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+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+/**
+ * # CategoryAssert
+ *
+ * A helpful assertion macro!
+ *
+ * SDL assertions operate like your usual `assert` macro, but with some added
+ * features:
+ *
+ * - It uses a trick with the `sizeof` operator, so disabled assertions
+ *   vaporize out of the compiled code, but variables only referenced in the
+ *   assertion won't trigger compiler warnings about being unused.
+ * - It is safe to use with a dangling-else: `if (x) SDL_assert(y); else
+ *   do_something();`
+ * - It works the same everywhere, instead of counting on various platforms'
+ *   compiler and C runtime to behave.
+ * - It provides multiple levels of assertion (SDL_assert, SDL_assert_release,
+ *   SDL_assert_paranoid) instead of a single all-or-nothing option.
+ * - It offers a variety of responses when an assertion fails (retry, trigger
+ *   the debugger, abort the program, ignore the failure once, ignore it for
+ *   the rest of the program's run).
+ * - It tries to show the user a dialog by default, if possible, but the app
+ *   can provide a callback to handle assertion failures however they like.
+ * - It lets failed assertions be retried. Perhaps you had a network failure
+ *   and just want to retry the test after plugging your network cable back
+ *   in? You can.
+ * - It lets the user ignore an assertion failure, if there's a harmless
+ *   problem that one can continue past.
+ * - It lets the user mark an assertion as ignored for the rest of the
+ *   program's run; if there's a harmless problem that keeps popping up.
+ * - It provides statistics and data on all failed assertions to the app.
+ * - It allows the default assertion handler to be controlled with environment
+ *   variables, in case an automated script needs to control it.
+ * - It can be used as an aid to Clang's static analysis; it will treat SDL
+ *   assertions as universally true (under the assumption that you are serious
+ *   about the asserted claims and that your debug builds will detect when
+ *   these claims were wrong). This can help the analyzer avoid false
+ *   positives.
+ *
+ * To use it: compile a debug build and just sprinkle around tests to check
+ * your code!
+ */
+
+#ifndef SDL_assert_h_
+#define SDL_assert_h_
+
+#include <SDL3/SDL_stdinc.h>
+
+#include <SDL3/SDL_begin_code.h>
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef SDL_WIKI_DOCUMENTATION_SECTION
+
+/**
+ * The level of assertion aggressiveness.
+ *
+ * This value changes depending on compiler options and other preprocessor
+ * defines.
+ *
+ * It is currently one of the following values, but future SDL releases might
+ * add more:
+ *
+ * - 0: All SDL assertion macros are disabled.
+ * - 1: Release settings: SDL_assert disabled, SDL_assert_release enabled.
+ * - 2: Debug settings: SDL_assert and SDL_assert_release enabled.
+ * - 3: Paranoid settings: All SDL assertion macros enabled, including
+ *   SDL_assert_paranoid.
+ *
+ * \since This macro is available since SDL 3.2.0.
+ */
+#define SDL_ASSERT_LEVEL SomeNumberBasedOnVariousFactors
+
+#elif !defined(SDL_ASSERT_LEVEL)
+#ifdef SDL_DEFAULT_ASSERT_LEVEL
+#define SDL_ASSERT_LEVEL SDL_DEFAULT_ASSERT_LEVEL
+#elif defined(_DEBUG) || defined(DEBUG) || \
+      (defined(__GNUC__) && !defined(__OPTIMIZE__))
+#define SDL_ASSERT_LEVEL 2
+#else
+#define SDL_ASSERT_LEVEL 1
+#endif
+#endif
+
+#ifdef SDL_WIKI_DOCUMENTATION_SECTION
+
+/**
+ * Attempt to tell an attached debugger to pause.
+ *
+ * This allows an app to programmatically halt ("break") the debugger as if it
+ * had hit a breakpoint, allowing the developer to examine program state, etc.
+ *
+ * This is a macro--not a function--so that the debugger breaks on the source
+ * code line that used SDL_TriggerBreakpoint and not in some random guts of
+ * SDL. SDL_assert uses this macro for the same reason.
