Visual C++ :: SEH Handler Cause Compiler Warnings And Errors
Jan 24, 2014
I use a SEH handler in my code, like this:
__try
{
.. Some codes ...
}
__except(
EXCEPTION_EXECUTE_HANDLER
)
{
TRACE(_T("Exception"));
}
but get the following compiler errors:
1>e: est.cpp(3310): warning C4509: nonstandard extension used: 'CMyClass::Test' uses SEH and 'iterator' has destructor
1> e: est.cpp(3290) : see declaration of 'iterator'
e: est.cpp(3450): error C2712: Cannot use __try in functions that require object unwinding
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Jul 26, 2013
When I call stl sort with a vector in the following,
Code:
int main() {
vector<int> items;
sort(items.begin(), items.end(), greater<int>());
return 0;
}
It works. But if I call stl sort the same way with a list, there is compiler errors.
Code:
int main() {
list<int> items;
sort(items.begin(), items.end(), greater<int>());
return 0;
}
Why?
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Aug 31, 2014
I am trying to write a program that will take a list of integers from a file and write them to another text file. I've been banging my head at this for days trying to get it to compile as it is riddled with linker and compiler errors.
**************************header*************************
#ifndef LINKEDLIST_H
#define LINKEDLIST_H
#include <iostream>
using namespace std;
template <class T>
class linkedList {
[Code] ....
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Nov 6, 2013
I keep having problems with CMFCPropertySheets. I now have it embedded in a resizable dialog and the property sheet and page gets resized when dialog is resized all that is working fine.
Problem is OnSize is being called when the dialog is being resized NOT when it has finished resizing so the values reported in cx and cy is the old size not the size AFTER resizing. What could be causing this? Isn't OnSize call AFTER the size has been changed and OnSizing called WHILE the size is being changed?
I have a list control that needs to take up full rect in each page and when the dialog is maximized it stays at previous size even though the sheet and page have both maximized as they should.
I ran a trace on the OnSize even for both the sheet and page and OnSize is being called during the sizing and not after it has already been sized like it is supposed to.
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Oct 8, 2012
I have subclassed CFileDialog. I need to select both file and folder on certain case only. Suppose I have a folder selected and it is containing desired file type. Then in such situation, On clicking open button will not open the selected folder. But just close the CFileDialog with IDOK.
For doing this I need to provide my own implementation for Open button handler. I am not getting how I can do this.
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Dec 30, 2013
I know I can use -isystem path to mark a path as containing system headers which shouldn't be included when generating warnings, and this works, but it doesn't work when the warnings are generated by instantiating templates from the library in my source code. Is there any way to ignore these template-instantiation-generated warnings too?
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Sep 15, 2014
I have two menu items. When item 1 is disabled, I want item 2 to be disabled as well. In the OnUpdate handler of menu item 1, I have tried to use "t_pMenu = pCmdUI->m_pMenu;", "t_pMenu = pCmdUI->m_pSubMenu;" and "t_pMenu = pCmdUI->m_pParentMenu;" but I always get NULL t_pMenu. How can I achieve this purpose?
Code:
void CDummyView::OnUpdateMenuItem1(CCmdUI* pCmdUI)
{
if(m_bShowMenuItem1) {
pCmdUI->Enable(TRUE);
[Code]....
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Dec 15, 2012
I am asp.net C# developer. I decided to tackle C++, so I started today. This is probably something simple I am sure.
Code:
srand(static_cast<unsigned int>(time(0)));
int choice = rand() % NUM_WORDS;
string theWord = WORDS[choice][WORD];
string theHint = WORDS[choice][HINT];
[Code] ....
The error is happening on the last output operator, just before the jumble variable on the last line.The error is:
Code:
Intellisense: no operator"<<" matches these operands
operand types are: std::basic_ostream<char, std::char_traits<char> <<std::string
I understand what its saying, but jumble is a std::string
Here are my preprocessor directives and using statements
Code:
#include "stdafx.h"
#include <iostream>
#include <ctime>
#include <cstdlib>
using namespace std;
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Mar 18, 2014
I have a project that is essentially a hot pot of C/asm (naked functions etc). The code gets injected into another EXE. It works fine when compiled in Visual C++ 6 but when compiled in Visual Studio 2008 it compiles fine but falls over in use.
