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[2014-10-13. : 4:38 am]  O)FaRTy1billion[MM] -- O.o that's weird. How do you get a memory leak from only reading the memory?[2014-10-13. : 4:37 am]  Dem0n -- I create the photo and print it, and after it prints, I get a memory leak[2014-10-13. : 4:37 am] O)FaRTy1billion[MM] -- Still occuring after removing the size--; in destroy_album and adding the size++; in add_photo_to_album?[2014-10-13. : 4:36 am]  Sacrieur -- for all rational and irrational numbers summed, the result will always be irrational[2014-10-13. : 4:36 am] O)FaRTy1billion[MM] -- you can set it to 0 at the end to try and remove the possibility of trying to do something with the album after it was destroyed[2014-10-13. : 4:34 am] O)FaRTy1billion[MM] -- Also when destroying the album, you might not want to decrement album size, because that will cause the for loop to terminate early[2014-10-13. : 4:34 am] Zoan -- Ahhh, I've got it! So the negation of the statement "For all rational and irrational numbers, their sum is irrational" is "There exists a rational and irrational number such that their sum is rational." jjf, you didn't show that the negation of the statement was false - you should that the statement "For all rational and irrational numbers their sum is rational" is false, but you would have to have shown that the statement "There exists a rational and an irrational number whose sum is rational" is false[2014-10-13. : 4:34 am] trgk -- FaRTy1billionFaRTy1billion shouted: yeah. Or you can just put a zero-width space in there What is zero-width space?[2014-10-13. : 4:33 am] O)FaRTy1billion[MM] -- Also, unrelated, but you have print_photo and destroy_photo and then proceed to not use them by copying their functionality elsewhere.  [2014-10-13. : 4:31 am] O)FaRTy1billion[MM] -- when you add photos to the album, you aren't incrementing album->size so it's overwriting the first photo every timeun[2014-10-13. : 4:31 am] Dem0n -- hm now that I'm reading that, I don't even think I need to change the album's size in the destroy_album() function[2014-10-13. : 4:29 am] O)FaRTy1billion[MM] -- As far as I know, I don't have a problem with leaky code ... Really my check is just open task manager, run the program, and then load/close/load/close a bunch of stuff over and over and see if the used memory goes up and never back down. [2014-10-13. : 4:29 am] trgk -- If i see 'safe_malloc : %d' and don't see 'safe_free : %d', then I found a memory leak.[2014-10-13. : 4:28 am] trgk -- they printed the address as it malloc/free to stderr, so I could that they match pair by pair as the program runs[2014-10-13. : 4:27 am] trgk -- I usually have created custom safe_malloc and safe_free functions to find leaks[2014-10-13. : 4:26 am] O)FaRTy1billion[MM] -- is there any other memory that is allocated but never deallocated?[2014-10-13. : 4:23 am] Dem0n -- there's a function that prints the Photo's description, so would I free the memory after the description has been printed? But what if I want to reprint that Photo's description?[2014-10-13. : 4:23 am] *jjf28 mind off*[2014-10-13. : 4:23 am] Dem0n -- But then I also have the Photo description whose memory is dynamically allocated, and I never free that, but I have no clue where I'd free that[2014-10-13. : 4:22 am] Dem0n -- I have a function that creates a dynamically allocates memory to create a Photo and returns it, and then I have a function that destroys the photo, so I just deallocate the memory for that photo there[2014-10-13. : 4:20 am] O)FaRTy1billion[MM] -- dunno. Where do you have mallocs, and is that memory freed?[2014-10-13. : 4:20 am] jjf28 -- comment out mallocs/recheck till it no longer occurs; brute force ftw[2014-10-13. : 4:18 am] O)FaRTy1billion[MM] -- because if you have "Waffles", strlen will return 7 when it really takes 8 bytes[2014-10-13. : 4:16 am] O)FaRTy1billion[MM] -- usually if I have a static array where I need the size of it it's defined with a #define[2014-10-13. : 4:16 am] O)FaRTy1billion[MM] -- I don't think I've ever done sizeof on a string or array. xD |
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