Whenever you are doing some programming, you will be getting lot of errors. Myself have been in the same situation while programming.
When I was tried to write a code in C language (though I'm not a good programmer of C language), For my friend's sake I have tried some code.
The most frustrating error came in to picture, called "Segmentation Fault". Took help of google and no clue why I was getting the error.
What I have understand about Segmentation fault is
"Segmentation fault appears as if it is not easy to understand;
when your trying to access the memory that is not allocated by you ...
then segmentation fault appears after executing a.out"
Let me explain you with an example
int a; // Declare an array
printf("%d\n",a); // Then try to print the last+n location of the array where n>0
You will get segmentation fault error.
How to over come this?
There are different debuggers to locate the memory area where the segmentation fault occurred.
- 1.c // Your file name
- gcc 1.c -g // Then compile it
- gdb a.out // Type at the command prompt/console
- Now you will get a prompt >>>
- Type 'r'
- Give the required input
- It will locate the memory area where your trying to access the memory
- u is not allocate by u (it will give the lines in the program 1.c here segmentation fault has occurred )
You can rely on gdb about 70% and there are also other debuggers
for which you can refer to the book "Linux is a Nutshell"
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