Upgrade to the r27 NDK and fix a ton of new lints.

.github/workflows/main.yml

@@ -371,7 +371,7 @@ jobs:
 
   build-lnx-bad:
     needs: [cache-submodule]
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
 
     steps:
     - uses: actions/checkout@v4

README.md

@@ -6,7 +6,7 @@ Orchid is a decentralized marketplace "for bandwidth"; providers run a server (i
 
 Many users would like to compile Orchid. Thankfully, Orchid is extremely easy to build... so easy, in fact, that a lot of people seem confused by a lack of complex instructions :(. Every single library dependency of Orchid is included as a git submodule (so don't forget to run "git submodule update --init --recursive") and is compiled by the Orchid build system, so there is no need for a lengthy DEPS list: there are no "external" steps (as you often see with many other C/C++ projects).
 
-Of course, you do need to have the requisite build tooling installed... in addition to the standard set of C/C++ development tools (autotools, bison/flex, make, etc.) we specifically require clang (for which I'm truly sorry: maybe one day we'll support gcc) and ldd (neither binutils ld nor gold are sufficient). Some of the build scripts for our dependencies use Python (I think only 3.x), one insists on being built using meson/ninja, and we use a couple libraries that are written in Rust.
+Of course, you do need to have the requisite build tooling installed... in addition to the standard set of C/C++ development tools (autotools, bison/flex, make, etc.) we specifically require clang 16+ (for which I'm truly sorry: maybe one day we'll support gcc) and ldd (neither binutils ld nor gold are sufficient). Some of the build scripts for our dependencies use Python (I think only 3.x), one insists on being built using meson/ninja, and we use a couple libraries that are written in Rust.
 
 (At this point I will note, as this has come up multiple times: it is neither practical nor appropriate for Orchid's documentation to detail how to install any of these toolchains. The instructions are different for every operating system, are different for every single distribution of Linux, and are often even different for specific versions of a distribution. FWIW, developers already have most of this software installed; and, if you don't, these projects have their own documentation.)
 

app-linux/source/main.cpp

@@ -32,7 +32,7 @@ struct _MyApplication {
     char **dart_entrypoint_arguments;
 };
 
-// NOLINTNEXTLINE(cppcoreguidelines-avoid-non-const-global-variables,performance-no-int-to-ptr)
+// NOLINTNEXTLINE(clang-analyzer-optin.core.EnumCastOutOfRange,cppcoreguidelines-avoid-non-const-global-variables,performance-no-int-to-ptr)
 G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
 
 static void my_application_activate(GApplication *application) {

env/checks.mk

@@ -15,6 +15,8 @@ checks += bugprone-*
 checks/bugprone-argument-comment.StrictMode := true
 checks += -bugprone-branch-clone
 checks += -bugprone-easily-swappable-parameters
+# XXX: I should enable this check and do a comprehensive audit
+checks += -bugprone-empty-catch
 # XXX: this is higher priority but I'm not ready for this yet
 checks += -bugprone-exception-escape
 checks/bugprone-exception-escape.IgnoredExceptions := "broken_promise"
@@ -34,9 +36,12 @@ checks += -cert-env33-c
 checks += -cert-err58-cpp
 
 checks += clang-analyzer-*
+# XXX: this flags something in boost multiprecision (of course)
+checks += -clang-analyzer-core.BitwiseShift
 
