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What does static_assert do, and what would you use it for?
...ou can put a static assert like this
static_assert(sizeof(unsigned int) * CHAR_BIT == 32);
in your code. On another platform, with differently sized unsigned int type the compilation will fail, thus drawing attention of the developer to the problematic portion of the code and advising them to re-...
What is the email subject length limit?
How many characters are allowed to be in the subject line of Internet email?
I had a scan of The RFC for email but could not see specifically how long it was allowed to be.
I have a colleague that wants to programmatically validate for it.
...
Realistic usage of the C99 'restrict' keyword?
...ons could be saved, as mentioned by supercat.
Consider for example:
void f(char *restrict p1, char *restrict p2) {
for (int i = 0; i < 50; i++) {
p1[i] = 4;
p2[i] = 9;
}
}
Because of restrict, a smart compiler (or human), could optimize that to:
memset(p1, 4, 50);
memset(...
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;
}
...
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
...
How to TryParse for Enum value?
... = Enum.ToObject(type, ul);
return true;
}
private static char[] _enumSeperators = new char[] { ',', ';', '+', '|', ' ' };
private static object EnumToObject(Type underlyingType, string input)
{
if (underlyingType == typeof(int))
{
int s;
...
Does pandas iterrows have performance issues?
...y slow to update a row at a time. Much better to create new structures and concat.
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Post data to JsonP
... clonedForm.attr(attr.name, attr.value);
});
form.find('input, select, textarea').each(function()
{
clonedForm.append($(this).clone());
});
return clonedForm;
}
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LEN function not including trailing spaces in SQL Server
..."returns the number of bytes used to represent any expression".
Example:
SELECT
ID,
TestField,
LEN(TestField) As LenOfTestField, -- Does not include trailing spaces
DATALENGTH(TestField) As DataLengthOfTestField -- Shows the true length of data, including trailing...
Differences and relationship between glActiveTexture and glBindTexture
...rent objects, and all of our object manipulation functions are adjusted to select from the current object.
When you change the currently active object, you change the entire set of target locations. So you can bind something that goes into current object 0, switch to current object 4, and will be m...