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我的代码曾经工作过,但现在结构大小突然变为16字节。它曾经是13个字节。我最近从Xcode 4.2升级到Xcode 4.3.1(4E1019)。编译指示包(1)也没有__attribute__((aligned(1)))工作
#pragma pack(1)
struct ChunkStruct {
uint32_t width;
uint32_t height;
uint8_t bit_depth;
uint8_t color_type;
uint8_t compression;
uint8_t filter;
uint8_t interlace;
};
#pragma pack()
STATIC_ASSERT(expected_13bytes, sizeof(struct ChunkStruct) == 13);
我曾尝试使用unsuccesfully
#pragma pack(push, 1)
/* struct ChunkStruct { ... }; */
#pragma pack(pop)
我也曾尝试以下,但没有运气
struct ChunkStruct {
uint32_t width;
uint32_t height;
uint8_t bit_depth;
uint8_t color_type;
uint8_t compression;
uint8_t filter;
uint8_t interlace;
} __attribute__ ((aligned (1)));
如何在Xcode 4.3.1包装结构?