Question

UUUPSS 10. (5 pts.) Can different files in a "working directory" under Subversion control have differ ent version numbers? Yes 11. (5 pts,) Within the context of the Make program, what is a "phony target"? A set of comments to b executed, when a speerte request is mache, not a real 12. (5 pts.) Under what conditions should single-precision arithmetic be used in computer Rite programs, despite the instruction found in some textbooks to always use double precision? 13. (10 pts.) Here are two lines from a makefile: main.o: main.c helper.h gcc main.c What action(s), if any, will be taken by the make program upon reading the above 2 lines in a makefile?

Answer 1

10)

Yes

Reason:

Until unless the changes of a file are committed in a subversion control system the file version is not changed, if there are two files and changes to one file is committed and updated then it will have a new version but another file will have the old version.

11) Phony Target:

The phony target is not the real name of a file, it is the name of the command to be executed when an explicit request is made.

Ex:

.PHONY: clean
clean:
        rm *.c file

13)

given make file

main.o: main.c helper.h

gcc main.c

the above make file will first link the files main.c and helper.h which are required for execution

gcc main.c will compile the main.c file