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Questions - segmentation-fault

can't modify buffer from pointer to pointer in C

i'm trying to fill a buffer using read function. my code look like this: int open_read_file(char *path, char **buffer) { struct stat statbuf; int fd = open(path, O_RDONLY); int fc = 0; if (fd < 0)...
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Grainbox

c

pointers

segmentation-fault

buffer

Votes: 0

Answers: 1

Latest Answer

you should change somethings here: 1. char *buffer = NULL; -> char ** buffer = malloc(sizeof(char**)); 2. if (error_handler(argc, argv, &buffer) == 84) -> if (error_handler(argc, argv, bu...
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long.kl

Why is my pointer being initialized to 0x0?

I've been going through the K&R 2nd edition book and I've been stuck trying to get one of the examples to run properly. The code taken straight from chapter 5 in the book (with some random variabl...
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Hoswoo

c

pointers

null

segmentation-fault

Votes: 0

Answers: 1

Latest Answer

You need to pass valid addresses. Perhaps you just want: int main(void){ int x = 5, y = 10; int q, p; month_day(x, y, &q, &p); }
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William Pursell

Why does pthread_join crash (seg fault) at 306 Joins?

I'm playing around with creating a BUNCH of threads, just see learn a bit more about pthread. I've copied a program I found, and instead of making 1 thread, and joining it, it will create X threads, ...
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ParallelNewB

multithreading

segmentation-fault

pthreads

pthread-join

Votes: 0

Answers: 2

Latest Answer

I shouldn't be running out of threads: Note that this is a system-wide limit, so you could be running out of threads IF you have some other processes with many threads running. On my x86_64 system y...
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Employed Russian

why C++ recognizes an uninitialized raw-pointer as true?

Why the following code produces a seg-fault //somewhere in main ... int *pointer; if(pointer) cout << *pointer; ... But slightly changed following code doesn't //somewhe...
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M. Abdul Rehman

c++

pointers

crash

segmentation-fault

Votes: 0

Answers: 2

Latest Answer

Why C++ Recognizes an uninitialized Raw Pointer (or say a daemon) as true? The behaviour may appear to be so, because the behaviour of the program is undefined. Why the following code produces a SE...
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eerorika

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