if(f_mount(&myFAT,SD_Path, 1)==FR_OK) { HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_14); f_open(&myFile, “test1.txt\0″,FA_WRITE|FA_CREATE_ALWAYS); for(int i=0; i<1000;i++){ sprintf(msg,”%hu\r\n”,data[i]); f_write(&myFile,msg,10,&byteCount); } f_close(&myFile); HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_15); } 1 solved Writing stm32 ADC values to SD card
To pick out some key lines from you error In instantiation of ‘void std::swap(_Tp&, _Tp&) [with _Tp = Card]’: use of deleted function ‘Card& Card::operator=(Card&&)’ ‘Card& Card::operator=(Card&&)’ is implicitly deleted because the default definition would be ill-formed: non-static const member ‘const int Card::numFace’, can’t use default assignment operator You are trying to use std::swap with … Read more
What you’re doing in the below code is: making an int (paashaas), setting it to 0, then making another int (p), setting the value of the second int (p) also to 0, then keep checking the second int (p) in the while loop, while changing the first int (paashaas) every time. Because of this, you … Read more
The answer is: it depends. I’ll try to help you to reformulate your question: does it make any sense to return a function rather than computed result from another fuction? Then I would say: definitely yes (let me know if you’d like to know ehy, I’ll update this post). But the example you showed does … Read more
I think this is what you are looking for: #include <iostream> #include <string> #include <cctype> int main () { std::string input; bool valid; do { valid = true; std::cin >> input; for (char c : input) if (! std::isdigit( static_cast<unsigned char>(c) ) ) valid = false; } while (! valid); // Here the string is … Read more
It seems that this declaration: int scores[5]; Is incorrect. This creates an array with 5 numbers in it, indices from scores[0-4], however, you constantly refer to score[5], the sixth element of the array throughout your program. I recommend changing to int scores[6]; 2 solved Error when accessing array – stack around the variable ‘scores’ was … Read more
Create a class that contains both items, and then sort that list: class Item { public int Id {get;set} public string Text {get;set;} } var unsorted = new List<Item> { new Item{Id = 3, Text = “eg3”}, new Item{Id = 1, Text = “eg1”}, new Item{Id = 2, Text = “eg2”}, } var sorted = … Read more
You are adding two byte arrays in your ArrayList and trying to sort them. Since sorting is performed on a comparison basis… at runtime your application complains about a missing criterion for defining a priority between the two arrays. public class BytesComparer : IComparer { Int32 IComparer.Compare(Object x, Object y) { Byte[] left = (Byte[])x; … Read more
double weekly_sales[weeks][salespersons][days]; double total_weekly_sales[weeks]; Uninitialized. Edit: this is how you should initialize them: double weekly_sales[weeks][salespersons][days] = { { { 0.0 } } }; 5 solved Why is this NaN
Start with this: var lines = File.ReadAllLines(“<your path/filename>”); var stringBags = lines.Select(l => l.Split(‘|’)); var objects = stringBags.Select(b => new {Id = b[0], Name = b[1], SomeOtherField = b[2]}); This gives you a way to parse the file, and to project it into some sort of object you can deal with 2 solved How to … Read more
I would be tempted to use good old std::strspn like this: bool containsOnlyAllowedSymbols(const char* equation) { return std::strspn(equation, “0123456789+-*/()[]{}”) == std::strlen(equation); } 5 solved function for checking if a char array contains only allowed chars [closed]
Note, that std::min_element() returns an iterator to a minimal value, not the value itself. I doubt that you get this error based on the above code alone: assuming proper include directives and using directives the code compiles OK although it would print the address of the minimum element rather than its value. Most likely your … Read more
you can find a typical solution here ` #include<stdio.h> void swap(int *a, int *b); void segregateEvenOdd(int arr[], int size) { /* Initialize left and right indexes */ int left = 0, right = size-1; while (left < right) { /* Increment left index while we see 0 at left */ while (arr[left]%2 == 0 && … Read more
You’re trying to use float values as array indexer in the code fragments like: noise[x1, y1]. Array indexers can be only integers in .NET, but you’ve declared them as float x1, y1. 2 solved “Cannot Implicitly convert type ‘float’ to ‘int’” even when I’m not using any ints
Errors were not detected because either the warnings of your compiler are not enabled, being ignored or need for a better compiler. This code does not allocate space for data being read. Simplest solution: used fixed size arrays and limit user input. #include <stdio.h> int main(void) { char colorOne[80+1]; printf(“How many bands??\n”); … printf(“\n\nEnter your … Read more