore, the data structure is provided directly by the macro-byte alignment is: 1 byte alignment.