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Serializing, integer without libaries , getting weird results


Serializing, integer without libaries , getting weird results

By : George Saavedra
Date : November 21 2020, 07:01 PM
it helps some times I have an integer and I want to serialize it to binary file. I dont care about being cross platform. , In this code:
code :
char* ptr = avector.data();
int n = *ptr;
char* ptr = avector.data();
int n = 0;
memcpy( &n, ptr, sizeof(n) );
char* ptr = avector.data();
int n = 0;
std::copy(ptr, ptr+sizeof(n), (char*)&n);
char* ptr = avector.data();
int n = *(int*)ptr;


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subtracting integer python weird results

subtracting integer python weird results


By : rathode
Date : March 29 2020, 07:55 AM
Hope that helps The weired values are normal and should be correct.
This is because you are using floating point arithmetic. You can always limit the precision of the results, by, e.g., setting the number of digits that are used for the representation.
Weird XmlSerializer behaviour on serializing List after removing element from it

Weird XmlSerializer behaviour on serializing List after removing element from it


By : Armaun Rouhi
Date : March 29 2020, 07:55 AM
Hope that helps Use FileMode.Create instead of FileMode.OpenOrCreate. From the docs:
Mysql WHERE OR WHERE started with integer weird results

Mysql WHERE OR WHERE started with integer weird results


By : Yeo Yang
Date : March 29 2020, 07:55 AM
Does that help That is because MySql automatically converts the types whenever an operator is used with operands of different types (assuming that your id is an integer column).
See the official documentation:
code :
mysql> SELECT 1 > '6x';
        -> 0
mysql> SELECT 7 > '6x';
        -> 1
mysql> SELECT 0 > 'x6';
        -> 0
mysql> SELECT 0 = 'x6';
        -> 1
mysql> SELECT CAST(6 AS CHAR) = '6x';
        -> 0
mysql> SELECT CAST(6 AS CHAR) = 6;
        -> 1
Converting Binary to Integer in C++ returns weird results

Converting Binary to Integer in C++ returns weird results


By : Nitin Porwal
Date : March 29 2020, 07:55 AM
seems to work fine I'm trying to create a simple program to convert a binary number, for example 111100010 to decimal 482. I've done the same in Python, and it works, but I can't find what I'm doing wrong in C++. , The problem is that you converted this fragment of Python code
code :
else:
  digit = int(bit_number / exp % 10)
  digit = digit * (2 ** i)
  number += digit
else{
    if((e % 10) == 0){
        digit = 0;
    }
    else{
        digit = bin_number / (e % 10);
    }
    digit = digit * pow(2, i);
    number = number + digit;
}
else{
    digit = (bit_number / e) % 10;
    digit = digit * pow(2, i);
    number = number + digit;
}
for(int i = 0; i < number_length; i++){
    int e = pow(10, i);
    int digit = (bit_number / e) % 10;
    digit = digit * pow(2, i);
    number = number + digit;
}
Serializing with Yaml IEnumerable class results in weird output

Serializing with Yaml IEnumerable class results in weird output


By : user3424366
Date : March 29 2020, 07:55 AM
hop of those help? This is because types that implement IEnumerable<> are mapped to sequences, where each of the elements returned by the enumerable is serialized as one of the items of the sequence. But then each of the elements is itself an IEnumerable<> which means that it will also be serialized as a sequence.
This process ends-up emitting the same Entry multiple times. Because of that, the first time each Entry is serialized, it is assigned an anchor, and the next time the serializer encounters it, an alias is emitted to reference the initial occurrence of that entry.
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