You have two C files: main.c and utils.c. You compile them separately with gcc -c main.c and gcc -c utils.c. What is the correct command to create an executable named app linking both object files?

hard📝 Application Q15 of 15

C - Basics and Execution Environment

You have two C files: main.c and utils.c. You compile them separately with gcc -c main.c and gcc -c utils.c. What is the correct command to create an executable named app linking both object files?

Agcc main.o utils.o -o app

Bgcc main.c utils.c -c -o app

Cgcc -o app main.c utils.c

Dgcc -c main.o utils.o -o app

Step-by-Step Solution

Solution:

Step 1: Understand separate compilation
Compiling with '-c' creates object files (.o) without linking.
Step 2: Link object files to create executable
Use 'gcc main.o utils.o -o app' to link object files into executable named 'app'.
Final Answer:
gcc main.o utils.o -o app -> Option A
Quick Check:
Link object files with gcc -o app [OK]

Quick Trick: Link .o files with gcc -o executable_name [OK]

Common Mistakes:

Using -c flag during linking
Trying to compile .o files directly
Mixing source and object files incorrectly

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You have two C files: main.c and utils.c. You compile them separately with gcc -c main.c and gcc -c utils.c. What is the correct command to create an executable named app linking both object files?

Step 1: Understand separate compilation

Step 2: Link object files to create executable

Final Answer:

Quick Check:

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