| Ex No | Pg No | Exercise | Solution | Solved by |
|---|---|---|---|---|
| 1 | 174 |
Rewrite the program cat from Chapter 7 using read , write , open
and close instead of their standard library equivalents. Perform experiments
to determine the relative speeds of the two versions.
|
Listing krx801 | Andrew Tesker |
| 2 | 178 |
Rewrite fopen and _fillbuf with fields instead of explicit bit operations. Compare
code size and execution speed.
|
No solution yet posted. | ---- |
| 3 | 179 |
Design and write _flushbuf , fflush and fclose .
|
Listing krx803 | Gregory Pietsch |
| 4 | 179 |
The standard library function
int fseek(FILE *fp, long offset, int origin)
is identical to lseek except that fp is a file pointer instead of a file
descriptor and the return value is an int status, not a position. Write fseek .
Make sure that your fseek coordinates properly with the buffering done for the other
functions of the library.
|
Listing krx804 | Gregory Pietsch |
| 5 | 184 |
Modify the fsize program to print the other information contained in the inode entry.
|
No solution yet posted. | ---- |
| 6 | 189 |
The standard library function calloc(n,size) returns a pointer to n objects
of size size , with the storage initialized to zero. Write calloc , by
calling malloc or by modifying it.
|
Listing krx806 | Bryan Williams |
| 7 | 189 |
malloc accepts a size request without checking its plausibility; free believes
that the block it is asked to free contains a valid size field. Improve these routines
so they take more pains with error checking.
|
No solution yet posted. | ---- |
| 8 | 189 |
Write a routine bfree(p,n) that will free an arbitrary block p of n characters
into the free list maintained by malloc and free . By using bfree , a user can
add a static or external array to the free list at any time.
|
No solution yet posted. | ---- |