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char T[300];
struct st { short i1,i2; char c1,c2; short i3,i4 ;};
struct st S1 = { 0x1111, 0x1111, 0x11,0x11, 0x1111, 0x1111} ;
struct st S2 = { 0x1111, 0x1111, 0x11,0x11, 0x1111, 0x1111} ;
struct st S3 = { 0x1111, 0x1111, 0x11,0x11, 0x1111, 0x1111} ;
struct st S4 = { 0x1111, 0x1111, 0x11,0x11, 0x1111, 0x1111} ;
void misaligned_struct() {
Frama_C_show_each_1 (S1.i1 == *(short*)&S1.c1); // ok
*( (char *)&S1.i1)= 0x11;
Frama_C_show_each_2 (S1.i1 == 0x1111); // To do
Frama_C_show_each_3 (S1.i1 == S1.i2); // To do
Frama_C_show_each_4 (*(char *)&S1.i1 == S1.c2); // OK
*( (char *)&S2.i1)= 0x11;
*(1+(char *)&S2.i1)= 0x11;
Frama_C_show_each_5 (S2.i1 == 0x1111); // ok
Frama_C_show_each_6 (S2.i1 == S2.i2); // ok
Frama_C_show_each_7 (*(char *)&S2.i2 == S2.c2); // OK
Frama_C_show_each_8 (*(char *)&S2.i2 == *(char *)&S4.i2); // OK
*(1+(char *)&S3.i1)= 0x11;
*( (char *)&S3.i2)= 0x11;
*(1+(char *)&S3.i2)= 0x11;
*( (char *)&S3.i3)= 0x11;
*(1+(char *)&S3.i3)= 0x11;
*( (char *)&S3.i4)= 0x11;
*( (char *)&S4.i1)= 0x11;
*(1+(char *)&S4.i1)= 0x11;
*( (char *)&S4.i2)= 0x11;
*(1+(char *)&S4.i2)= 0x11;
*( (int *)&S4.c1)= 0x1111;
*( (char *)&S4.i3)= 0x11;
*(1+(char *)&S4.i3)= 0x11;
*( (char *)&S4.i4)= 0x11;
*(1+(char *)&S4.i4)= 0x11;
Frama_C_show_each_9 (S3.i1 == S4.i1); // To do
Frama_C_show_each_a (S3.i2 == S4.i2); // ok
Frama_C_show_each_b (S3.i3 == S4.i3); // ok
Frama_C_show_each_c (*((char *)&S3.i2) == *((char *)&S4.i2)); // OK
Frama_C_show_each_d (S3.c1 == S4.c2); // OK
Frama_C_show_each_e (*((char *)&S3.i2) == S4.c1); // Ok
Frama_C_show_each_f (*((char *)&S3.i1) == S4.c1); // Ok
}
void main(int c1, int c2) {
*(int*)(&T[0])=c1?1:2;
*(int*)(&T[4])=c2?1:2;
T[1]=T[5];
*(int*)(&T[8])=*(int*)(&T[4]);
misaligned_struct ();
/* for(i = 0; i < 36800; i++) {
T[i] = 33;
}
*/
if (c1) Frama_C_show_each_g (S1.i1 == *(short*)&S1.c1); // to do
}
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