sizeof() странно себя ведёт... Опции

[Andy Sm.]

Есть структурка.

typedef struct {
unsigned short Version;
unsigned short Hi_Addr;
unsigned short Lo_Addr;
unsigned short CtlReg;
unsigned short H_size;
unsigned short V_size;
unsigned short AccBin;
unsigned short XDelay;
unsigned short CCDTemp;
unsigned short GainDark;
unsigned short Period;
unsigned short Tint;
unsigned short DualRatio;
unsigned short FIFOState;
unsigned short InfoReg;
unsigned short Data[32];
} param;

если написать sizeof (param) то под виндой вернёт 94 (что есть правильно).
а под линухом на ARM_е 96 (что странно по меньшей мере)... =(
GCC 3.3.5.
#pragma pack пробовал, не помогает...

Кто нибудь может сказать как такое может быть?

[r301]

попробуйте делать typedef отдельно от packed. Проверил на gcc version 3.3.1, sizeof(param) дает 94

Код

struct param_t
{
unsigned short Version;
unsigned short Hi_Addr;
unsigned short Lo_Addr;
unsigned short CtlReg;
unsigned short H_size;
unsigned short V_size;
unsigned short AccBin;
unsigned short XDelay;
unsigned short CCDTemp;
unsigned short GainDark;
unsigned short Period;
unsigned short Tint;
unsigned short DualRatio;
unsigned short FIFOState;
unsigned short InfoReg;
unsigned short Data[32];
} __attribute__((packed));

typedef struct param_t param;