Is there any plug-in or add-on available in eclipse to Check/(set own rules if any) C/C++ source code against a set of coding standards?
Please suggest............ .. ...
c++
Random numbers from -10 to 10 in C++
How does one make random numbers in the interval -10 to 10 in C++ ? srand(int(time(0)));//seed for(int i = 0; i < size; i++){ myArray[i] = 1 + rand() % 20 - 10;//this will give from -9 to 10 myArray2[i] =rand() % 20 - 10;//and this will -10 to 9 } ...
Why am I getting 'Heap Corruption'?
Please don't crucify me for this one. I decided it might be good to use a char* because the string I intended to build was of a known size. I am also aware that if timeinfo->tm_hour returns something other than 2 digits, things are going to go badly wrong. That said, when this function returns VIsual Studio goes ape at me about HEAP CORR...
Is there a way to specify the dimensions of a nested STL vector C++?
I know vectors can be constructed to a predefined size vector<int> foo(4); But is there a way to specify the dimensions of nested vectors? vector< vector<int> > bar(4); Lets say I wanted a vector of size 4 containing vector's of size 4... like a 4x4 multidimensional array of ints? ...
Odd behavior when recursively building a return type for variadic functions
This is probably going to be a really simple explanation, but I'm going to give as much backstory as possible in case I'm wrong. Advanced apologies for being so verbose. I'm using gcc4.5, and I realize the c++0x support is still somewhat experimental, but I'm going to act on the assumption that there's a non-bug related reason for the ...
Conversion char[] to char*
may be this is a sizzle question but please help void Temp1::caller() { char *cc=Called(); printf("sdfasfasfas"); printf("%s",cc); } char *Temp1::Called() { char a[6]="Hello"; return &a; } Here how to print Hello using printf("%s",cc); ...
how to know location of return address on stack c/c++
i have been reading about a function that can overwrite its return address. void foo(const char* input) { char buf[10]; //What? No extra arguments supplied to printf? //It's a cheap trick to view the stack 8-) //We'll see this trick again when we look at format strings. printf("My stack looks like:\n%p\n%p\n%p\n%p\n...
Is there a tokenizer for a cpp file
I have a cpp file with a huge class implementation. Now I have to modify the source file itself. For this, is there a library/api/tool that will tokenize this file for me and give me one token each time i request. My requirement is as below. OpenCPPFile() While (!EOF) token = GetNextToken(); process something based on this token...
Finding character in String in Vector.
Judging from the title, I kinda did my program in a fairly complicated way. BUT! I might as well ask anyway xD This is a simple program I did in response to question 3-3 of Accelerated C++, which is an awesome book in my opinion. I created a vector: vector<string> countEm; That accepts all valid strings. Therefore, I have a vector ...
C++ memory leak detecting method
I'm working on a project using many external library on windows. I got problem with memory leak: i detected many memory leaks by overriding operator new/new[] and delete/delete[]. The problem is i know how many memory blocks are leaked, but don't know where to find them, in overrided functions, i could log size and position of allocated ...
Flex/bison, error: undeclared
hallo, i have a problem, the followed program gives back an error, error:: Undeclared(first use in function), why this error appears all tokens are declared, but this error comes, can anyone help me, here are the lex and yac files.thanks lex: %{ int yylinenu= 1; int yycolno= 1; %} %x STR DIGIT [0-9] ALPHA ...
Is it illegal to statically link LGPL
IF you also provide an identical .dll based version, BUT not the object files? ...
Function-Local Static Const variable Initialization semantics.
The questions are in bold, for those that cannot be bothered reading a question in depth. This is a followup to this question. It is to do with the initialization semantics of static variables in functions. Static variables should be initialized once, and their internal state might be altered later - as I (currently) do in the linked qu...
How do I check the input data type of a variable in C++?
I'm currently started learning C++, but i've one doubt about how to check the data type of input variable in c++. #include<iostream> using namespace std; int main() { double a,b; cout<<"Enter two double values"; cin>>a>>b; if() //if condition false then cout<<"data entered is not of double type"; //i'm having troub...
Why do I have to specify pure virtual functions in the declaration of a derived class in Visual C++?
Given the base class A and the derived class B: class A { public: virtual void f() = 0; }; class B : public A { public: void g(); }; void B::g() { cout << "Yay!"; } void B::f() { cout << "Argh!"; } I get errors saying that f() is not declared in B while trying do define void B::f(). Do I have to declare f() explicitly i...
Basic MCrypt string encryption with password implementation in C++
What is the basic setup on the subject? Let say I have a QByteArray, and I need to encrypt it with simple password. And the application has to be portable to Linux, Windows and Mac. Do I have to include mcrypt.h and mcrypt.c in the QT project? And then decrypt it in another piece of code Just a very simple setup ...
Syntax proposition: readability of templated type declarations
I wonder if syntax as follows would be helpful in your opinion as a code readability improvent and self-commenting of code: std::map<std::string name, std::vector<int> scores> myMap; In this example it clearly says and no other comment is needed, what for we are using myMap variable. Looking forward to your opinions. ...
Array of datas returning issue, Overwriting
Hi, Please help me on this Here i want to save the converted data into new pointers. But everytime the data is overwriting with most recent data. Please check my code TCHAR nameBuffer[256]; //Globally Declared void Caller() { TCHAR* ptszSecondInFile= QStringToTCharBuffer(userName); TCHAR* ptszOutFile=QStringToTCharBuffer(Destinati...
Information about PTE's (Page Table Entries) in Windows
In order to find more easily buffer overflows I am changing our custom memory allocator so that it allocates a full 4KB page instead of only the wanted number of bytes. Then I change the page protection and size so that if the caller writes before or after its allocated piece of memory, the application immediately crashes. Problem is t...
How to make Nton in C++?
I need class, which cann't have more than N instances. How can i make it? ...