C/C++ :: Debug Log Size Restrictions?
Dec 26, 2012
Iam creating one debug log in my c++ application through the below code.
file *log;
log = fopen("C:snmpApplicationlog.txt", "w");
iam writing the statements in to this log by using fprintf(). As the .exe where i have put this mechanism runs continuously,the size of log file is increasing gradually.
1)If there is any way to restrict the Log file size,if the file reaches the mentioned size,the file should be discarded and logging should be done in another file with the same name.
{OR}
2)Put a time interval,once after that interval is elapsed, a new log file should be created.
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Mar 23, 2013
I just spent 3 hours writing and debugging 37 lines of code. Is this normal or am I "below average" in coding abilities. I come from a C background and decided to write C++ code that I finally got right as shown below for the specific example:
Code: #include <iostream>
#include <fstream>
#include <string>
#define SPACE_SEARCH 10
using namespace std;
[code].....
I think it was more the learning along the way that consumed atleast 75% of my time for this specific case. But then again, I read that programming always entails learning along the way and so its somehow no excuse for the long time taken in this specific case.
So as a matter of interest, what pace do all of you operate on, on average? i.e. LOC/day, Debugs per day or any other indicator of productivity?
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Mar 20, 2015
I'm trying to step through the machine instructions of a c program. This program needs to be run with a -t flag.
This is what I tried
gdbtui
file prog
layout asm
start
stepi
When I try 'file prog -t' it doesn't work.
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Nov 27, 2012
Change the frame window size according to font size increases.
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Feb 1, 2013
I must take an old MFC project in VC++ 6.0 and make changes.
The problem is text size in screen is different from size in print preview.
for example with this font
Code:
CFont f50;
f50.CreateFont(100,0,0,0,FW_BOLD,0,0,0,DEFAULT_CHARSET,OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS,DEFAULT_QUALITY,FF_DONTCARE,"Frutiger LT Std 45 Light");
And this text
Code:
s=_T("Let's try to calculate the size of this text");
and with MM_LOMETRIC map mode
GetTextExtent() returns me:
On screen: (1595,99)
Ink printer + print preview: (1589,100)
PDFCreator + print preview: (1580,100)
comparing with screen size the height is bigger but lenght is smaller. I don't understand.
I can understand that different printers process the fonts in different way and then to have different lenghts. That's not the problem. The problem is I need to simulate in screen the same behaviour i will have on printer because these texts are being aligned in the document, and I don't want to see that the text si aligned different in text than in paper.
What can I do to render the text on screen with the same size I will have on the printer? Print preview is doing it. Should I change the font parameters? is something related with pixels per inch?
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May 22, 2014
I'm currently just trying C++ with SFML. So I've installe SFML 2.0 for Visual C++ 2010 Express 64 bit, and I get an error while trying to run the debug of my code.
//Libraries
#include <SFML/Graphics.hpp>
#include <iostream>
int main() {
sf::RenderWindow window(sf::VideoMode(1280, 720),"SFML Game1");
return 0;
}
And this is the result I'm getting when trying to run it
1
1>LINK : fatal error LNK1123: failure during conversion to COFF: file invalid or corrupt
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
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Oct 6, 2013
The breakpoints I am setting are not caught by the IDE. Any how I can recover that.
I used to know I can delete the sdf file and rebuild. Just to make sure...
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Jul 11, 2013
I get this error when i try to run this code for an inventory in debug mode in VS. But for some reason it works just fine in release mode.
void Push_Back_Item(Item *item){
for(int y = 0; y < InvSizeY; y ++)
for(int x = 0; x < InvSizeX; x ++){
auto Iter = ItemList.find(std::make_pair(x,y));
if(Iter != ItemList.end()){
item->SetDead(); // ERROR
}
}
}
This isnt the full code though but it still gives me the same error.
The only thing "item->SetDead()" does is to set a bool to true.
This is the map i get the iterator from
std::map<std::pair<int,int>,Item*> ItemList;
This have been bugging me for quite some time now.
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Feb 20, 2013
i've got an assigment that requires me to overload some operators and add some objects together.
