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strdup-free or delete

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What should we use on pointer returned by strdup. Should I use free or delete. I don't know what(new or malloc) has been used to allocate memory in strdup. Any idea?

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Boder is correct. In the future check the documentation for such functions as it should say which deallocation method to use.

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If it's possible to ask this question in your program (i.e. you're using C++), then you almost certainly shouldn't be using strdup() in the first place.

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