+ *
+ * If the program is not running under a debugger, SDL_TriggerBreakpoint will
+ * likely terminate the app, possibly without warning. If the current platform
+ * isn't supported, this macro is left undefined.
+ *
+ * \threadsafety It is safe to call this macro from any thread.
+ *
+ * \since This macro is available since SDL 3.2.0.
+ */
+#define SDL_TriggerBreakpoint() TriggerABreakpointInAPlatformSpecificManner
+
+#elif defined(_MSC_VER) && _MSC_VER >= 1310
+    /* Don't include intrin.h here because it contains C++ code */
+    extern void __cdecl __debugbreak(void);
+    #define SDL_TriggerBreakpoint() __debugbreak()
+#elif defined(_MSC_VER) && defined(_M_IX86)
+    #define SDL_TriggerBreakpoint() { _asm { int 0x03 }  }
+#elif defined(ANDROID)
+    #include <assert.h>
+    #define SDL_TriggerBreakpoint() assert(0)
+#elif SDL_HAS_BUILTIN(__builtin_debugtrap)
+    #define SDL_TriggerBreakpoint() __builtin_debugtrap()
+#elif SDL_HAS_BUILTIN(__builtin_trap)
+    #define SDL_TriggerBreakpoint() __builtin_trap()
+#elif (defined(__GNUC__) || defined(__clang__)) && (defined(__i386__) || defined(__x86_64__))
+    #define SDL_TriggerBreakpoint() __asm__ __volatile__ ( "int $3\n\t" )
+#elif (defined(__GNUC__) || defined(__clang__)) && defined(__riscv)
+    #define SDL_TriggerBreakpoint() __asm__ __volatile__ ( "ebreak\n\t" )
+#elif ( defined(SDL_PLATFORM_APPLE) && (defined(__arm64__) || defined(__aarch64__)) )  /* this might work on other ARM targets, but this is a known quantity... */
+    #define SDL_TriggerBreakpoint() __asm__ __volatile__ ( "brk #22\n\t" )
+#elif defined(SDL_PLATFORM_APPLE) && defined(__arm__)
+    #define SDL_TriggerBreakpoint() __asm__ __volatile__ ( "bkpt #22\n\t" )
+#elif defined(_WIN32) && ((defined(__GNUC__) || defined(__clang__)) && (defined(__arm64__) || defined(__aarch64__)) )
+    #define SDL_TriggerBreakpoint() __asm__ __volatile__ ( "brk #0xF000\n\t" )
+#elif defined(__GNUC__) || defined(__clang__)
+    #define SDL_TriggerBreakpoint() __builtin_trap()  /* older gcc may not support SDL_HAS_BUILTIN(__builtin_trap) above */
+#elif defined(__386__) && defined(__WATCOMC__)
+    #define SDL_TriggerBreakpoint() { _asm { int 0x03 } }
+#elif defined(HAVE_SIGNAL_H) && !defined(__WATCOMC__)
+    #include <signal.h>
+    #define SDL_TriggerBreakpoint() raise(SIGTRAP)
+#else
+    /* SDL_TriggerBreakpoint is intentionally left undefined on unknown platforms. */
+#endif
+
+#ifdef SDL_WIKI_DOCUMENTATION_SECTION
+
+/**
+ * A macro that reports the current function being compiled.
+ *
+ * If SDL can't figure how the compiler reports this, it will use "???".
+ *
+ * \since This macro is available since SDL 3.2.0.
+ */
+#define SDL_FUNCTION __FUNCTION__
+
+#elif defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 supports __func__ as a standard. */
+#   define SDL_FUNCTION __func__
+#elif ((defined(__GNUC__) && (__GNUC__ >= 2)) || defined(_MSC_VER) || defined (__WATCOMC__))
+#   define SDL_FUNCTION __FUNCTION__
+#else
+#   define SDL_FUNCTION "???"
+#endif
+
+/**
+ * A macro that reports the current file being compiled.
+ *
+ * \since This macro is available since SDL 3.2.0.
