_Static_assert
From cppreference.com
_Static_assert evaluates a constant expression at compile time. If the expression is equal to 0, the compiler will produce an error message containing the string literal given as the second parameter.
| This section is incomplete Reason: write a page on static_assert-declaration, move content from here |
[edit] Parameters
| condition | - | constant expression |
| str | - | string literal |
[edit] Return Value
(none)
[edit] Example
Run this code
#define BUFFER_SIZE 2048 int main (int argc, char **argv) { // Test if math works. _Static_assert(2 + 2 == 4, "Whoa dude!"); // This will produce an error at compile time. _Static_assert(BUFFER_SIZE <= 1024, "BUFFER_SIZE is too big"); return 0; }