I'm working on some code that his target it recognize if the strings equal
Have two type of string - string 1 came from text file , string 2 came from server side from chat packet
i try very different options , this my last trying but nothing success the sentence not recognize has equal at all for example this string on text file "בדיקה" and the string that came from packet side is "בדיקה" too and still nothing equal
`
if(gSentenceEvent.IsRunning())
{
std::string s = lpMsg->message;
int Len = strlen(gSentenceEvent.RandomSentence);
std::string str;
str.assign(gSentenceEvent.RandomSentence, gSentenceEvent.RandomSentence + Len);
if (str.compare(s) == 0)
{
gSentenceEvent.SetRunning(false);
gNotice.GCNoticeSendToAll(0,0,0,0,0,0,gMessage.GetMessage(1130));
gNotice.GCNoticeSendToAll(0,0,0,0,0,0,gMessage.GetMessage(1127),lpObj->Name);
}
else
{
gNotice.GCNoticeSendToAll(0,0,0,0,0,0,"%s Try %s\n",lpObj->Name,s);
gNotice.GCNoticeSendToAll(0,0,0,0,0,0,"Answer Is %s\n",str);
}
}
`
if someone have any idea for solving the issue i will be happy to hear some ways that recognize it well
Thanks in advance !
trying convert the text for wstring as well but still nothing
when i check the hex value of both sentence even they equal
gNotice.GCNoticeSendToAll(0,0,0,0,0,0,"%.2X",lpMsg->message);
gNotice.GCNoticeSendToAll(0,0,0,0,0,0,"%.2X",gSentenceEvent.RandomSentence);
that really came different from example "בדיקהה 3" On both sides
ServerSide = 22B6970
TextFile = D9C0B0
Related
I'm working on Qt, however I have come across an issue which for the life of me I cant fix at all. I have tried many different combinations to my code, but it still hasn't given me the output I'm looking for. I am hoping someone can help me.
QStringList buffer_split = serialBuffer.split(","); // split the serialBuffer string, parsing with ',' as the separator
// Check to see if there less than 3 tokens in buffer_split.
// If there are at least 3 then this means there were 2 commas,
// means there is a parsed temperature value as the second token (between 2 commas)
if(buffer_split.length() < 3){
// no parsed value yet so continue accumulating bytes from serial in the buffer.
serialData = arduino->readAll();
serialBuffer = serialBuffer + QString::fromStdString(serialData.toStdString());
serialData.clear();
}else{
// the second element of buffer_split is parsed correctly, update the temperature value on temp_lcdNumber
serialBuffer = "";
qDebug() << buffer_split << "\n";
parsed_data = buffer_split[1];
}
The above solution has worked for me, in turn I am reading the values being sent over the serial port such as:
0,0,0,0,0,0
Above is how parsed_data is reading the information from the serial port, which is correct.
The issue I am having, is splitting that, then storing them in separate variables to start some if statements. so far I can't seem to get it to work.
If anyone can help me I would be grateful
Thank You
You don't need an extra parsed_data variable buffer_split stores them, all you just need int num1 = buffer_split[0].toInt(); int num2 = buffer_split[1].toInt(); ...
I am currently trying to learn c++, and I was informed that this website is a great place to start getting involved in.
I was just wondering if it were possible to retrieve multiple characters from a string rather then repeating multiple lines of code.
string lname = "";
char l = lname.at(0);
char a = lname.at(1);
A string is essentially a char array followed by a NULL character.
The string class reference guide will help you know what you can and cannot do with a string variable. You didn't provide enough details for us to thoroughly answer your question, but if you are looking for a substring, try using the ".substr" function in the string class.
For instance:
string tempString = "Hello, my name is brw59";
// at character 7 (starts at 0) print two characters
cout << tempString.substr(7, 2); // output == "my"
EDIT: Problem solved! Turns out Windows 7 wont let me read/ write to files without explicitly running as administrator. So if i run as admin it works fine, if i dont i get the weird results i explain below.
I've been trying to get a part of a larger program of mine to read a file.
Despite trying multiple methods(istream::getline, std::getline, using the >> operator etc) All of them return with either /0, blank or a random number/what ever i initialised the var with.
My first thought was that the file didn't exist or couldn't be opened, however the state flags .good, .bad and .eof all indicate no problems and the file im trying to read is certainly in the same directory as the debug .exe and contains data.