 checks += cppcoreguidelines-*
 checks += -cppcoreguidelines-avoid-c-arrays
+checks += -cppcoreguidelines-avoid-capturing-lambda-coroutines
 # this check is the exact opposite of a good guideline :/
 checks += -cppcoreguidelines-avoid-const-or-ref-data-members
 checks += -cppcoreguidelines-avoid-do-while
@@ -49,6 +54,10 @@ checks += -cppcoreguidelines-avoid-reference-coroutine-parameters
 checks += -cppcoreguidelines-init-variables
 # XXX: I didn't pay any attention to whether this check was interesting or not
 checks += -cppcoreguidelines-macro-usage
+# this was accidentally helpful, actually, but isn't an acceptable decision :/
+checks += -cppcoreguidelines-misleading-capture-default-by-value
+# this check doesn't handle unused parameters; am I doing this wrong?!
+checks += -cppcoreguidelines-missing-std-forward
 checks += -cppcoreguidelines-non-private-member-variables-in-classes
 # XXX: the code which most hates this apparently does allow for memory leaks :(
 checks += -cppcoreguidelines-prefer-member-initializer
@@ -57,8 +66,13 @@ checks += -cppcoreguidelines-pro-bounds-array-to-pointer-decay
 checks += -cppcoreguidelines-pro-bounds-pointer-arithmetic
 checks += -cppcoreguidelines-pro-type-reinterpret-cast
 checks += -cppcoreguidelines-pro-type-union-access
+# XXX: this check is interesting, but I'm unsure about move/forward confusion
+checks += -cppcoreguidelines-rvalue-reference-param-not-moved
+checks/cppcoreguidelines-rvalue-reference-param-not-moved.IgnoreUnnamedParams := true
 # this check makes utility classes super frustrating :/
 checks += -cppcoreguidelines-special-member-functions
+# this check makes separates definitions of related variables
+checks += -cppcoreguidelines-use-default-member-init
 
 # XXX: I'm using a lot of statically constructed objects
 #checks += fuchsia-statically-constructed-objects
@@ -67,6 +81,9 @@ checks += fuchsia-virtual-inheritance
 checks += google-build-*
 
 checks += misc-*
+# I love the idea of this check, but boost does this a lot
+checks += -misc-header-include-cycle
+checks += -misc-include-cleaner
 checks += -misc-misplaced-const
 checks += -misc-no-recursion
 # this check doesn't allow for any protected members :/
@@ -76,6 +93,8 @@ checks += -misc-unused-parameters
 
 checks += modernize-*
 checks += -modernize-avoid-c-arrays
+# XXX: I don't want this, but it also crashes on boost::multiprecision::abs
+checks += -modernize-use-constraints
 checks += -modernize-use-default-member-init
 checks += -modernize-use-nodiscard
 checks += -modernize-use-trailing-return-type
@@ -84,6 +103,8 @@ checks += -modernize-use-using
 
 checks += performance-*
 checks/performance-move-const-arg.CheckTriviallyCopyableMove := 0
+# XXX: I am pretty sure I just disagree with this optimization
+checks += -performance-avoid-endl
 
 checks += readability-const-return-type
 checks += readability-container-size-empty
@@ -98,11 +119,6 @@ checks += readability-redundant-string-init
 checks += readability-static-definition-in-anonymous-namespace
 checks += readability-uniqueptr-delete-release
 
-ifeq ($(target),and)
-# XXX: boost multiprecision on android
-#checks += -clang-analyzer-core.UndefinedBinaryOperatorResult
-endif
-
 ifeq ($(target),win)
 # XXX: boost::asio::detail::do_throw_error should be [[noreturn]]
 # (though, marking it [[noreturn]] didn't actually make it work)

env/output.mk

@@ -30,7 +30,7 @@ code = $(patsubst @/%,$(output)/$(arch)/%,$(header)) $(sysroot)
 # in this model, cflags would be something controlled only by the user
 flags_ = $(if $(filter ./,$(1)),,$(call flags_,$(dir $(patsubst %/,%,$(1)))) $(cflags/$(1)))
 flags- = $(call flags_,$(patsubst ./$(output)/%,%,$(patsubst ./$(output)/$(arch)/%,./$(output)/%,./$(dir $<))))
-flags = $(qflags) $(patsubst -I@/%,-I$(output)/$(arch)/%,$(filter -I%,$(cflags/./$<) $(flags-) $(cflags)) $(filter-out -I%,$(cflags) $(flags-) $(cflags/./$<)))
+flags = $(filter-out $(dflags/./$<),$(qflags)) $(patsubst -I@/%,-I$(output)/$(arch)/%,$(filter -I%,$(cflags/./$<) $(flags-) $(cflags)) $(filter-out -I%,$(cflags) $(flags-) $(cflags/./$<)))
 flags += $(if $(filter $(output)/%,$<),-D__FILE__='"$(patsubst $(output)/%,%,$<)"' -Wno-builtin-macro-redefined)
 
 define compile

env/setup-ndk.sh

@@ -1,4 +1,4 @@
 #!/bin/bash
 set -e
 set -o pipefail
-echo y | "${ANDROID_HOME}"/cmdline-tools/latest/bin/sdkmanager "build-tools;30.0.3" "ndk;26.3.11579264" "platforms;android-34" >/dev/null
+echo y | "${ANDROID_HOME}"/cmdline-tools/latest/bin/sdkmanager "build-tools;30.0.3" "ndk;27.0.12077973" "platforms;android-34" >/dev/null

lib-protocol/source/drain.hpp

@@ -90,7 +90,7 @@ class Sunk {
     }
 };
 
