大约有 3,516 项符合查询结果（耗时：0.0330秒） [XML]
Difference between size_t and std::size_t
...are also defined in the same header.
Wikipedia has very good info about range and storage size of size_t:
Range and storage size of size_t
The actual type of size_t is
platform-dependent; a common mistake
is to assume size_t is the same as
unsigned int, which can lead to
programm...
Way to get number of digits in an int?
...
The fastest approach: divide and conquer.
Assuming your range is 0 to MAX_INT, then you have 1 to 10 digits. You can approach this interval using divide and conquer, with up to 4 comparisons per each input. First, you divide [1..10] into [1..5] and [6..10] with one comparison, and...
Does “untyped” also mean “dynamically typed” in the academic CS world?
...ipt variables are untyped, JavaScript values have types, and variables can range over any value type at runtime (i.e. 'dynamically').
In JavaScript and many other languages, values and not variables carry types. All variables can range over all types of values and may be considered "dynamically typ...
When should I use mmap for file access?
...ses in your process's address space that is large enough to fit the entire range of the file being mapped. This can become a problem if your address space becomes fragmented, where you might have 2 GB of address space free, but no individual range of it can fit a 1 GB file mapping. In this case yo...
Once upon a time, when > was faster than < … Wait, what?
... a specific old optimization where one frame you would use GL_LESS with a range of [0, 0.5]. Next frame, you render with GL_GREATER with a range of [1.0, 0.5]. You go back and forth, literally "flipping the sign of Z and the depth test" every frame.
This loses one bit of depth precision, but you d...
How to print to console in pytest?
... out in that particular test.
For example,
def test_good():
for i in range(1000):
print(i)
def test_bad():
print('this should fail!')
assert False
Results in the following output:
>>> py.test tmp.py
============================= test session starts ================...
Is there documentation for the Rails column types?
...tance, MySQL's TIMESTAMP datatype is stored as a unix timestamp. Its valid range goes from 1970 to 2038, and the time is stored as the number of seconds that have elapsed since the last epoch, which is supposedly standard, but in practice can differ from system to system. Recognizing that relative t...
When do you use POST and when do you use GET?
... an If-Modified-Since, If-Unmodified-Since, If-Match, If-None-Match, or If-Range header field. A conditional GET method requests that the entity be transferred only under the circumstances described by the conditional header field(s). The conditional GET method is intended to reduce unnecessary netw...
How is set() implemented?
... they do take constant time to look up items: python -m timeit -s "s = set(range(10))" "5 in s" 10000000 loops, best of 3: 0.0642 usec per loop <--> python -m timeit -s "s = set(range(10000000))" "5 in s" 10000000 loops, best of 3: 0.0634 usec per loop ... and that's the largest set that doesn...
Turn a number into star rating display using jQuery and CSS
...arseFloat($(this).html());
// Make sure that the value is in 0 - 5 range, multiply to get width
var size = Math.max(0, (Math.min(5, val))) * 16;
// Create stars holder
var $span = $('<span />').width(size);
// Replace the numerical value with stars
...