> If your code lacks the declaration of the function, the compiler will assu... | Hacker News

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		cliffbean on March 9, 2013 \| parent \| context \| favorite \| on: Some dark corners of C > If your code lacks the declaration of the function, the compiler will assume pre ANSI-C semantics and generate code returning an int. Better, please help by compiling your C code with -Wimplicit-function-declaration (included in -Wall), and fixing all the problems it reports. Then you won't have to worry about this problem, or a bunch of other problems.

wuest on March 10, 2013 [–]

All-too-common response: "Oh, but they're just warnings mumble compiles and runs 'cleanly' mumble..."

duaneb on March 10, 2013 | [–]

    -Wall -Wextra -Werror

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