supposing head is the index where you place a new value, when you push a value temp.head++;must be replaced by temp.head = (temp.head + 1) % BUFFER_LENGTH; to manage the length of the buffer. You also have to move the tail when the buffer is full. I do not understand why you push 1 value … Read more
You can use the ctypes module to do the conversion for you: sint32 = ctypes.c_int(uint24 + (byte << 24)).value This will give you a 32-bit signed integer. solved Converting uint24 and unsigned char to 32bit signed int with python struct
you can always declare if something is a struct even if you have declared it before. it doesnt make a difference in the output of the program. 5 solved Is this stucture an array of structs? [closed]
You cannot convert an integer bitpattern to a float by means of a cast. That just converts the integer to the nearest floating-point number, it does not re-interpret the bits as being a float. If it worked like you think, this: const float x = 512; would set x to 7.175E-43, which would not be … Read more
Since pointers are assigned in run-time and addresses are handed out in run-time, it makes no sense whatsoever to store/load a binary image containing pointers inside a file, because addresses will vary each time your program is executed. Therefore you cannot load this struct. You’ll have to re-write your whole program from scratch as it … Read more
void A_output(struct msg message) { struct pkt packet; […] packets[counter++] = (pkt*)&packet; This last line assigns the address of a variable with automatic storage duration (a local variable) to an object with static storage duration (a global). Once your function exits, the variable with automatic storage duration doesn’t exist anymore, therefore the pointer doesn’t point … Read more
You need to allocate memory for n before using it, something like: node n = new Node; 2 solved program compiles and runs but after sometime it stops working in cpp ,using typedef keyword [duplicate]
Okay to explain it in a more complete way. The most other guys had already wrote that you have to use ‘->’ when ever you have a pointer. But you could also do this with ‘.’, to do this you must respect the priority of the operators. We need the ‘*’ to get the content … Read more
form json pkg you can encoding and decoding JSON format package main import ( “encoding/json” “fmt” ) type Species struct { Human []Info `json:”human”` Animal []Info `json:”animal”` } type Info struct { Name string `json:”name”` Number string `json:”number”` } func main() { data := Species{ Human: []Info{ Info{Name: “dave”, Number: “00001”}, Info{Name: “jack”, Number: “00002”}, … Read more
Why does the difference emerge between this two codes in C: Array Implementation for Stack and Linked List Implementation for Stack? solved Why does the difference emerge between this two codes in C: Array Implementation for Stack and Linked List Implementation for Stack?
Try using this function that’s a variation of the standard binary_search(). It returns an iterator to the matching element (the ‘lowest’ one) if the value is found in the range, and an iterator equal to last (usually end()) when there’s no match: template< class ForwardIt, class T > ForwardIt binary_search_ex(ForwardIt first, ForwardIt last, const T& … Read more
The member function that you have defined (node(…)) is a constructor and lets the compiler know what to do when you create an object on type node. For example, in your code, you use this statement in your push function: t = new node(a, t);. Compiler has to know how to create a new node … Read more
As the error says, your use of ,string is invalid for your JSON input. Remove it: Name string `json:”name,omitempty”` ,string can be valid in a JSON tag, and it indicates that the number should be marshaled as a string literal. In the case of a value which is already a string, that means it expects … Read more
Why do I have to skip the month of february in the for loop and use mes->fevereiro[j] instead of mes->meses[1][j]? [closed] solved Why do I have to skip the month of february in the for loop and use mes->fevereiro[j] instead of mes->meses[1][j]? [closed]
Do exactly what the compiler told you to do, enable C++ 11 by passing -std=c++11 as an argument. solved storing values in a custom stuct creates compiler error [c++] [closed]