gcc bus error 10 Vichy Missouri

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gcc bus error 10 Vichy, Missouri

s2 = 0x%lx, i = 0x%x\n", (long unsigned int) s, (long unsigned int) s2, i); printf("s[0] = %c, s[1] = %c, *s2 = %c\n", s[0], s[1], *s2); } When you set It is the only part of C where you can copy an unspecified number of bytes with an assignment statement. Join them; it only takes a minute: Sign up Bus error: 10 error up vote 23 down vote favorite 10 Here is my code #import #import int main(int argc, It is just as catastrophic as a "real" bus error, since without this person's knowledge of how to maintain or even execute the research workflow, the entire system falls apart.

because it has disappeared (e.g. Join them; it only takes a minute: Sign up What is a bus error? free(str); There are other more elegant ways to do this involving VLAs (in C99) and stack allocation, but I won't go into those as their use is somewhat questionable. The address of an_int is stored in o1.Asking gdb for o1's value shows us:(gdb) info registers o1o1 0x2094a 133450An int is 4 bytes and you can easily see that the address

Oops. This is called ``type casting''. There is absolutely no warranty for GDB. You are reversing the string in place.

The st instruction is going to write the 42 into the an_int field of thing. I then iterate over this "array" to see how the system can interpret any four adjacent bytes as an integer. For example, sizeof(long) will return either 4 or 8, depending on how big a long is in your system. But if I rewrite the same code as: int main(void) { char *str; str="I am a good boy"; int i,j; char temp; int len=strlen(str); char *ptr=NULL; ptr=malloc(sizeof(char)*(len)); ptr=strcpy(ptr,str); for (i=0, j=len-1;

It is a 32-bit pentium 4 with 786MB of RAM running Debian. I have seen both. When that happens, the pointer's value is zero, and when you try to dereference it, you'll generate a segmentation violation, which helps you find the bug. Format For Printing -XML -Clone This Bug -Top of page Home | New | Browse | Search | [?] | Reports | Help | NewAccount | Log In Remember [x] |

Because we are passing pointers, no copies of the array are made. As a corollary, you can pass a struct as an argument to a procedure, and in C++ fashion, it makes a copy of the entire thing. Because if you wanted to allocate an array of ten of these using malloc(), you'd do the following: S1B *s; s = (S1B *) malloc(sizeof(S1B)*10); Now, suppose sizeof(S1B) is only 5. And shm_open says that it generates objects of size 0: The shared memory object has a size of zero.

We'll explore this more soon. To address bytes, they access memory at the full width of their data bus, then mask and shift to address the individual byte. What about &(s[1])? Type "show warranty" for details.

ADDENDUM To the commenter who asked about segfaults versus bus errors, that is a great question. I really don't know. Last modification: Tue Jan 13 13:12:09 EST 2015 TYPES in C In C, there are three kinds of types that variables can have -- scalars, aggregates, and pointers. Posted by John Graham-Cumming at 13:03 Email ThisBlogThis!Share to TwitterShare to FacebookShare to Pinterest Labels: pseudo-randomness 1 comment: Bart said...

Anyone Understand how the chain rule was applied here? How much is "a ladleful"? Animal Shelter in Java Compute the kangaroo sequence Word with the largest number of different phonetic vowel sounds In the United States is racial, ethnic, or national preference an acceptable hiring Take a look at endian.c #include typedef unsigned long UL; int main () { /* I used unsigned variables to shut up the compiler and to prevent preservation of negative

up vote 156 down vote favorite 49 What does the "bus error" message mean, and how does it differ from a segfault? What do I do when two squares are equally valid? Read their man pages to see their prototypes and include statements. Thus, in p3.c, there are 34 bytes of local variables allocated in the main() procedure -- 4 for i, 14 for j, 8 for ip, and 8 for jp.

I have to look at this more closely. You need to dynamically allocate space via the *alloc family of functions. Conference presenting: stick to paper material? I know what I'm doing." That's in p5.c: #include main() { int i; char j[14]; int *ip; char *jp; ip = &i; jp = j; printf("ip = 0x%lx.

strcpy(str, str2); // Always remember to free it. The second doesn't, as you make a copy of data and then modify it. It is possible for CPUs to support this, but this functionality is rarely required directly at the machine code level, thus CPU designers normally avoid implementing it and instead issue bus Will it cause mis-alignment errors on a fragile architecture.