Are there certain settings I need to look out for? I have optimization disabled and as far as I can tell the command line options for compiler/linker are the same (given the differences).
I have opened both builds in IDA and the 2008 build has more import and offset jumps are in different places.
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Apr 3, 2014
I've been using VS2005 for many years without any problems. This morning I needed to rebuild a library called gdk-pixbuf which I've built many times before. It contains a source file called gdk-pixbuf-animation.c
If I build my Release version with Link Time Code Generation enabled I'm suddenly seeing the following error message:-
fatal error C1047: The object or library file '.Releaseobjgdk-pixbufgdk-pixbuf-animation.obj' was created with an older compiler than other objects; rebuild old objects and libraries If I disable Link Time Code Generation I see this error instead:-
fatal error C1900: Il mismatch between 'P1' version '20060201' and 'P2' version '20050411'
It only seems to affect this one project (and even then, only the Release build). I've even restored a backed-up version of the vcproj file but it's no different.
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Feb 4, 2014
I am trying to build a VC++ project in Visual Studio 2010. [URL] ....
This project has a dependency on openssl libraries. How can I successfully build this project? How to add third party libs/dlls in a project.
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Dec 4, 2014
I need to set signal handler for my process. As the signal is related with the process on system level I have faced the problem. My program consists several classes. They are connected together. But it doesn't metter in this case. The problem is that I need to access to member and methods of the class from my signal handler. For instance , I have class named Foo at it has some members and methods.
So from my handler I need to call its function and change members. I understand that compiler should know that this class instances will exist during all program execution. I have tried to set static member class Foo instance in another class , but this didn't solve the problem. How to correctly implement signal handling in such case.
Here is example of my code
class MyContainer {
private:
std::vector<Foo> container;
public:
int removeFromContainer(Foo* aFoo) {
[Code] ....
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Dec 4, 2014
I am writing my program on C++ language. I have one promblem. I need to set signal handler for my process. As the signal is related with the process on system level I have faced the problem.
My program consists several classes. They are connected together. But it doesn't metter in this case. The problem is that I need to access to member and methods of the class from my signal handler. For instance , I have class named Foo at it has some members and methods.
So from my handler I need to call its function and change members.
I understand that compiler should know that this class instances will exist during all program execution.
I have tried to set static member class Foo instance in another class , but this didn't solve the problem.
What is correct approach to do this. How to correctly implement signal handling in such case.
Here is example of my code
Code:
class MyContainer{
private:
std::vector<Foo> container;
public:
int removeFromContainer(Foo* aFoo) {
[Code] .....
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Apr 26, 2014
I have a situation where I am accessing an ASP.NET Generic Handler to load data using JQuery. But since data loaded from Javascript is not visible to the search engine crawlers, I decided to load data from C# and then cache it for JQuery. My handler contains a lot of logic that I don't want to apply again on code behind. Here is my Handler code:
public void ProcessRequest(HttpContext context) {
JavascriptSerializer jsonSerializer = new JavascriptSerializer();
string jsonString = string.Empty;
context.Request.InputStream.Position = 0;
using (var inputStream = new System.IO.StreamReader(context.Request.InputStream))
[Code] ....
I can call the function : getUserControlMarkup() from C# but I will have to apply some URL based conditions while calling it. The contentType.typeOfContent is actually based on URL parameters.
If possible to send JSON data to this handler then how to do that. I am trying to access the handler like this:
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Common.host + "Handlers/SideContentLoader.ashx?typeOfContent=1&UCArgs=cdata");
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
But its giving NullReferenceException in Handler code at line:
ContentType contentType = jsonSerializer.Deserialize<ContentType>(jsonString);
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Jun 9, 2014
I am programming with the Code::Blocks IDE and using the GNU GCC compiler. When I create an simple console application that uses strings it kind of glitches out, but here's the code:
#include <iostream>
#include <cstdlib>
#include <string>
using namespace std;
int main()
ered: " << x;
[code].....
What the output is:
Please enter a string of text: Hello World
You entered: Hello
Process returned 0 (0x0) execution time : 4.735 s
Press any key to continue.
Anyway I don't know why it removes what I typed after the space I put in between Hello and World.
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Mar 3, 2013
The first sample program that I am reading on the book has the following code:
Code:
* Demonstrates basic pointer use. */
#include <stdio.h>
/* Declare and initialize an int variable */
int var = 1;
}
[code]....
