Compilation process in C - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to include the standard input-output header.

C

#include [1]

int main() {
    printf("Hello, world!\n");
    return 0;
}

Drag options to blanks, or click blank then click option'

A<math.h>

B<stdlib.h>

C<string.h>

D<stdio.h>

Attempts:

3 left

💡 Hint

Common Mistakes

Including instead of causes undefined reference to printf.

Forgetting the angle brackets around the header name.

The <stdio.h> header is required for the printf function.

2fill in blank

medium

Complete the command to compile a C file named program.c using gcc.

C

gcc [1] -o program

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Aprogram

B-c

Cprogram.c

D-o

Attempts:

3 left

💡 Hint

Common Mistakes

Using the output file name instead of the source file.

Confusing the -o option with the source file.

The source file to compile is program.c. The -o option specifies the output file name.

3fill in blank

hard

Fix the error in the compilation command to generate only the object file.

C

gcc -o program.o [1] program.c

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A-c

Bprogram.o

Cprogram.c

D-o

Attempts:

3 left

💡 Hint

Common Mistakes

Placing -o before -c incorrectly.

Omitting the -c option when only compiling.

The -c option tells gcc to compile only and not link. It should come before the source file.

4fill in blank

hard

Fill both blanks to complete the compilation stages in order.

C

gcc -E [1] -o [2]

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Aprogram.c

Bprogram.i

Cprogram.o

Dprogram.s

Attempts:

3 left

💡 Hint

Common Mistakes

Using the object file .o or assembly file .s as output for preprocessing.

Confusing input and output file names.

The -E option runs the preprocessor on program.c and outputs the result to program.i.

5fill in blank

hard

Fill all three blanks to complete the compilation pipeline: preprocessing, compiling, and assembling.

C

gcc -E [1] -o [2]
gcc -S [2] -o [3]

Drag options to blanks, or click blank then click option'

Aprogram.c

Bprogram.i

Cprogram.s

Dprogram.o

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up file extensions for each stage.

Using object file .o instead of assembly .s for the compile output.

First, preprocessing program.c creates program.i. Then compiling program.i creates assembly program.s.