I will show the code and explain as good as I can.
void SArray::operator+= (const SArray &obj)
{
Sphere * tmp_arr;
tmp_arr = new Sphere[obj.antalobjekt+this->antalobjekt]; //antalobjekt = //Gets amount of elements in the arrays.
[Code]......
m_arr is the inner array for storing elements, do ask if something is not clear enough. The copy constructor works, so i have not included it.
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Mar 3, 2013
How can we debug the multithreaded application in unix environment?
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Feb 18, 2013
I get this error when I'm attempting to delete an array. I'm new to dynamic arrays, and from what I have learned, arrays must be deleted after use. I plan on using this in a function later on, so deleting the array is a must.
Here's the error message: Debug Error!
HEAP CORRUPTION DETECTED: after Normal block (#154) at 0x007E55A0.
CRT detected that the application wrote to memory after the end of heap buffer.
Here's my code:
int main() {
//Declare variables
char persist = ' ';
int* primes = NULL;
int size2 = 0;
//Declare array
primes = new int[size2];
[Code] ....
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Dec 20, 2013
#include<iostream.h>
#include<conio.h>
#include<string.h>
#include<stdio.h>
class complex {
int real,imag;
[Code] .....
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Mar 22, 2014
I am trying to use MessageBox in OnInitialUpdate function but its giving me "Debug Assertion Failed Message"
File: f:ddvctoolscrt_bldself_x86crtsrcvsprintf.c
Line:244
I am using the following code:
Code:
void CRotateImageView::OnInitialUpdate() {
int k;char str[2];
CView::OnInitialUpdate();
CString szStr,szstr1;
[Code] .....
However when i am using the same code in OnDraw its working.
Code:
void Csprintf_sEGView::OnDraw(CDC* /*pDC*/) {
Csprintf_sEGDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
if (!pDoc)
return;
[Code] ....
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Sep 28, 2014
You place a breakpoint at one of locations within the message loop. But I want the breakpoint to trigger when I click on the application window, for example. But I can't, it went so fast so long as I switch from VS to the application program, the breakpoint is hitted again, then the application is frozen again. I don't know how to setup a conditional breakpoint.
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Sep 18, 2012
i changed my code from release to debug mode. when i try to debug it shows a dialog box that '... does not contain debug information press ok to continue"..
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Oct 10, 2013
I have a MFC Com Dll that has a CDialog. In the OnCreate event I create an ActiveX control. The dll is hosted inside an executable of mine. In this scenario everything works fine!
The dll is also called from an external executable and then a Debug Assertion in OCCSITE.cpp occurs when I create the ActiveX control. I suspect that in the executable there is no AfxOleInit. I spend some time with this problem and tried to CoInitialize, OleInitialize, AfxOleInitModule and even AfxOleInit in the dll. But all that does not change a thing. If I understand the mechanics then this is an intended behaviour and should be done in the host exe.
What I observed in the OCCSITE.cpp:
Code:
_AFX_THREAD_STATE* pState = AfxGetThreadState();
if (!pState->m_bNeedTerm && !AfxOleInit())
return hr;
In my executable m_bNeedTerm is 0 and in the external one (where the ActiveX does not work) it is -1. In AfxOleInit this is explained as a special flag to prevent the dll from doing an unnecessary OleInitialize. But as I said even if I call OleInitialize myself I get the Debug Assertion and the ActiveX is not visible.
Is there anything I can do to make the ActiveX control work in the external application? Obviously I cannot Change anything in the application...
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Mar 11, 2014
I am trying to run the code below but I receive the following error message :
Debug Assertion Failed!
Program: C:TestDebugTest.exe
File: c:program filesmicrosoft visual studio 10.0vcincludevector
Line:932
Expression:vector subscript out of range
Code:
#include <fstream>
#include <cstdlib>
#include <iostream>
#include <strstream>
#include <cstring>
#include <cmath>
#include <map>
#include "Swap.h"
#define SIZE_X 100
[Code] .....
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Jul 11, 2012
I'm trying to write a debug functions for my application so I can see all the values I like to. My goal is it looks like this:
Code:
void Debug(std::message, ...)