Is this a compiler error or is there a proper syntax for pointers using the gcc compiler?
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Sep 18, 2014
I have an issue. VS 2013 isn't recognizing objects that I've declared when I use class functions.I'm getting this error: "Line 14 and 15: Error C2228: left of '.asciiToFpc6' must have class/struct/union"...Here's the relevant code:
Source.cpp
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <string>
#include "fpc6.h"
[code].....
Additionally VS apparently doesn't like my bitwise operators in my class functions and doesn't think they're doing anything. It gives "warning C4552: ['|', '<<', '>>', '&'] : operator has no effect; expected operator with side-effect" for all of them, but it seems to me the code should work fine and actually accomplish things....
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May 29, 2013
Code:
activity = new Idle(this, NULL);
class Idle : public Activity {
private:
float mTimeInIdle;
public:
Idle() : mTimeInIdle(0) { }
Idle(Objects *actor, Goods *target) : Activity(actor, target)
{
}
Error 1 error C2514: 'Idle' : class has no constructors d:jackydocumentsvisual studio 2010projectsperfectsimperfectsimperfectsimObjectsObjects.h 43 1 PerfectSim
The activity = new Idle(this, NULL) line is located inside the Objects::Objects(...) constructor.
Would it be caused by some cyclic dependencies? How do I go about resolving it?
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Jun 11, 2014
I could not find anything I could understand on this, so I have heard that -O3 option may reduce the numerical accuracy of doubles. Is this true?
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Feb 11, 2014
I wrote this code as an assignment
Code:
#include<stdio.h>
#include<stdlib.h>
#include<time.h>
main(){
int story, age=0;
int ranColor, ranCar, ranItem;
[Code] ....
And my compiler keeps freezing/crashing. using Dec C++
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Sep 8, 2013
I'm working on this homework assignment where the program takes in the user's height in inches, weight in pounds, and age, then calculates their hat size, jacket size and waist size. The formulas for these are as follows:
Hat: (weight/height) x 2.9
Jacket: (height x weight)/288 then adjusted by adding 1/8 an inch for every 10 years over the age of 30 (The adjustment only takes place after a full 10 years, so there is no adjustment for 30-39, but there is for 40)
Waist: (weight/5.7) then adjusted by adding 1/10 of an inch for each 2 years over the age of 28 (the adjustment only takes place after a full 2 years, so no adjustment for 29, but there is for 30, etc)
I'm supposed to utilize functions for each of the three formulas.
There's a couple things I can't figure out.
1. Why won't the compiler recognize 2.9 and 5.7 as numbers?
2. How do I adjust the calculation for the jacket and waist based on age?
Here's what I've got so far:
#include <cstdlib>
#include <iostream>
using namespace std;
double hatSize(int weight, int height);
double jacketSize(int weight, int height, int age);
double waistSize(int weight, int height, int age);
[code]....
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Jul 7, 2014
I am using Eclipse to write C program. I download the CDT. However, I wrote the code but when I build it, I got an errors.
Make:*** No rule to make target all, Stop
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Jul 20, 2014
how to download and install gcc compiler?
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Jun 7, 2012
/*@out@*//*@null@*/char *string_read ( ) {
int ch , pos = 0;
char *string;
if ((string = (char *)malloc (STRING_SIZE*sizeof(char))) == NULL)
[Code] ......
Fresh storage string not released before return A memory leak has been detected. Storage allocated locally is not released before the last reference to it is lost. (Use -mustfreefresh to inhibit warning) string_read.c:6:7: Fresh storage string created
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Jan 28, 2012
Is there a way to check if a compiler has c++11 enabled?
I have a library and it has converters between std strings and the internal string type. I current have preprocessor surrounding the converters for u8string, u16string, and u32strings, but it requires the end user flip the switch manually. It would be nice if I could know at compile time without being told whether or not those types exist.
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May 2, 2014
As we know in the compilation stage, the compiler will instantiate a concrete type for a template, for example:
template<class T> void test(T m ) {
cout << m << endl;
}
int main() {
int kl = 0;
test<int>(kl);
}
In the main function, the compiler will try to have a int entry. Also we know that in the compilation stage, generally we have several steps: lexical analysis, syntax analysis, grammer analysis and intermediate language(IR).
So my question is: In which step is the instantiation done? Before IR or after IR?
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