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Is std::vector so much slower than plain arrays?
...ector. So much for the compiler being smart enough to optimize out all the C++ness and make STL containers as fast as raw arrays.
The bottom line is that the compiler is unable to optimize away the no-op default constructor calls when using std::vector. If you use plain new[] it optimizes them away...
Is there a “previous sibling” selector?
... order: -1;
}
/* non-essential decorative styles */
li {
height: 200px;
width: 200px;
background-color: aqua;
margin: 5px;
list-style-type: none;
cursor: pointer;
}
<ul>
<li>B</li>
<li>A</li>
</ul>
From the fl...
python requests file upload
...save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
return 'OK', 200
Or use werkzeug Form Data Parsing as mentioned in a fix for the issue of "large file uploads eating up memory" in order to avoid using memory inefficiently on large files upload (s.t. 22 GiB file in ~60 seconds. Memory ...
What should go into an .h file?
...PL. #2 would be possible if export was supported and may be possible using c++0x and extern templates. IMO, header files in c++ lose much of their usefulness.
– KitsuneYMG
Dec 22 '09 at 12:39
...
What is the difference between “Include Directories” and “Additional Include Directories”
In configuration properties of my project, under the "VC++ directories" there is an entry for "Include Directories". But under "C/C++" option, there is another entry called "Additional Include Directories". Same thing happens with library directories.
...
Why does string::compare return an int?
...ntegral
promotion, so there's no point in returning anything smaller.
In C++ (as in C), every expression is either an rvalue or an
lvalue. Historically, the terms refer to the fact that lvalues
appear on the left of an assignment, where as rvalues can only
appear on the right. Today, a simple ap...
What is a bank conflict? (Doing Cuda/OpenCL programming)
...same bank the access has to be serialized (this is a bank conflict). For gt200 gpus there are 16 banks (32banks for fermi), 16 or 32 banks for AMD gpus (57xx or higher: 32, everything below: 16)), which are interleaved with a granuity of 32bit (so byte 0-3 are in bank 1, 4-7 in bank 2, ..., 64-69 in...
Why is the asterisk before the variable name, rather than after the type?
...
float an_element = my_array[2];
and: int copy_of_value = *myVariable;.
C++ throws a spanner in the works with references, because the syntax at the point where you use references is identical to that of value types, so you could argue that C++ takes a different approach to C. On the other hand, ...
PHP CURL DELETE request
...);
// Check the HTTP Status code
switch ($httpCode) {
case 200:
$error_status = "200: Success";
return ($data);
break;
case 404:
$error_status = "404: API Not found";
break;
case 500:
$error_statu...
Using Spring MVC Test to unit test multipart POST request
... .param("some-random", "4"))
.andExpect(status().is(200))
.andExpect(content().string("success"));
}
}
And the @Configuration class
@Configuration
@ComponentScan({ "test.controllers" })
@EnableWebMvc
public class WebConfig extends WebMvcConfiguration...