Error Reading Variable Cannot Access Memory At Address
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Cannot Access Memory At Address 0xffffffff
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Cannot Access Memory At Address 0x0 Gdb
Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, cannot access memory at address 0x1 helping each other. Join them; it only takes a minute: Sign up Error Reading Variable, Cannot Access Memory at Address X up vote 1 down vote favorite Probably just another silly pointer issue from a C newbie. Couldn't figure this one out though. It seems that somehow my stack frame is corrupted. The assignment seems mostly irrelevant, cannot access memory at address 0x8 but it's a fairly basic I/O exercises. Attempting to read in an array of structures with a single read (cannot use advanced I/O functions such as fread()). #include "A2_Phase2.h" void read_directory(Cdir directory[], int cnt) { int fd; char filename[] = "RandomStructDir.bin"; fd = open(filename, O_RDONLY, S_IRWXU); if (fd < 0) perror(strcat(filename, " failed to open.")); if (read(fd, &(directory[0].code[0]), sizeof(Cdir) * cnt) < 0) { perror(strcat(filename, " could not be accessed.")); } close(fd); } int binary_search(Cdir directory[], char *key, int l, int r) { int mid = (int) r / 2; if (strncmp(key, directory[mid].code, 3) < 0) return binary_search(directory, key, l, mid - 1); else if (strncmp(key, directory[mid].code, 3) > 0) return binary_search(directory, key, mid + 1, r); else return mid; } int main(int argc, char *argv[]) { int COUNTRY_COUNT = atoi(argv[1]); printf("%d", COUNTRY_COUNT); Cdir *directory = (Cdir *) malloc(sizeof(Cdir) * COUNTRY_COUNT); read_directory(directory, COUNTRY_COUNT); binary_search(directory, "ZWE", 0, 238); free(directory); } I receive this error via GDB: Program received signal SIGSEGV, Segmentation fault. 0x0000000000400940 in binary_search ( directory= here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more cannot access memory at address 0x4 about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping http://stackoverflow.com/questions/14484682/error-reading-variable-cannot-access-memory-at-address-x each other. Join them; it only takes a minute: Sign up (segfault) Error reading variable, cannot read variable at address X up vote 0 down vote favorite I'm trying to write code for the gas station problem, where you have a fixed number of cities(linear) and you want to get from one end to the other with as http://stackoverflow.com/questions/27368480/segfault-error-reading-variable-cannot-read-variable-at-address-x few stops as possible, stopping wherever necessary to refill your gas tank. This is my main function; the function for calculation I've left out for now. I keep segfaulting saying unable to access tank and arr during the call to solver(the function I'm using to solve). int main(void) { int tank; int cities; int ans; scanf("%d %d",&cities, &tank); int *arr; arr=(int *)calloc(cities,sizeof(int)); int *arr2; arr2=(int *)calloc(cities,sizeof(int)); int i; for(i=0;i Sign in Pricing Blog Support Search GitHub This repository Watch 174 https://github.com/openscad/openscad/issues/882 Star 1,375 Fork 398 openscad/openscad Code Issues 394 Pull https://forums.opensuse.org/showthread.php/415438-argc-Cannot-access-memory-at-address-0x0 requests 55 Projects 1 Wiki Pulse Graphs New issue Segmentation fault on Linux #882 Closed eddieparker opened this Issue Jul 21, 2014 · 2 comments Projects None yet Labels None yet Milestone No milestone cannot access Assignees No one assigned 2 participants eddieparker commented Jul 21, 2014 Running Openscad on a very simple model yields me a segmentation fault: Model: union() { cylinder(r=19,h=10, center=true); } Command line: openscad -o test.stl ACylinder.scad Running in gdb with symbols: GNU gdb (Gentoo 7.7.1 p1) 7.7.1 Copyright cannot access memory (C) 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later Development Programming/Scripting argc=Cannot access memory at address 0x0 Welcome! If this is your first visit, be sure to check out the FAQ. You will have to register before you can post in the forums. (Be aware the forums do not accept user names with a dash "-") Also, logging in lets you avoid the CAPTCHA verification when searching . Select Articles, Forum, or Blog. Posting in the Forums implies acceptance of the Terms and Conditions. Page 1 of 3 123 Last Jump to page: Results 1 to 10 of 26 Thread: argc=Cannot access memory at address 0x0 Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 29-May-2009,02:00 #1 roberto60 View Profile View Forum Posts View Blog Entries View Articles Explorer Penguin Join Date Jul 2008 Posts 232 argc=Cannot access memory at address 0x0 Hi I'm a self-trained C programmer getting in trouble finding a segmentation fault error. Debugging the program all seems coherent except the stack messages (i'm using gdb): Code: main (argc=Cannot access memory at address 0x0) to test this I wrote the following program: Code: #include Cannot Access Memory At Address Gdb Core
Fortran Error Reading Variable: Cannot Access Memory At Address