DSP

字节对齐设置的两种方式

2019-07-13 18:11发布

站内文章 / DSP
9477 0 1026
#include #include #include #include #include #include #include #pragma pack (1) struct data { int i; int j; int k; char c; }; #pragma pack () #pragma pack (4) struct data2 { int i; int j; int k; char c; }; #pragma pack () struct data3 { int i; int j; int k; char c; } __attribute__((aligned(4))); struct data4 { int i; int j; int k; char c; }__attribute__((packed)); int main() { struct data dat; struct data2 dat2; struct data3 dat3; struct data4 dat4; int datt = sizeof(dat); printf("sizeof(dat) = %d ", sizeof(dat)); printf("sizeof(dat2) = %d ", sizeof(dat2)); printf("sizeof(dat3) = %d ", sizeof(dat3)); printf("sizeof(dat4) = %d ", sizeof(dat4)); return 0; }

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