I'd most like to use istream::getline to read lines into a char array, however reading lines into a string array is possible too.
My current code looks like this:
void startup::load_settings(char filename[]) //master function for opening a file.
{
int i = 0; //count variable
int num = 0; //var containing all the lines we read.
char line[5];
ifstream settings_file (settings.inf);
if (settings_file.is_open());
{
while (settings_file.good())
{
settings_file.getline(line, 5);
cout << line;
}
}
return;
}
As said above, it compiles but just puts /0 into every element of the char array much like all the other methods i've tried.
Thanks for any help.
Firstly your code is not complete, what is settings.inf ?
Secondly most probably your reading everything fine, but the way you are printing is cumbersome
cout << line; where char line[5]; be sure that the last element of the array is \0.
You can do something like this.
line[4] = '\0' or you can manually print the values of each element in array in a loop.
Also you can try printing the character codes in hex for example. Because the values (character codes) in array might be not from the visible character range of ASCII symbols. You can do it like this for example :
cout << hex << (int)line[i]
In the below code i would like to also ignore the character ” . But after adding that in i still get “Mr_Bishop” as my output.
I have the following code:
ifstream getfile;
getfile.open(file,ios::in);
char data[256];
char *line;
//loop till end of file
while(!getfile.eof())
{
//get data and store to variable data
getfile.getline(data,256,'\n');
line = strtok(data," ”");
while(line != NULL)
{
cout << line << endl;
line = strtok(NULL," ");
}
}//end of while loop
my file content :
hello 7 “Mr_Bishop”
hello 10 “0913823”
Basically all i want my output to be :
hello
7
Mr_Bishop
hello
10
0913823
With this code i only get :
hello
7
"Mr_Bishop"
hello
10
"0913823"
Thanks in advance! :)
I realise i have made an error in the inner loop missing out the quote. But now i receive the following output :
hello
7
Mr_Bishop
�
hello
10
0913823
�
any help? thanks! :)
It looks like you used Wordpad or something to generate the file. You should use Notepad or Notepad++ on Windows or similar thing that will create ASCII encoding on Linux. Right now you are using what looks like UTF-8 encoding.
In addition the proper escape sequence for " is \". For instance
line = strtok(data," \"");
Once you fix your file to be in ASCII encoding, you'll find you missed something in your loop.
while(!getfile.eof())
{
//get data and store to variable data
getfile.getline(data,256,'\n');
line = strtok(data," \"");
while(line != NULL)
{
std::cout << line << std::endl;
line = strtok(NULL," \""); // THIS used to be strtok(NULL," ");
}
}//end of while loop
You missed a set of quotes there.
Correcting the file and this mistake yields the proper output.
Have a very careful look at your code:
line = strtok(data," ”");
Notice how the quotes lean at different angles (well mine do, I guess hopefully your font shows the same thing). You have included only the closing double quote in your strtok() call. However, Your data file has:
hello 7 “Mr_Bishop”
which has two different kinds of quotes. Make sure you're using all the right characters, whatever "right" is for your data.
UPDATE: Your data is probably UTF-8 encoded (that's how you got those leaning double quotes in there) and you're using strtok() which is completely unaware of UTF-8 encoding. So it's probably doing the wrong thing, splitting up the multibyte UTF-8 characters, and leaving you with rubbish at the end of the line.
I have an std:string. I would like to find the pattern "0x789c" in hexadecimal.
According another thread in stackoverflow, i have done this :
int nPosD = buffer.find("\x78\x9C");
and tried
int nPosD = buffer.find(std::string("\x78\x9C"),2);
No success !The return is -1 !My pattern 0x789c is in my string ! I have tested it with HexEdit software.
Anyone have idea for this ?
Thanks a lot :)
best regards,
int nPosD = buffer.find(std::string("\x78\x9C"),2);
will look for the string "\x78\x9c" starting at the 3rd character (offset 2) in buffer. If it does not appear at or after that point, it will return -1. If you want to search the entire string from the beginning, get rid of the 2
The following works for me:
char data[] = {'A', 0x78, 0x9C};
string buffer(data, 3);
cout << buffer.find("\x78\x9C") << endl;
It prints "1" as it should. It works as well without the initial A. You have probably set your string wrong. It may contain '0x789c' in ascii instead of binary, in which case you want to do find("0x789c").