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I need an online sandbox for C so I can compile and run C on any computer easily, but my program requires me to link against the math library.
Can I use -lm on codepad or another online sandbox for C programming?
Not currently – since you can’t change the compiler options. From the about page, these are the compiler options currently in use for C:
However, you could always ask them to include
-lm:Also, as a commenter points out, It looks like the compiler at ideone.com links with the math library.