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How can I use “sizeof” in a preprocessor macro?
...error.
1. C11 way
Starting with C11 you can use static_assert (requires #include <assert.h>).
Usage:
static_assert(sizeof(someThing) == PAGE_SIZE, "Data structure doesn't match page size");
2. Custom macro
If you just want to get a compile-time error when sizeof(something) is not what y...
I have 2 dates in PHP, how can I run a foreach loop to go through all of those days?
...put all days in the defined period between $start and $end. If you want to include the 10th, set $end to 11th. You can adjust format to your liking. See the PHP Manual for DatePeriod.
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When is a C++ destructor called?
...t new, as dasblinkenlight observes.
To give a concrete example of this:
#include <iostream>
#include <new>
struct Foo
{
Foo(int i_) : i(i_) {}
int i;
};
int main()
{
// Allocate a chunk of memory large enough to hold 5 Foo objects.
int n = 5;
char *chunk = static_...
super() fails with error: TypeError “argument 1 must be type, not classobj” when parent does not inh
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Format a Go string without printing?
...e template and generates the output.
You may provide parameters which are included/substituted in the static template and which may control the output generation process. Typical form of such parameters are structs and map values which may be nested.
Example:
For example let's say you want to gen...
What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?
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git rebase without changing commit timestamps
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How to repeat a string a variable number of times in C++?
...xample of how you might use an ostringstream to repeat a string n times:
#include <sstream>
std::string repeat(int n) {
std::ostringstream os;
for(int i = 0; i < n; i++)
os << "repeat";
return os.str();
}
Depending on the implementation, this may be slightly mo...
How do I turn off Oracle password expiration?
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When to use DataContract and DataMember attributes?
...g system that allows you to manage changes to structured data
We need to include System.Runtime.Serialization reference to the project. This assembly holds the DataContract and DataMember attribute.
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