+ */
+#define SDL_FILE    __FILE__
+
+/**
+ * A macro that reports the current line number of the file being compiled.
+ *
+ * \since This macro is available since SDL 3.2.0.
+ */
+#define SDL_LINE    __LINE__
+
+/*
+sizeof (x) makes the compiler still parse the expression even without
+assertions enabled, so the code is always checked at compile time, but
+doesn't actually generate code for it, so there are no side effects or
+expensive checks at run time, just the constant size of what x WOULD be,
+which presumably gets optimized out as unused.
+This also solves the problem of...
+
+    int somevalue = blah();
+    SDL_assert(somevalue == 1);
+
+...which would cause compiles to complain that somevalue is unused if we
+disable assertions.
+*/
+
+#ifdef SDL_WIKI_DOCUMENTATION_SECTION
+
+/**
+ * A macro for wrapping code in `do {} while (0);` without compiler warnings.
+ *
+ * Visual Studio with really aggressive warnings enabled needs this to avoid
+ * compiler complaints.
+ *
+ * the `do {} while (0);` trick is useful for wrapping code in a macro that
+ * may or may not be a single statement, to avoid various C language
+ * accidents.
+ *
+ * To use:
+ *
+ * ```c
+ * do { SomethingOnce(); } while (SDL_NULL_WHILE_LOOP_CONDITION (0));
+ * ```
+ *
+ * \since This macro is available since SDL 3.2.0.
+ */
+#define SDL_NULL_WHILE_LOOP_CONDITION (0)
+
+#elif defined(_MSC_VER)  /* Avoid /W4 warnings. */
+/* "while (0,0)" fools Microsoft's compiler's /W4 warning level into thinking
+    this condition isn't constant. And looks like an owl's face! */
+#define SDL_NULL_WHILE_LOOP_CONDITION (0,0)
+#else
+#define SDL_NULL_WHILE_LOOP_CONDITION (0)
+#endif
+
+/**
+ * The macro used when an assertion is disabled.
+ *
+ * This isn't for direct use by apps, but this is the code that is inserted
+ * when an SDL_assert is disabled (perhaps in a release build).
+ *
+ * The code does nothing, but wraps `condition` in a sizeof operator, which
+ * generates no code and has no side effects, but avoid compiler warnings
+ * about unused variables.
+ *
+ * \param condition the condition to assert (but not actually run here).
+ *
+ * \since This macro is available since SDL 3.2.0.
+ */
+#define SDL_disabled_assert(condition) \
+    do { (void) sizeof ((condition)); } while (SDL_NULL_WHILE_LOOP_CONDITION)
+
+/**
+ * Possible outcomes from a triggered assertion.
+ *
+ * When an enabled assertion triggers, it may call the assertion handler
+ * (possibly one provided by the app via SDL_SetAssertionHandler), which will
+ * return one of these values, possibly after asking the user.
+ *
+ * Then SDL will respond based on this outcome (loop around to retry the
+ * condition, try to break in a debugger, kill the program, or ignore the
+ * problem).
+ *
+ * \since This enum is available since SDL 3.2.0.
+ */
+typedef enum SDL_AssertState
+{
+    SDL_ASSERTION_RETRY,  /**< Retry the assert immediately. */
+    SDL_ASSERTION_BREAK,  /**< Make the debugger trigger a breakpoint. */
+    SDL_ASSERTION_ABORT,  /**< Terminate the program. */
+    SDL_ASSERTION_IGNORE,  /**< Ignore the assert. */
+    SDL_ASSERTION_ALWAYS_IGNORE  /**< Ignore the assert from now on. */
+} SDL_AssertState;
+
+/**
+ * Information about an assertion failure.
+ *
+ * This structure is filled in with information about a triggered assertion,
+ * used by the assertion handler, then added to the assertion report. This is
+ * returned as a linked list from SDL_GetAssertionReport().
+ *
+ * \since This struct is available since SDL 3.2.0.