-template <typename Super_, typename Drain_, typename Inner_ = typename std::remove_reference<decltype(std::declval<Outer<Super_>>().Inner())>::type>
+template <typename Super_, typename Drain_, typename Inner_ = typename std::remove_reference_t<decltype(std::declval<Outer<Super_>>().Inner())>>
 class Sink :
     public Super_,
     public Sunk<Drain_, Inner_>

lib-protocol/source/jsonrpc.hpp

@@ -79,7 +79,7 @@ struct Numeric<true, Size_, Type_> {
 };
 
 template <typename Type_>
-struct Coded<Type_, typename std::enable_if<std::is_unsigned<Type_>::value>::type> :
+struct Coded<Type_, typename std::enable_if_t<std::is_unsigned_v<Type_>>> :
     public Numeric<false, sizeof(Type_), Type_>
 {
     static void Name(std::ostringstream &signature) {
@@ -88,7 +88,7 @@ struct Coded<Type_, typename std::enable_if<std::is_unsigned<Type_>::value>::typ
 };
 
 template <typename Type_>
-struct Coded<Type_, typename std::enable_if<std::is_signed<Type_>::value>::type> :
+struct Coded<Type_, typename std::enable_if_t<std::is_signed_v<Type_>>> :
     public Numeric<true, sizeof(Type_), Type_>
 {
     static void Name(std::ostringstream &signature) {
@@ -97,7 +97,7 @@ struct Coded<Type_, typename std::enable_if<std::is_signed<Type_>::value>::type>
 };
 
 template <size_t Bits_, boost::multiprecision::cpp_int_check_type Check_>
-struct Coded<boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<Bits_, Bits_, boost::multiprecision::unsigned_magnitude, Check_, void>>, typename std::enable_if<Bits_ % 8 == 0>::type> :
+struct Coded<boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<Bits_, Bits_, boost::multiprecision::unsigned_magnitude, Check_, void>>, typename std::enable_if_t<Bits_ % 8 == 0>> :
     public Numeric<false, (Bits_ >> 3), boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<Bits_, Bits_, boost::multiprecision::unsigned_magnitude, Check_, void>>>
 {
     static void Name(std::ostringstream &signature) {
@@ -106,7 +106,7 @@ struct Coded<boost::multiprecision::number<boost::multiprecision::backends::cpp_
 };
 
 template <size_t Bits_, boost::multiprecision::cpp_int_check_type Check_>
-struct Coded<boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<Bits_, Bits_, boost::multiprecision::signed_magnitude, Check_, void>>, typename std::enable_if<Bits_ % 8 == 0>::type> :
+struct Coded<boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<Bits_, Bits_, boost::multiprecision::signed_magnitude, Check_, void>>, typename std::enable_if_t<Bits_ % 8 == 0>> :
     public Numeric<true, (Bits_ >> 3), boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<Bits_, Bits_, boost::multiprecision::signed_magnitude, Check_, void>>>
 {
     static void Name(std::ostringstream &signature) {
@@ -161,7 +161,7 @@ struct Coded<bool, void> {
 };
 
 template <size_t Size_>
-struct Coded<Brick<Size_>, typename std::enable_if<Size_ == 32>::type> {
+struct Coded<Brick<Size_>, typename std::enable_if_t<Size_ == 32>> {
     static const bool dynamic_ = false;
 
     static void Name(std::ostringstream &signature) {

lib-protocol/source/lwip.hpp

@@ -56,6 +56,7 @@ typedef int SOCKET;
 using namespace rtc;
 
 // Event constants for the Dispatcher class.
+// NOLINTNEXTLINE(performance-enum-size)
 enum DispatcherEvent {
   DE_READ = 0x0001,
   DE_WRITE = 0x0002,

lib-protocol/source/memory.cpp

@@ -34,8 +34,9 @@
 // NOLINTBEGIN(cppcoreguidelines-avoid-non-const-global-variables)
 
 namespace orc {
+namespace {
 
-static int file_(-1);
+int file_(-1);
 
 // XXX: there are a number of arrays in this file; are they correct?
 
