大约有 23,000 项符合查询结果（耗时：0.0318秒） [XML]
How do I install Python packages on Windows?
...the only one that worked for me. My environment - Python 3.3.1 , Windows 7 64bit, x64 PC. if possible, please upvote this, saves ppl a lot of trouble.
– Quest Monger
May 10 '13 at 1:54
...
What does static_assert do, and what would you use it for?
...t;typename T, typename U>
struct Type
{
BOOST_STATIC_ASSERT(boost::is_base_of<T, Interface>::value);
BOOST_STATIC_ASSERT(std::numeric_limits<U>::is_integer);
/* ... more code ... */
};
This will cause a compile time error if any of the above conditions are not met.
...
Where does gcc look for C and C++ header files?
...og-name=cpp) -v (correctly) gives one more path, which is /usr/include/x86_64-linux-gnu
– wlnirvana
May 6 '16 at 15:10
3
...
What causes java.lang.IncompatibleClassChangeError?
...rror and AbstractMethodError.
The better paper about BC is "Evolving Java-based APIs 2: Achieving API Binary Compatibility" written by Jim des Rivières.
There are also some automatic tools to detect such changes:
japi-compliance-checker
clirr
japitools
sigtest
japi-checker
Usage of japi-compl...
“unrecognized import path” with go get
...o bash everything went ok.
Here is my go env
bash-3.2$ go env
GOARCH="amd64"
GOBIN=""
GOCHAR="6"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/bis/go"
GORACE=""
GOROOT="/usr/local/go"
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
CC="clang"
GOGCCFLAGS="-fPIC -m64 -pt...
Seeking clarification on apparent contradictions regarding weakly typed languages
...
@edalorzo: It is based on taste and personal opinions about (1) what aspects of type theory are relevant and which are irrelevant, and (2) whether a language is required to enforce or merely encourage type restrictions. As I pointed out, one ...
How can I convert String to Int?
...
What if the integer is 64 bit, or looks like "aslkdlksadjsd"? Is this still safe?
– Jonny
Dec 10 '14 at 10:11
6
...
What is more efficient? Using pow to square or just multiply it with itself?
...b)
TEST(5, b*b*b*b*b)
template <int exponent>
double testpow(double base, long loops)
{
double x = 0.0;
boost::posix_time::ptime startTime = now();
for (long i=0; i<loops; ++i)
{
x += std::pow(base, exponent);
x += std::pow(base, exponent);
x += std...
How to create Java gradle project
...ders eclipse` or `gradle initSourceFolders idea`
* @author Paul Verest;
* based on `gradle init --type basic`, that does not create source folders
*/
apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
task initSourceFolders { // add << before { to prevent executing during co...
Combine Date and Time columns using python pandas
...06 22:00:00
8 2013-03-06 23:00:00
9 2013-04-06 01:00:00
dtype: datetime64[ns]
Note: surprisingly (for me), this works fine with NaNs being converted to NaT, but it is worth worrying that the conversion (perhaps using the raise argument).
...