+ */
+typedef struct SDL_AssertData
+{
+    bool always_ignore;  /**< true if app should always continue when assertion is triggered. */
+    unsigned int trigger_count; /**< Number of times this assertion has been triggered. */
+    const char *condition;  /**< A string of this assert's test code. */
+    const char *filename;  /**< The source file where this assert lives. */
+    int linenum;  /**< The line in `filename` where this assert lives. */
+    const char *function;  /**< The name of the function where this assert lives. */
+    const struct SDL_AssertData *next;  /**< next item in the linked list. */
+} SDL_AssertData;
+
+/**
+ * Never call this directly.
+ *
+ * Use the SDL_assert macros instead.
+ *
+ * \param data assert data structure.
+ * \param func function name.
+ * \param file file name.
+ * \param line line number.
+ * \returns assert state.
+ *
+ * \threadsafety It is safe to call this function from any thread.
+ *
+ * \since This function is available since SDL 3.2.0.
+ */
+extern SDL_DECLSPEC SDL_AssertState SDLCALL SDL_ReportAssertion(SDL_AssertData *data,
+                                                            const char *func,
+                                                            const char *file, int line) SDL_ANALYZER_NORETURN;
+
+
+#ifdef SDL_WIKI_DOCUMENTATION_SECTION
+
+/**
+ * The macro used when an assertion triggers a breakpoint.
+ *
+ * This isn't for direct use by apps; use SDL_assert or SDL_TriggerBreakpoint
+ * instead.
+ *
+ * \since This macro is available since SDL 3.2.0.
+ */
+#define SDL_AssertBreakpoint() SDL_TriggerBreakpoint()
+
+#elif !defined(SDL_AssertBreakpoint)
+#  if defined(ANDROID) && defined(assert)
+     /* Define this as empty in case assert() is defined as SDL_assert */
+#    define SDL_AssertBreakpoint()
+#  else
+#    define SDL_AssertBreakpoint() SDL_TriggerBreakpoint()
+#  endif
+#endif /* !SDL_AssertBreakpoint */
+
+/**
+ * The macro used when an assertion is enabled.
+ *
+ * This isn't for direct use by apps, but this is the code that is inserted
+ * when an SDL_assert is enabled.
+ *
+ * The `do {} while(0)` avoids dangling else problems:
+ *
+ * ```c
+ * if (x) SDL_assert(y); else blah();
+ * ```
+ *
+ * ... without the do/while, the "else" could attach to this macro's "if". We
+ * try to handle just the minimum we need here in a macro...the loop, the
+ * static vars, and break points. The heavy lifting is handled in
+ * SDL_ReportAssertion().
+ *
+ * \param condition the condition to assert.
+ *
+ * \since This macro is available since SDL 3.2.0.
+ */
+#define SDL_enabled_assert(condition) \
+    do { \
+        while ( !(condition) ) { \
+            static struct SDL_AssertData sdl_assert_data = { 0, 0, #condition, 0, 0, 0, 0 }; \
+            const SDL_AssertState sdl_assert_state = SDL_ReportAssertion(&sdl_assert_data, SDL_FUNCTION, SDL_FILE, SDL_LINE); \
+            if (sdl_assert_state == SDL_ASSERTION_RETRY) { \
+                continue; /* go again. */ \
+            } else if (sdl_assert_state == SDL_ASSERTION_BREAK) { \
+                SDL_AssertBreakpoint(); \
+            } \
+            break; /* not retrying. */ \
+        } \
+    } while (SDL_NULL_WHILE_LOOP_CONDITION)
+
+#ifdef SDL_WIKI_DOCUMENTATION_SECTION
+
+/**
+ * An assertion test that is normally performed only in debug builds.
+ *
+ * This macro is enabled when the SDL_ASSERT_LEVEL is >= 2, otherwise it is
+ * disabled. This is meant to only do these tests in debug builds, so they can
+ * tend to be more expensive, and they are meant to bring everything to a halt
+ * when they fail, with the programmer there to assess the problem.
+ *
+ * In short: you can sprinkle these around liberally and assume they will
+ * evaporate out of the build when building for end-users.
