I dunno. If you can't track down exactly where the crash is happening, it'll be very hard to tell anything... can you compile it with the '-ggdb' flag, then run it like this:
I also notice that, since you're using cout, your messages aren't necessarily getting printed when you think they are -- it buffers. If it crashes before the buffer is flushed, it won't get printed, even if the cout call happened first. Even explicit flushing doesn't seem to help that on some systems. Try fprintf instead:
stderr never buffers.
It also helps in debugging that fprintf is one single function call, while cout is as many function calls as there are << paramaters...
Last edited by Corona688; 05-20-2006 at 02:56 AM..
hi,
I have made a small C program that make use of malloc and free for processing bitmap images. when i try to run the program, I am getting a error something like
*** glibc detected *** free(): invalid next size (normal): 0x0000000000503e70 ***
I am not sure of which free() is causing this... (1 Reply)
I am using a structure defined as follows
struct gene_square
{
double *x;
double *y;
};I have class, with a member function which is a pointer of this type:
gene_square* m_Genes;I am allocating memory in the constructors like this:
m_Genes = new gene_square;
for (ii=0;... (1 Reply)
there seems not to be error in this segment. In some computers, it can work well. But in others, it will give a failure.
why it ocurrs and how to deal with it?
in a function:
if( *ver == NULL ) {
*ver = (vertex *) malloc(sizeof(vertex)); //this line
... (17 Replies)
Hi,
I am having a hell of a time getting this to work. So basically, I have opened a popen to run a program that is going to prompt an action to occur half way through, when it gets to this I need to create a separate process and do some stuff, then return to the original process. This works... (0 Replies)
*** glibc detected *** ./a.out: malloc(): memory corruption (fast):
Posted A minute ago
M trying to make multiway tree and dont know what happend when this part of code get executed:
01void ins(NODE *ptr)
02{
03 //working
04 if(ptr!=NULL)
05 {
06 SNODE *var=NULL;
07 var=(SNODE... (3 Replies)
Hello.
I'm looking for a quite "interesting" bug I'm using fortran 90, compiler gfortran and the main idea is for every time step I build a bin structure for search contact between particles, for this at the begining
TYPE :: circle_index
INTEGER(kind = 4) :: ind_p
TYPE(circle_index),... (1 Reply)
I am facing a problem of memory corruption. The loop runs for the first time but does not go through the second time. What could be the problem?
for(int z=0;z<2;z++)
{
fp=fopen("poly.dat","r");
/*do something which reads this file into a 2D array*/
fclose(fp);
... (10 Replies)
Currently I test a shared library vendor provided in linux , the following is the simple source :
#include <iostream>
using namespace std;
extern int test1();
extern int test2();
int main()
{
cout << "hello world" << endl ;
return 0 ;
cout << "Test 1" << endl;
... (6 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
I'm doing aproximation of derivative called five-point stencil. For every value of x, in interval , in step... (0 Replies)
Discussion started by: antonija
0 Replies
LEARN ABOUT REDHAT
dl
DL(3) Library Functions Manual DL(3)NAME
DL - generate logging messages in C and C++ using a debugger
SYNOPSIS
#include <DL.h>
DL(format,...)
DLG(guard,format,...)
DLH(handler,format,...)
DLP(param,format,...)
DLGH(guard,handler,format,...)
DLHP(handler,param,format,...)
DLGHP(guard,handler,param,format,...)
DESCRIPTION
The DL macro is used to print logging or debugging messages using a debugger. The nana(1) command generates a set of debugger commands
which are then sourced into gdb(1) to implement the logging. If you don't run the executable under gdb(1) then no tracing will occur. The
arguments are:
format,... - a printf(3) style argument list containing the message
guard - print only if the guard is true.
handler - the code that does the printing. Default: fprintf
param - a parameter to be passed off to the handler. Default: stdout
See nana.info for details on configuring the behaviour.
SEE ALSO nana-clg(1), nana(1), nana(3), I(3), DI(3), L(3), DL(3), Q(3) and nana.info.
The nana.info file is the primary documentation for this library.
AUTHOR
Phil Maker <pjm@gnu.org>
DL(3)