* avoid undefined behavior from UNREACHABLE on reachable code paths
UNREACHABLE expands to __assume(false) / __builtin_unreachable() in
release builds, which is undefined behavior if the code is ever actually
reached. Many UNREACHABLE sites only guard against unexpected-but-
possible runtime states (values from tables, mission/save files, network
packets, scripting, or user input), so reaching them should degrade
gracefully rather than invoke UB.
Replace UNREACHABLE with Assertion(false, ...) at all such sites. It
still pops an error in debug builds, but in release it is a harmless
no-op that simply falls through to the following code. Sites that are
genuinely unreachable by local invariants (e.g. a switch over a bounded
random number) are left as UNREACHABLE.
A few converted sites had no safe fall-through -- an uninitialized read,
null dereference, or null call would have followed -- so they also get a
minimal recovery: initialize the value, guard the dereference, return
early, or skip the offending item.
Where the converted site was a simple guard of the form
if (x) { Assertion(false, ...); return; }
hoist the check onto the invariant instead:
Assertion(!x, ...);
if (x) { return; }
This states the expectation directly and shows the offending value in
the debug popup, while keeping the same graceful runtime degradation.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
* addendum
After consultation with Lafiel, use UNREACHABLE in situations that are effectively impossible even if not provably impossible. UNREACHABLE = "this shouldn't ever happen"; Assertion = "if this ever happens, it's a coding error". Also fix a few other sites and change a couple to Warnings.
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Co-authored-by: Claude Opus 4.8 (1M context) <[email protected]>
* use std::move() for local variables that are copied but not reused
Addresses ~140 Coverity "Variable copied when it could be moved"
defects across 74 files. Every std::move() targets a local variable
whose value is consumed by push_back, emplace, assignment, lambda
capture, or a function call and is never read again afterward.
Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>
* clang: use std::make_shared
* clang: use std::make_unique
* address feedback
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Co-authored-by: Claude Opus 4.6 (1M context) <[email protected]>
Fix the inadvertent swapping of the two utility functions for parsing sounds. While we're at it, streamline a few lines, remove a few C-style casts, and remove an unused function prototype.
Follow-up to #6314. Fixes a crash encountered by Inferno on 24.2-RC1.
* coverity - using `std::move` instead of copying, and change some parameters from value to reference
* coverity - fix or mark potential copy-paste mistakes
* coverity - various checking of parameter and return values
* coverity - miscellaneous fixes, and change some 'intentional' markers to 'false positive' markers
I took a close look at the code involved in parsing particle tables. There is no smoking gun, but there are several ways to polish the code which I have implemented here. The most likely culprits for the slowdown, IMO, are the repeated conversions between SCP_string and C-string, especially in `ParticleManager::getEffectByName()`; followed by the omission of `std::move` in several places.
This adds a new field to particle effects so that particle rotation can be configured on a per-type basis, not just on a blanket basis. Implements #5941.
The `SCP_string_lcase_equal_to()()` and `SCP_string_lcase_less_than()()` functors are rather unwieldy to use in non-functor situations, so this adds conventional function equivalents.