+ *
+ * When assertions are disabled, this wraps `condition` in a `sizeof`
+ * operator, which means any function calls and side effects will not run, but
+ * the compiler will not complain about any otherwise-unused variables that
+ * are only referenced in the assertion.
+ *
+ * One can set the environment variable "SDL_ASSERT" to one of several strings
+ * ("abort", "break", "retry", "ignore", "always_ignore") to force a default
+ * behavior, which may be desirable for automation purposes. If your platform
+ * requires GUI interfaces to happen on the main thread but you're debugging
+ * an assertion in a background thread, it might be desirable to set this to
+ * "break" so that your debugger takes control as soon as assert is triggered,
+ * instead of risking a bad UI interaction (deadlock, etc) in the application.
+ *
+ * \param condition boolean value to test.
+ *
+ * \threadsafety It is safe to call this macro from any thread.
+ *
+ * \since This macro is available since SDL 3.2.0.
+ */
+#define SDL_assert(condition) if (assertion_enabled && (condition)) { trigger_assertion; }
+
+/**
+ * An assertion test that is performed even in release builds.
+ *
+ * This macro is enabled when the SDL_ASSERT_LEVEL is >= 1, otherwise it is
+ * disabled. This is meant to be for tests that are cheap to make and
+ * extremely unlikely to fail; generally it is frowned upon to have an
+ * assertion failure in a release build, so these assertions generally need to
+ * be of more than life-and-death importance if there's a chance they might
+ * trigger. You should almost always consider handling these cases more
+ * gracefully than an assert allows.
+ *
+ * When assertions are disabled, this wraps `condition` in a `sizeof`
+ * operator, which means any function calls and side effects will not run, but
+ * the compiler will not complain about any otherwise-unused variables that
+ * are only referenced in the assertion.
+ *
+ * One can set the environment variable "SDL_ASSERT" to one of several strings
+ * ("abort", "break", "retry", "ignore", "always_ignore") to force a default
+ * behavior, which may be desirable for automation purposes. If your platform
+ * requires GUI interfaces to happen on the main thread but you're debugging
+ * an assertion in a background thread, it might be desirable to set this to
+ * "break" so that your debugger takes control as soon as assert is triggered,
+ * instead of risking a bad UI interaction (deadlock, etc) in the application.
+ * *
+ *
+ * \param condition boolean value to test.
+ *
+ * \threadsafety It is safe to call this macro from any thread.
+ *
+ * \since This macro is available since SDL 3.2.0.
+ */
+#define SDL_assert_release(condition) SDL_disabled_assert(condition)
+
+/**
+ * An assertion test that is performed only when built with paranoid settings.
+ *
+ * This macro is enabled when the SDL_ASSERT_LEVEL is >= 3, otherwise it is
+ * disabled. This is a higher level than both release and debug, so these
+ * tests are meant to be expensive and only run when specifically looking for
+ * extremely unexpected failure cases in a special build.
+ *
+ * When assertions are disabled, this wraps `condition` in a `sizeof`
+ * operator, which means any function calls and side effects will not run, but
+ * the compiler will not complain about any otherwise-unused variables that
+ * are only referenced in the assertion.
+ *
+ * One can set the environment variable "SDL_ASSERT" to one of several strings
+ * ("abort", "break", "retry", "ignore", "always_ignore") to force a default
+ * behavior, which may be desirable for automation purposes. If your platform
+ * requires GUI interfaces to happen on the main thread but you're debugging
+ * an assertion in a background thread, it might be desirable to set this to
+ * "break" so that your debugger takes control as soon as assert is triggered,
+ * instead of risking a bad UI interaction (deadlock, etc) in the application.
+ *
+ * \param condition boolean value to test.
+ *
+ * \threadsafety It is safe to call this macro from any thread.
+ *
+ * \since This macro is available since SDL 3.2.0.