@@ -74,7 +75,7 @@ class Out {
         if (value == 0)
             *--end = '0';
         else do {
-            unsigned digit(value % 10);
+            const unsigned digit(value % 10);
             value /= 10;
             *--end = static_cast<char>('0' + digit);
         } while (value != 0);
@@ -100,7 +101,7 @@ class Out {
         if (value == 0)
             *--end = '0';
         else do {
-            unsigned digit(value & 0xf);
+            const unsigned digit(value & 0xf);
             value >>= 4;
             *--end = static_cast<char>((digit < 10 ? '0' : 'a' - 10) + digit);
         } while (value != 0);
@@ -110,9 +111,9 @@ class Out {
     }
 };
 
-static size_t total_(0);
+size_t total_(0);
 
-static void Audit(size_t add, size_t sub) {
+void Audit(size_t add, size_t sub) {
     total_ += add;
     total_ -= sub;
     if (add < sub)
@@ -122,8 +123,8 @@ static void Audit(size_t add, size_t sub) {
     Out() << total_ << " (" << (add - sub) << ")";
 }
 
-static decltype(std::declval<_malloc_zone_t *>()->malloc) apl_malloc;
-static void *orc_malloc(struct _malloc_zone_t *zone, size_t size) {
+decltype(std::declval<_malloc_zone_t *>()->malloc) apl_malloc;
+void *orc_malloc(struct _malloc_zone_t *zone, size_t size) {
     auto value(apl_malloc(zone, size));
     if (value == nullptr)
         return nullptr;
@@ -134,8 +135,8 @@ static void *orc_malloc(struct _malloc_zone_t *zone, size_t size) {
     return value;
 }
 
-static decltype(std::declval<_malloc_zone_t *>()->calloc) apl_calloc;
-static void *orc_calloc(struct _malloc_zone_t *zone, size_t count, size_t size) {
+decltype(std::declval<_malloc_zone_t *>()->calloc) apl_calloc;
+void *orc_calloc(struct _malloc_zone_t *zone, size_t count, size_t size) {
     auto value(apl_calloc(zone, count, size));
     if (value == nullptr)
         return nullptr;
@@ -146,8 +147,8 @@ static void *orc_calloc(struct _malloc_zone_t *zone, size_t count, size_t size)
     return value;
 }
 
-static decltype(std::declval<_malloc_zone_t *>()->valloc) apl_valloc;
-static void *orc_valloc(struct _malloc_zone_t *zone, size_t size) {
+decltype(std::declval<_malloc_zone_t *>()->valloc) apl_valloc;
+void *orc_valloc(struct _malloc_zone_t *zone, size_t size) {
     auto value(apl_valloc(zone, size));
     if (value == nullptr)
         return nullptr;
@@ -158,8 +159,8 @@ static void *orc_valloc(struct _malloc_zone_t *zone, size_t size) {
     return value;
 }
 
-static decltype(std::declval<_malloc_zone_t *>()->realloc) apl_realloc;
-static void *orc_realloc(struct _malloc_zone_t *zone, void *old, size_t size) {
+decltype(std::declval<_malloc_zone_t *>()->realloc) apl_realloc;
+void *orc_realloc(struct _malloc_zone_t *zone, void *old, size_t size) {
     auto before(zone->size(zone, old));
     auto value(apl_realloc(zone, old, size));
     auto after(zone->size(zone, value));
@@ -169,42 +170,42 @@ static void *orc_realloc(struct _malloc_zone_t *zone, void *old, size_t size) {
     return value;
 }
 
-static decltype(std::declval<_malloc_zone_t *>()->free) apl_free;
-static void orc_free(struct _malloc_zone_t *zone, void *value) {
+decltype(std::declval<_malloc_zone_t *>()->free) apl_free;
+void orc_free(struct _malloc_zone_t *zone, void *value) {
     auto full(zone->size(zone, value));
     if (file_ != -1)
         Out() << "free(" << value << ")";
     Audit(0, full);
     return apl_free(zone, value);
 }
 
