GCC Compiler Questions & Answers – Various Options – 3

1. The command “cpp sanfoundry.c > sanfoundry.i” will
a) create the expanded source code file sanfoudry.i for the source code file sanfoundry.c
b) append the content of the sanfoundry.c into sanfoundry.i
c) give an error
d) none of the mentioned
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2. Which option of gcc makes the compiler print out each function name as it is compiled, and print some statistics about each pass when it finishes?
a) -p
b) -P
c) -q
d) -Q
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3. The -Wextra option of gcc
a) is same as -w option
b) does not exist
c) enables extra warning messages
d) none of the mentioned
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4. Which gcc option undefines a preprocessor macro?
a) -U
b) -u
c) -undefine
d) none of the mentioned
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5. Pipes are used rather than temporary files for communication between the various stages of compilation in gcc when
a) -pipe option is used
b) -temp option is used
c) –disable -temp option is used
d) none of the mentioned
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6. The gcc option -Wunused warns when a _____ variable is unused aside from its declaration.
a) variable
b) function
c) macro
d) none of the mentioned
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7. Which one of the following is not true?
a) source codes can not be compiled with static libraries in gcc
b) -O is used for optimization in gcc
c) source codes can be compiled
d) none of the mentioned
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8. The command line options of gcc can also be read from a file with
a) @
b) $
c) #
d) none of the mentioned
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9. Which option of the gcc is used to warn is padding is included in structure?
a) -Wpadded
b) -Wpad
c) -Wpadding
d) None of the mentioned
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10. Which gcc option reports the cpu time taken by each subprocess in the compilation sequence?
a) -time
b) -cpu
c) -process
d) none of the mentioned
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