I am having problems with converting a CString to an int and than doing checks on the int to see if it is in a particualr range.Below is what I am doing.
CString numstr = "28" int num = atoi(numstr); BOOL valid = TRUE; if(num < -32,768 { valid = FALSE; }
For some reason when running the above code the if statement is executed but it should not be becasue 28 is not less than -32,768. Why this is happening, I am not seeing the reason for this at all!! The num variable is being assigned the correct value.
I have saved the contents of an int vector to a txt file and the numerical data was converted into a c-string. Nov I need to import and read the contents back into my program but I have not been able to convert c-string numerical data back into ints.
This part of the code i suppose to get generate all possible combination of number and numbers and combination can't repeat. There 6 set of numbers the first 5 can't repeat, here is what I have so far. Its not efficient and is time consuming for my PC. probably will take upto 10 minutes to complete.
#include <iostream> // std::cout #include <algorithm> // std::next_permutation, std::sort int main () { int myints[] = {1,2,3}; std::sort (myints,myints+3); std::cout << "The 3! possible permutations with 3 elements:
[Code] ....
this will result
123 132 213 231 312 321
The question is : If I want to get a permutation combination with range of N
What should i do?
if N = 2 result should be 12,13,21.....such and such
Eliminate the last digit is working for 3 combination but if its going to a bigger number it does not work ...
I have been struggling with this program. I am somewhat new to c and suck at logic. I have a personal program I want to make that I will try to get extra credit for in school. I have a printed set of winning lottery numbers form the last 10 years. I chose the easiest one do do logically which is just 5 numbers none repeating.
I am trying to find out how I can print the least common 10 sets. I think if there are any set which have not been picked I would have to print all of those because logically they would all be equal, then print sequentially the sets least picked up to 10.
I have pseudocode which I am sure is wrong but will post it just to show that I am trying. My first attempt was to add the numbers but quickly realized that that wouldn't work ...
5 Nums Pseudocode Code: Read Nums Parse Into Ints Make Array [185] //39+38+37+36+35 The highest the numbers added together can go
Im about to program a RPG and, of course, the player has got an inventory. The items in this inventory are stored in a linked list and have IDs in form of strings.
player.cpp: (just the most relevant)
#include <list> #include <string> using namespace std;
[Code] ....
Of course, when the player saves the game, the inventory has to be saved too.
game.cpp(just the m. R.) #include <fstream> using namespace std; class CGame{
[Code] .....
Now, in my code I write the linked list into the file savegames.sav
I want to select 1 element from each vector without duplication of any combinations. Essentially only when all combinations are done with 1st element in first vector ,only then it should move to next element in first vector.
Say i have elements :[123] [456] [789]
my combinations should be like 147 148 149 157 158 159 167 168 169 247....
Also, I cant have any repetitions and only after all combinations of 1 are done only then the loop has to move to next combination ie 247 combination and so on.
I tried NCK (n choose k) command but it gave me random combinations. How should i go about it with using minimal for loops?
I am trying to convert a char to a CString, I have tried to use the CString.Format method but didn't work. I have a char(char holder[10]) and I want to see if holder is a certain string, say for instance SeaLevel. Below is the code that I also tried.
Let's say I have unsigned char test[10] = "HELLO!!!"; How would I go about circularly shifting this to the right? Inline assembly instructions would be ok too
I dont see any point of NULL in cstring. The code given below just outputs same as it would have done with NULL. My understanding is if size of char array is less than length of char array then null must be manually added?
#include <iostream> using namespace std; int main(){ char chr[0]; cin>>chr;//or if you use cin.getline; cout<<chr<<endl; return 0; }
Enter something: hellowwwww hellowwwww Segmentation fault (core dumped)
I want to read a string of unknown length from stdin. I tried to follow the approach from this link.
[URL]....
My code is like this:
Code:
#include <iostream> #include <string> using namespace std; int n; cin >> n; cout << "The value of n is " << n << endl; string str; getline(cin, str); cout << "The entereed string is " << str << endl;
What I have noticed is that if I take integer input from cin (cin >> n in the above code before getline, the control does not stop on getline to take str as input from the console. If I don't do (cin >> n) before getline then the control stops on getline and takes the string as input.
What is the best way to read from console multiple strings of unknown length in combination with the integers?
Why would the following line of code cause an exception and how can I fix it? This is with Visual Studio 2013 and it is set to use "Multibyte Character Set". This is a very old program that I was updating.
Code: thepath = dadir + "*.csv";
Both dadir and thepath are type CString.
Prior to this line dadir looks fine when I look at it in the debugger but when I reach this line of code I get
First-chance exception at 0x0FA08EE1 (mfc120d.dll) in GAQUtilities2014.exe: 0xC0000005: Access violation reading location 0xFEFEFFC6.
I have a non-MFC static library which I share between a number of different projects, some non-MFC and some MFC. Currently the static library uses a typedef of std::wstring and std::string for UNICODE and non-UNICODE builds.
After discovering it's possible to use CString in non-MFC applications, by including atlstr.h header, I decided I'd rather that than using stl strings and having to keep converting between the different types. However, I seem to be struggling with linker errors when linking the library with a MFC application.
Can I create a non-MFC static library using CString from atlstr.h and link it with a MFC application?
How do I detect garbage chars in a CString. Actually I'm reading some data from COM port. In some certain condition it will give some garbage as a version no. Now I need to show _T("N/A") in case of there is any garbage.
My solution is to check for a Valid char or integer. If found its correct else Garbage.
Write a function named replaceSubstring. The function should accept three C-string or string object arguments.
Let's call them string1, string2, and string3. It should search string1 for all occurrences of string2. When it finds an occurrence of string2, it should replace it with string3.
For example, suppose the three arguments have the following values:
string1: "the dog jumped over the fence" string2: "the" string3: "that"
With these three arguments, the function would return a string object with the value "that dog jumped over that fence." Demonstrate the function in a complete program.
But the output rows are not aligned as shown in the attached picture. There a two problems.
1. Data rows don't align with the header row. 2. When the first element of a row changes to two digits, the other elements are shifted.
According to MSDN [URL] ...., CString::Format() works the same way as printf(). I wrote a small program using printf() to do the same thing, and the output in the console are perfectly aligned.
From my tests I found the problem to be somewhere in the Mantissa part that converts it to binary.
bool xsDLL GetHexFromSF_IEEE754( void* to, Text from, ui08 tSize ) { from.UpperCase(); int db = 0, dB = 0, dBEnd = tSize, dBLast = ( tSize - 1u ), dbEnd = dBEnd * 8; ui08 *data = reinterpret_cast< ui08* >( to ); for ( ; dB >= 0; --dB ) data[ dB ] = 0u;
[Code] ....
Adjustments made, still having problems though. After finding a more useful resource [URL] ..... I got the function looking more like it should but am still having problems...