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Memory Allocation
What will be the output of the program? #include
#include
int main() { union test { int i; float f; char c; }; union test *t; t = (union test *)malloc(sizeof(union test)); t->f = 10.10f; printf("%f", t->f); return 0; }
10
Garbage value
10.100000
Error
Correct Answer:
10.100000
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Memory Allocation
What will be the output of the program (16-bit platform)? #include
#include
int main() { int *p; p = (int *)malloc(20); printf("%d\n", sizeof(p)); free(p); return 0; }
What will be the output of the program? #include
#include
int main() { int *p; p = (int *)malloc(20); /* Assume p has address of 1314 */ free(p); printf("%u", p); return 0; }
Assume integer is 2 bytes wide. What will be the output of the following code? #include
#include
#define MAXROW 3 #define MAXCOL 4 int main() { int (*p)[MAXCOL]; p = (int (*) [MAXCOL])malloc(MAXROW *sizeof(*p)); printf("%d, %d\n", sizeof(p), sizeof(*p)); return 0; }
Assume integer is 2 bytes wide. How many bytes will be allocated for the following code? #include
#include
#define MAXROW 3 #define MAXCOL 4 int main() { int (*p)[MAXCOL]; p = (int (*) [MAXCOL])malloc(MAXROW *sizeof(*p)); return 0; }
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