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When should I use malloc in C and when don't I?
...s malloc in one routine, stores the pointer somewhere and eventually calls free in a different routine.
A secondary reason is that C has no way of knowing whether there is enough space left on the stack for an allocation. If your code needs to be 100% robust, it is safer to use malloc because then...
Where are static variables stored in C and C++?
..."global and static" area :)
There are several memory areas in C++:
heap
free store
stack
global & static
const
See here for a detailed answer to your question:
The following summarizes a C++ program's major distinct memory areas. Note that some of the names (e.g., "heap") do not appear ...
Freeing up a TCP/IP port?
netstat -tulnap
shows me what ports are in use. How to free up a port in Linux?
11 Answers
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What does “zend_mm_heap corrupted” mean
...te past end */
memcpy(mem[5], "whatever", sizeof("whatever"));
/* free invalid pointer */
free((void*) mem[3]);
return 0;
}
The code above can be compiled with:
gcc -g -o corrupt corrupt.c
Executing the code with valgrind you can see many memory errors, culminating in a segmen...
Jar Mismatch Found 2 versions of android-support-v4.jar in the dependency list
I am trying to create 2 versions of an Android app (free/paid). I have an Android Library that contains files common to both. I created a new Android project and am trying to use the Library but get the error below:
...
What is memory fragmentation?
...
Imagine that you have a "large" (32 bytes) expanse of free memory:
----------------------------------
| |
----------------------------------
Now, allocate some of it (5 allocations):
----------------------------------
|aaaabbccccccddeeee ...
Composer killed while updating
...me micro VM lacking of memory, creating a swap file does the trick:
#Check free memory before
free -m
mkdir -p /var/_swap_
cd /var/_swap_
#Here, 1M * 2000 ~= 2GB of swap memory. Feel free to add MORE
dd if=/dev/zero of=swapfile bs=1M count=2000
mkswap swapfile
swapon swapfile
chmod 600 swapfile
#A...
Using custom fonts using CSS?
...generator to avoid too much effort converting.
You can find a nice set of free web-fonts provided by Google Fonts (also has auto-generated CSS @font-face rules, so you don't have to write your own).
while also preventing people from having free access to download the font, if possible
Nope, i...
How to filter logcat in Android Studio?
... answered Nov 13 '13 at 8:12
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In C#, how to check if a TCP port is available?
...enerally to connect to a socket how can I first check if a certain port is free on my machine?
19 Answers
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