So that I can call it like this:
Code:
Debug("Error: %i, %i", 34, 35);
How I can work with %i, or if there are better solutions. This is what I've so far (not much), just a basic idea:
Code:
void Debug( std::string message, ...) {
va_list list;
va_start(list, message);
??? va_arg(list, ?? );
va_end(list);
// here message should contain everything and be ready for output ?
cout << message << endl;
}
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Jul 11, 2013
I was wondering why, in C, the sizeof of a struct is larger than the the sum of all the sizeofs of it's members. It only seems to be by a few bytes, but as a bit of a perfectionist I fine this a bit annoying.
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Aug 8, 2013
I'm not sure what I'm missing. It is supposed to input and display player's name and score, calculate the average score, and display the players who scored below average.
It simply doesn't work. All I get is a black screen. Debug spits out an exit code of 1073741510 (0xc000013a).
Code:
#include <iostream>
#include <string>
#include <iomanip>
using namespace std;
const int arSize = 100;
int inputPlayerData (string playerName [], int playerScore [], int &numPlayers);
[Code] ....
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Aug 1, 2013
I'm developing C++ application in visual studio 2012. I have couple of C++ projects in my solution. I have put some library paths in every project's properties ( i.e ,Config properties - > C/C++ - > Additional Include Directories and Linker - > Additional Include directories ).I developed in debug mode, if i change to release mode, all library settings gone.Is there any possibility to retain all settings when change to debug to release mode and vice versa ?
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Dec 31, 2013
I dumped all symbols into C:WindowsSymbols folder, It takes more than 2 minutes to load an application which really surprises me. Why and when should I use those symbols?
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Aug 10, 2014
This code compiles in release mode but I get this compile error in debug mode:
Error1error C2664: 'GetPrivateProfileStringA' : cannot convert parameter 4 from 'wchar_t [255]' to 'LPSTR'g:easywebstoreuploaderini.cpp45
Code:
CString CIniFile::getKeyValue(CString strKey, CString strSection) {
wchar_t ac_Result[255];
// Get the info from the .ini file
m_lRetValue = GetPrivateProfileString(strSection, strKey, _T(""), ac_Result, 255, m_strFileName);
CString strResult(ac_Result);
return strResult;
}
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Apr 14, 2012
In my program I open two files and write data into each, and close them. this is done in a while loop.
int main() {
while() {
myFile = fopen("file1.txt","w");
myFile2 = fopen("file2.txt","w");
// write data into files using fprintf() in a for loop
fclose(myFile);
fclose(myFile2);
}
}
However, after some iterations the fopen() for myFile2 fails.
Debug assertion failed!
Program....
File ......srcfprintf.c
Line 55
Expression (str != NULL)
I have not been ableto locate the bug in the code that is causing the failure.
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Jan 15, 2013
On fairly rare occasions, when attempting to debug one of my MFC applications on VS 2010, a compilation error is encountered, and instead of bringing up the customary Windows or MFC file with a arrow pointing to the problem, a disassembly appears with an arrow pointing to one of the assembler instructions.
Since Windows assembly language is hardly my forte, I do not know how to interpret the error. Furthermore, the Output usually indicates one or more 'first chance exceptions' but little more, and the Stack output usually quite sparse and often refers cryptically to some ntdll.dll!7c92a82c().
How can I better define the compile error?
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May 9, 2014
Debug Error
ProjectsFinal ProjectGrItemDebugGrItem.exe
R6010 - abort() has been called
I was going over this with a friend and it seems as though getline() is not reading anything in and thus throwing the abort error. I'm not sure why this is because I've included the textfile, with the correct name of course, in both the regular file location and the debug folder. I ask for user input and the user then inputs the name of the file they want, I do some required things behind the scenes and display the results for them in a cmd window. I've included pastebin files for both my header and cpp files because it is far to large for one post I shall, however, post the full code in the comments.
Quick Code
The problem occurs on line 159. I'm assuming once this line is fixed, line 163 will have the same problem.
// Read regular price
getline(nameFile, input, '$');
vectorList[count].regPrice = stof(input.c_str());// Casts string to a float
// Read sale price
getline(nameFile, input, '#');
vectorList[count].salePrice = stof(input.c_str());
Pastebin Links : [URL] ....
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