-static decltype(std::declval<_malloc_zone_t *>()->batch_malloc) apl_batch_malloc;
-static unsigned orc_batch_malloc(struct _malloc_zone_t *zone, size_t size, void **values, unsigned count) {
+decltype(std::declval<_malloc_zone_t *>()->batch_malloc) apl_batch_malloc;
+unsigned orc_batch_malloc(struct _malloc_zone_t *zone, size_t size, void **values, unsigned count) {
     count = apl_batch_malloc(zone, size, values, count);
     size_t full(0);
     for (size_t i(0); i != count; ++i) {
         full += zone->size(zone, values[i]);
         if (file_ != -1)
-            Out() << "batch_malloc(" << size << ", " << values << "[" << i << "]) = " << values[i];
+            Out() << "batch_malloc(" << size << ", " << reinterpret_cast<void *>(values) << "[" << i << "]) = " << values[i];
     }
     Audit(full, 0);
     return count;
 }
 
-static decltype(std::declval<_malloc_zone_t *>()->batch_free) apl_batch_free;
-static void orc_batch_free(struct _malloc_zone_t *zone, void **values, unsigned count) {
+decltype(std::declval<_malloc_zone_t *>()->batch_free) apl_batch_free;
+void orc_batch_free(struct _malloc_zone_t *zone, void **values, unsigned count) {
     size_t full(0);
     for (size_t i(0); i != count; ++i) {
         full += zone->size(zone, values[i]);
         if (file_ != -1)
-            Out() << "batch_free(" << values << "[" << i << "] = " << values[i] << ")";
+            Out() << "batch_free(" << reinterpret_cast<void *>(values) << "[" << i << "] = " << values[i] << ")";
     }
     Audit(0, full);
     return apl_batch_free(zone, values, count);
 }
 
-static decltype(std::declval<_malloc_zone_t *>()->memalign) apl_memalign;
-static void *orc_memalign(struct _malloc_zone_t *zone, size_t alignment, size_t size) {
+decltype(std::declval<_malloc_zone_t *>()->memalign) apl_memalign;
+void *orc_memalign(struct _malloc_zone_t *zone, size_t alignment, size_t size) {
     auto value(apl_memalign(zone, alignment, size));
     auto full(zone->size(zone, value));
     if (file_ != -1)
@@ -213,8 +214,8 @@ static void *orc_memalign(struct _malloc_zone_t *zone, size_t alignment, size_t
     return value;
 }
 
-static decltype(std::declval<_malloc_zone_t *>()->free_definite_size) apl_free_definite_size;
-static void orc_free_definite_size(struct _malloc_zone_t *zone, void *value, size_t size) {
+decltype(std::declval<_malloc_zone_t *>()->free_definite_size) apl_free_definite_size;
+void orc_free_definite_size(struct _malloc_zone_t *zone, void *value, size_t size) {
     auto full(zone->size(zone, value));
     if (file_ != -1)
         Out() << "free_definite_size(" << value << ", " << size << ")";
@@ -229,6 +230,9 @@ static void orc_free_definite_size(struct _malloc_zone_t *zone, void *value, siz
     zone->name = &orc_ ## name; \
 } while (false)
 
+} }
+
+namespace orc {
 void Hook() {
     return;
 
@@ -257,9 +261,7 @@ void Hook() {
     orc_swizzle(batch_free);
     orc_swizzle(memalign);
     orc_swizzle(free_definite_size);
-}
-
-}
+} }
 
 #else
 namespace orc {

lib-protocol/source/nest.hpp

@@ -94,7 +94,7 @@ class Nest final :
     }
 
     template <typename Code_>
-    auto Hatch(Code_ code, const char *name) noexcept -> typename std::enable_if<noexcept(code()), bool>::type {
+    auto Hatch(Code_ code, const char *name) noexcept -> typename std::enable_if_t<noexcept(code()), bool> {
         Count count(this);
         if (count > limit_)
             return false;

lib-protocol/source/spawn.hpp

@@ -110,7 +110,7 @@ class Detached {
 };
 
 template <typename Code_>
-auto Spawn(Code_ code, const char *name) noexcept -> typename std::enable_if<noexcept(code())>::type {
+auto Spawn(Code_ code, const char *name) noexcept -> typename std::enable_if_t<noexcept(code())> {
     [](Code_ code, const char *name) mutable noexcept -> Detached {
         co_await Schedule();
 #ifdef ORC_FIBER