Mudit Kapoor
Reputation: 381
Meaning of the g++ flags "-Wall", " -W", and "-Werror"
What are these and what do they do?
- -Wall
- -W
- -Werror
I am using the terminal in Ubuntu to compile programs with this command:
g++ -Wall -W -Werror main.cpp -o exec
What is the explanation?
Upvotes: 25
Views: 36268
Answers (1)
usr1234567
Reputation: 23422
-Wall: enable a set of warning, but actually not all.-W: enable extra warnings. It's advised to use-Wextrainstead which has the same meaning-Werror: every warning is treated as an error.
See GCC documentation: 3.8 Options to Request or Suppress Warnings
Upvotes: 49
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