In the below code: final int a; a=2; byte b=a; // error: possible loss of precision Why do I get this error? Isn't a final variable compile time constant expression and hence implicitly narrowed...

I am trying to write a simple stateless sesssion bean but I have problem with narrow reference I give in lookup time. I got class cast exeption I use eclipse IDE my bean class package ...

In Java < 8, returning "unsafe" objects (objects or null), I was able to specialize return type in subclass: class A {} class B extends A {} interface Sup { A a(); /* returns A instance, or nul...

I am writing a unit test checking some binary data against an expected array. The expected array in question is just some series of bytes, doesn't matter specifically: char expected[] = {0x42, 0xd...

g++ 4.9.0 -O2 -std=c++11 template<class T> struct vec3 { T x, y, z; vec3() = default; vec3(const vec3<T> &other) = default; vec3(T xx, T yy, T zz) { x = xx; y = yy; z = zz; } ...

Consider this piece of C++11 code: #include <iostream> struct X { X(bool arg) { std::cout << arg << '\n'; } }; int main() { double d = 7.0; X x{d}; } There's a narrowing ...

I try to compile the following code with gcc and C++11 enabled: unsigned int id = 100; unsigned char array[] = { id % 3, id % 5 }; I get these warnings: narrowing conversion of ‘(id % 3u)’ fr...

The following int i = 0; double d{i}; gives an error (in clang) or warning (in gcc) of a narrowing conversion from 'int' to 'double'. I found it amazing that this is really narrowing, at least u...

This expression can be found in the Example in §8.5.4/7 in the Standard (N3797) unsigned int ui1 = {-1}; // error: narrows Given §8.5.4/7 and its 4th bullet point: A narrowing conversion is a...

Using the {} initializer in C++11 to initialize bool b = {2} yields the following warning message: warning: narrowing conversion of ‘2’ from ‘int’ to ‘bool’ inside { } [-Wnarrowing] However, usi...

for some reason I'm getting the following warning filename.cpp:99:53: warning: narrowing conversion of ‘sin(((double)theta))’ from ‘double’ to ‘float’ inside { } [-Wnarrowing] filename.cpp:99:66: ...

The following program compiles without errors or warning with gcc 4.8.1, -Wall -std=c++11: template<unsigned N> struct A{}; int main(){ A<1-2> a; (void)a; return 0; } clang 3.3 w...

The Standard at § 8.5.4/7 explains what a narrowing conversion is: A narrowing conversion is an implicit conversion — from a floating-point type to an integer type, or — from long double to double...

In it's current version, is it possible to use Bing's "Narrow By Date" feature when accessing it's API? I cannot find any information about how to narrow the results such that it only shows result...

Since switching on the C++0x standard in g++, I've started seeing 'narrowing conversion' errors, particularly when converting from an 'int' to a 'short' although I understand the error covers a muc...

I'd like to pass some numeric byte values via an initializer list a variadic template into an array. Is that possible? template < int N > struct a { char s[N]; template < typename ... A...

I find the narrow-to-region command useful, however it applies to the buffer and not to the current window. I'd like to have one window display a narrowed version of the buffer, while the buffer i...