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Tests: static vs non-static constexpr variables

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Problem:
- `static` variables consume memory and sometimes are less
  optimizable.
- `static const` variables can be `constexpr`, usually.
- `static` function-local variables require an initialization check
  every time the function is run.

Solution:
- If a global `static` variable is only used in a single function then
  move it into the function and make it non-`static` and `constexpr`.
- Make all global `static` variables `constexpr` instead of `const`.
- Change function-local `static const[expr]` variables to be just
  `constexpr`.
This commit is contained in:
Lenny Maiorani 2021-05-19 08:54:19 -06:00 • committed by Linus Groh
parent 4aaf8df865
commit 2b64d163cd
6 changed files with 23 additions and 25 deletions
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12
Tests/LibC/overlong_realpath.cpp
View file

@ -14,14 +14,14 @@
#include <unistd.h>
// FIXME
static const char* TEXT_FAIL = "\x1b[01;31m";
static const char* TEXT_PASS = "\x1b[01;32m";
static const char* TEXT_RESET = "\x1b[0m";
static constexpr char TEXT_FAIL[] = "\x1b[01;31m";
static constexpr char TEXT_PASS[] = "\x1b[01;32m";
static constexpr char TEXT_RESET[] = "\x1b[0m";
static const char* TMPDIR_PATTERN = "/tmp/overlong_realpath_XXXXXX";
static const char* PATH_LOREM_250 = "This-is-an-annoyingly-long-name-that-should-take-up-exactly-two-hundred-and-fifty-characters-and-is-surprisingly-difficult-to-fill-with-reasonably-meaningful-text-which-is-necessary-because-that-makes-it-easier-for-my-eyes-to-spot-any-corruption-fast";
static constexpr char TMPDIR_PATTERN[] = "/tmp/overlong_realpath_XXXXXX";
static constexpr char PATH_LOREM_250[] = "This-is-an-annoyingly-long-name-that-should-take-up-exactly-two-hundred-and-fifty-characters-and-is-surprisingly-difficult-to-fill-with-reasonably-meaningful-text-which-is-necessary-because-that-makes-it-easier-for-my-eyes-to-spot-any-corruption-fast";
static const size_t ITERATION_DEPTH = 17;
static constexpr size_t ITERATION_DEPTH = 17;
static bool check_result(const char* what, const String& expected, const char* actual)
{