Is there any downside mixing Objective-C with C++ for iOS apps?

I'd like to use C++ since it's fast and more dynamically in memory reference.
Is there any downside mixing Objective-C with C++ for iOS apps?
When googled for info, I only found tutorials about how to let xcode compile Objective-C with C++.
Thanks for help.

hokanst wrote:
Both Objective-C and C++ are (more or less) extensions of C.
C supports manipulation of pointers and casting of pointers, this implies that both Objective-C and C++ will be able to manipulate C data like arrays, structs ...
Objective-C has classes like NSData to read/write blocks of bytes from/to file and to access ranges of bytes when the data is loaded into memory.
C++ probably has similar classes (I'm not well versed in C++ so I don't know).
If you want to look into using C++ you will probably want to look at Objective-C++, the link below has links to docs on how to use C++ with Objective-C:
http://stackoverflow.com/questions/3684112/what-is-objective-c
Thanks for the info, NSData does what I need.
A replied in the link also mentioned that he's using C++ in his application too. As long as I'm aware of memory management (prevent memory leaks, etc) as @disguise said, it should be fine.
@etresoft indeed, but C is the base language of ObjC, there are ways to deal with.

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BELOW IS A SCREEN COPY FROM REDDIT ABOUT SOMEONE WITH THE SAME PROBLEM WITH A VERIZON CELL PHONE
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Android OS: 0 MB foreground / 1.18 GB background
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all 13 comments
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[–]omgmrjmako/PA, deb/Carbon 3 points 1 year ago*
All I can think is your phone may have background downloaded an OTA update, and you'd then be prompted with something like, "As update to your Android system has been downloaded, would you like to install it now?"
I do find it very odd that the update would be 2.6GB. As a rough base, the CyanogenMod 10.1 firmware for your device is well under 200MB, so unless Verizon has a ****-ton of bloatware in the update, or it had to attempt to download multiple times for some reason, it may be a stretch.
But doing a little homework, it looks like the Verizon Razr Maxx was updated to 4.1 in late March. Maybe they're still rolling it out in waves? Have you gotten the update yet?
Edit: Aaaand I just noticed you appear to be running an AOSP-based ROM, which totally rules out a carrier update being sent out.
Edit2: If you want to live dangerously, you could try running:
#kill -9 12289
That 12289 is the PID listed in your screenshot. But don't run that without fulling understanding the kill command.
The ps command could also be of use, but probably not.
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[–]lechnito[S] 2 points 1 year ago
I can confirm that the phone is currently at 4.1.2 and that I wasn't prompted for an OTA update.The fact that both the Android OS and Reddit News processes were simultaneously using an extremely large amount of data is unlikely to be a coincidence...
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[–]omgmrjmako/PA, deb/Carbon 3 points 1 year ago
That is very curious that the spikes happened at the same time.I'm curious. It may have put at least some of that 2.6GB somewhere. You could use a data visualizer tool to see if you can find it, which may lead to more clues.
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[–]lechnito[S] 2 points 1 year ago
The largest directories are:
DCIM: Normal looking photos (90,825 KB)
Android: Primarily map cache data (64,846 KB)
If it was downloading content then it did not significantly save content to storage. It's not like I have anything particularly sensitive on the phone, but the idea that it was uploading a snapshot of my data definitely makes me uncomfortable.
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[–]omgmrjmako/PA, deb/Carbon 2 points 1 year ago
Yup, Digital Camera IMages and videos.Somewhere in /sdcard/Android would be my guess as to where a mysterious file would be downloaded, but if it's only 64MB, and mostly map data, I'd safely rule it out.I'm sorry, but I'm stumped here.Edit: I should mention I don't think this is malware, because unless a malicious app gained superuser access, any data it used would show under it's own apk in the data usage list, not Android OS.
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[–]mistrbrownstone 0 points 1 year ago
DCIM: Normal looking photos (90,825 KB)
Was it trying to auto-upload pictures or video to G+?I ******* hate that.
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[–]lechnito[S] 1 point 1 year ago
Although I'm not really up to speed with the Android platform, I come from a UNIX background so I feel comfortable running commands. How do I pull up a bash terminal? Do I need to root the phone first?
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[–]omgmrjmako/PA, deb/Carbon 2 points 1 year ago
There's a number of terminal emulators in the Play Store that work well. You don't need a rooted phone to get to the shell as your user, but any privileged command won't execute unless you can grant it permission from the Superuser app that is installed when you root the device. So you could probably do a ps -e, but not a kill -9.
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[–]lechnito[S] 1 point 1 year ago
Got it. I downloaded a terminal emulator but unfortunately those processes no longer exist.Does Android keep a generic log of system level events like /var/log/syslog?
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[–]omgmrjmako/PA, deb/Carbon 2 points 1 year ago
I don't think so, and I know you'd need superuser permission to read most of the files in /var/log anyway. I'm not super familiar with how Android does its logging, but I do know that the two files of interest are the logcat and dmesg.
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[–]sh0nuff 1 point 1 year ago
Want to mention here that using your settings to set your data cap (set it on your billing day), then you won't go over again.Those text messages are really unhelpful, as they send out well after the data has been used. Chances are good you hit close to the 2GB mark before you received the bulk of the messages.
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[–]kindofabuzz -4 points 1 year ago
Quit installing pirated apps.
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[–]lechnito[S] 1 point 1 year ago
That's definitely not the case here; both my PC and and Android phone are free from pirated apps.

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