string concatenation using streams returns junk

string concatenation using streams returns junk

By : user2948218
Date : November 14 2020, 04:48 PM
Hope this helps The char pointer returned by string::c_str() is only valid for the lifetime of the string (and only when it is not modified).
But stream.str() returns a temporary string object, which you need to store somewhere. Otherwise it will be destroyed after that exact statement you call that function.
code :
string result = stream.str();
return result.c_str();
return stream.str();

Share : facebook icon twitter icon
Java To iOS client streams reading junk characters

Java To iOS client streams reading junk characters

By : Hamza Chaudhry
Date : March 29 2020, 07:55 AM
around this issue rmaddy was right about the problem being how much I'm reading from the stream. Here's the code I'm using now, which no longer reads any junk characters.
code :
- (void)readFromStream{
int BUFFER_LEN = 512;

uint8_t *buffer;
NSUInteger length;
BOOL freeBuffer = NO;
// The stream has data. Try to get its internal buffer instead of creating one
if(![inputStream getBuffer:&buffer length:&length]) {
    // The stream couldn't provide its internal buffer. We have to make one ourselves
    buffer = malloc(BUFFER_LEN * sizeof(uint8_t));
    freeBuffer = YES;
    NSInteger result = [inputStream read:buffer maxLength:BUFFER_LEN];
    length = result;

if (buffer != NULL) {
    NSString *s = [[NSString alloc] initWithBytes:buffer length:length encoding:NSASCIIStringEncoding];
    if (s.length>1) {
        CLS_LOG(@"Read: %@",s);
        [self handleRecievedMessage:s];

// length bytes of data in buffer
if(freeBuffer) free(buffer);
PHP page returns junk instead of return string in objective-C

PHP page returns junk instead of return string in objective-C

By : Madhuri Dhiman
Date : March 29 2020, 07:55 AM
I wish did fix the issue. yes it's the right way, you have the same result on your NSLog as rigth click on your page and show source code. Your url index.php is in plain text and not interpreted by the server, is why you haven't "Hello, PHP!" as a result.
see php hello world tutorial : http://www.utexas.edu/learn/php/example1.shtml
code :
NSString *urlstr = [[NSString alloc] 
NSURL *url = [[NSURL alloc] initWithString:urlstr];
cpp string find() doesnt work as expected - returns big junk values

cpp string find() doesnt work as expected - returns big junk values

By : borun
Date : November 11 2020, 09:01 AM
I hope this helps you . What it return is size_t of npos of your string because it can't find your char or text. you can do this instead:
code :
std::size_t found = str.find("findme");

if (found != std::string::npos)
    std:cout << found << std::endl;
    std::cout << "String not found" << std::endl // If not found
Smalltalk Pharo String concatenation instead of streams

Smalltalk Pharo String concatenation instead of streams

By : Debabrata Chakrabort
Date : March 29 2020, 07:55 AM
this one helps. It complains because of the part t, i asString that is inside a collection loop (you can look at the actual implementation of the rule in the class RBStringConcatenationRule.
Normally string concatenation is discouraged because it's slower and more memory intense (IIRC about the memory).
code :
| list types |
types := #('a' 'b' 'c').
list := types flatCollect: [ :t | (1 to: 9) collect: [ :i | t , i asString ].
^ Heap withAll: list
AES Algorithm returns junk characters in the middle of my data string

AES Algorithm returns junk characters in the middle of my data string

By : user2036619
Date : March 29 2020, 07:55 AM
Hope this helps I take a data string = "AkhilRanjanBiharabcdefghijklmnopMovedtoChennai18", encrypt it first and then decrypt it. The string which I get back on decryption is "AkhilRanjanBiharÙ†+™¸„À–ýæó@Movedtoñhennai18" which is almost fine for the first 16 and final 16 characters, but the 16 characters in the middle are absolute junk. What can possibly be going wrong? , Your error lies here:
code :
encryptedStr = new String(encrBytes);
encryptedStr = new String(encrBytes, StandardCharsets.ISO_8859_1);
Related Posts Related Posts :
  • Vector of pointers: some clarification needed
  • scaling a bitmap without losing quality
  • How to evaluate a function directly?
  • QNetworkAccessManager: How to change post data at createRequest function
  • Returning std::move of a local variable
  • Is there a fast linear SVM library with a good C++ interface?
  • What is the purpose of name mangling in C++?
  • C++ Why the void function is not working eventhough I called it?
  • How the pointer and the pointer's adress can share the same memory adress?
  • error C2220: warning treated as error - no 'object' file generated
  • exception of strcpy function in c++ console program
  • How to access USB barcode scanner data directly from USB port using C/C++ without driver
  • Under which circumstances will std::vector.clear() call a destructor?
  • Template partial specialisation and dependent names
  • best way to share data between c codes
  • C++ ignores if statement conditions
  • How to set the argv[ ] to be case-insensitive in a Win32 Console Application?
  • How to fix error "clang: error: linker (via gcc) command failed with exit code 1 (use -v to see invocation)"?
  • C++ How do I print a .txt file verbatim?
  • Creating two dimensional array of class
  • How do I correctly use COMMTIMEOUTS with OVERLAPPED IO mode reading from a Serial port
  • An assert macro which expands to static_assert when possible?
  • How to write a copyconstructor for a class which has HANDLE as a member in win32 c++ application?
  • C++ saving info such as tree in a file
  • Transforming an expression template tree
  • How to overload an operator with multiple parameters like a + b + c?
  • C++ 11 with Raspberry Pi performances
  • Make a C++ class look like a numpy array using swig
  • Postfix incrementer overloading for nested enumerated types
  • Is there a tidy way of associating metadata with functions in C++
  • QObject::installEventFilter(): Cannot filter events for objects in a different thread
  • LNK2005 error with Zxing C++
  • C++ Doubly Linked List with Pointers: Object of class isn't constructed properly
  • Using a random string generator in c++ constructor
  • What should I use instead of void as one of the alternative types in an variant?
  • C++ return value from multithreads using reference
  • How to connect multiple TCP IP clients to same server port using c++
  • Defaul compiler generates the reference operator (In C++)?
  • Unable to change directory time stamp after using FILE_FLAG_BACKUP_SEMANTICS
  • vector handling displaying output
  • WSAGetLastError returns WSAENOTSOCK - Cause?
  • C++: How to overload pow for user type?
  • C++ using arrays as multidimensional despite initalising it as 1D with pointer
  • How negate std::is_integral for use in tag dispatch?
  • Retrieve serial number from USB memory (Windows environment c++)
  • g++ error: invalid preprocessing directive #INCLUDE
  • C++ What is the std::for_each() function parameter type?
  • C++: Read individual lines from text file, sort words alphabetically
  • Saving 'this' address into a variable
  • c++ command line arguments in ubuntu terminal
  • Convert "Cartesian coordinates" to "polar coordinates with respect to user specified origin"
  • In what order are local scoped objects destructed?
  • How to use SDL_MapRGB with SDL 2.0
  • how compiler and interpreter work in case of array declaration
  • GSL integration behaves strange
  • Cropping an image with OpenCV and C
  • Find the last line in text file and select the first 10 char and print to a new file?
  • Created many CCSprits but when triggering ccTouchBegan gives the last one allways
  • seekp and seekg don't work with fstream
  • Taking input in Sublime Text 3
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org