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Check if one IEnumerable contains all elements of another IEnumerable
... bool result;
//Get the value
var list1WithValue = list1.Select(s => s.Value).ToList();
var list2WithValue = list2.Select(s => s.Value).ToList();
result = !list1WithValue.Except(list2WithValue).Any();
return result;
}
...
scanf() leaves the new line char in the buffer
...ing whitespace automatically before trying to parse conversions other than characters. The character formats (primarily %c; also scan sets %[…] — and %n) are the exception; they don't skip whitespace.
Use " %c" with a leading blank to skip optional white space. Do not use a trailing blank in ...
Pass complex parameters to [Theory]
...ssing a custom type as the Theory input which seems to be missing from the selected answer.
– J.D. Cain
Aug 28 '19 at 11:32
1
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Finding all possible permutations of a given string in python
...nt to generate all permutations from that string, by changing the order of characters in it. For example, say:
24 Answers
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When is CRC more appropriate to use than MD5/SHA1?
... inappropriate CRC hashes are for hash tables. It also explains the actual characteristics of the algorithm. The study also includes evaluation of other hash algorithms and is a good reference to keep.
The relevant conclusion on CRC for hashes:
CRC32 was never intended for hash table use. There...
Passing variable arguments to another function that accepts a variable argument list
...#include <stdio.h>
template<typename... Args> void test(const char * f, Args... args) {
printf(f, args...);
}
int main()
{
int a = 2;
test("%s\n", "test");
test("%s %d %d %p\n", "second test", 2, a, &a);
}
At the very least, it works with g++.
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std::string length() and size() member functions
....) and length() is to be consistent with most peoples' intuitive notion of character strings. People usually talk about a word, sentence or paragraph's length, not its size, so length() is there to make things more readable.
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How to prevent gcc optimizing some statements in C?
...ore by using the volatile type qualifier.
// Assuming pageptr is unsigned char * already...
unsigned char *pageptr = ...;
((unsigned char volatile *)pageptr)[0] = pageptr[0];
The volatile type qualifier instructs the compiler to be strict about memory stores and loads. One purpose of volatile is...
Simple example of threading in C++
...
// do stuff
}
void task2() {
// do stuff
}
int main (int argc, char ** argv) {
using namespace boost;
thread thread_1 = thread(task1);
thread thread_2 = thread(task2);
// do other stuff
thread_2.join();
thread_1.join();
return 0;
}
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How to create ENUM type in SQLite?
... answer. Unless the string is really short, I'm totally against it. 1 or 2 characters maximum.
– MPelletier
May 9 '14 at 21:34
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