+ */
+#define SDL_assert_paranoid(condition) SDL_disabled_assert(condition)
+
+/* Enable various levels of assertions. */
+#elif SDL_ASSERT_LEVEL == 0   /* assertions disabled */
+#   define SDL_assert(condition) SDL_disabled_assert(condition)
+#   define SDL_assert_release(condition) SDL_disabled_assert(condition)
+#   define SDL_assert_paranoid(condition) SDL_disabled_assert(condition)
+#elif SDL_ASSERT_LEVEL == 1  /* release settings. */
+#   define SDL_assert(condition) SDL_disabled_assert(condition)
+#   define SDL_assert_release(condition) SDL_enabled_assert(condition)
+#   define SDL_assert_paranoid(condition) SDL_disabled_assert(condition)
+#elif SDL_ASSERT_LEVEL == 2  /* debug settings. */
+#   define SDL_assert(condition) SDL_enabled_assert(condition)
+#   define SDL_assert_release(condition) SDL_enabled_assert(condition)
+#   define SDL_assert_paranoid(condition) SDL_disabled_assert(condition)
+#elif SDL_ASSERT_LEVEL == 3  /* paranoid settings. */
+#   define SDL_assert(condition) SDL_enabled_assert(condition)
+#   define SDL_assert_release(condition) SDL_enabled_assert(condition)
+#   define SDL_assert_paranoid(condition) SDL_enabled_assert(condition)
+#else
+#   error Unknown assertion level.
+#endif
+
+/**
+ * An assertion test that is always performed.
+ *
+ * This macro is always enabled no matter what SDL_ASSERT_LEVEL is set to. You
+ * almost never want to use this, as it could trigger on an end-user's system,
+ * crashing your program.
+ *
+ * One can set the environment variable "SDL_ASSERT" to one of several strings
+ * ("abort", "break", "retry", "ignore", "always_ignore") to force a default
+ * behavior, which may be desirable for automation purposes. If your platform
+ * requires GUI interfaces to happen on the main thread but you're debugging
+ * an assertion in a background thread, it might be desirable to set this to
+ * "break" so that your debugger takes control as soon as assert is triggered,
+ * instead of risking a bad UI interaction (deadlock, etc) in the application.
+ *
+ * \param condition boolean value to test.
+ *
+ * \threadsafety It is safe to call this macro from any thread.
+ *
+ * \since This macro is available since SDL 3.2.0.
+ */
+#define SDL_assert_always(condition) SDL_enabled_assert(condition)
+
+
+/**
+ * A callback that fires when an SDL assertion fails.
+ *
+ * \param data a pointer to the SDL_AssertData structure corresponding to the
+ *             current assertion.
+ * \param userdata what was passed as `userdata` to SDL_SetAssertionHandler().
+ * \returns an SDL_AssertState value indicating how to handle the failure.
+ *
+ * \threadsafety This callback may be called from any thread that triggers an
+ *               assert at any time.
+ *
+ * \since This datatype is available since SDL 3.2.0.
+ */
+typedef SDL_AssertState (SDLCALL *SDL_AssertionHandler)(
+                                 const SDL_AssertData *data, void *userdata);
+
+/**
+ * Set an application-defined assertion handler.
+ *
+ * This function allows an application to show its own assertion UI and/or
+ * force the response to an assertion failure. If the application doesn't
+ * provide this, SDL will try to do the right thing, popping up a
+ * system-specific GUI dialog, and probably minimizing any fullscreen windows.
+ *
+ * This callback may fire from any thread, but it runs wrapped in a mutex, so
+ * it will only fire from one thread at a time.
+ *
+ * This callback is NOT reset to SDL's internal handler upon SDL_Quit()!
+ *
+ * \param handler the SDL_AssertionHandler function to call when an assertion
+ *                fails or NULL for the default handler.
+ * \param userdata a pointer that is passed to `handler`.
+ *
+ * \threadsafety It is safe to call this function from any thread.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_GetAssertionHandler
+ */
+extern SDL_DECLSPEC void SDLCALL SDL_SetAssertionHandler(
+                                            SDL_AssertionHandler handler,
+                                            void *userdata);
+
+/**
+ * Get the default assertion handler.
+ *
+ * This returns the function pointer that is called by default when an
+ * assertion is triggered. This is an internal function provided by SDL, that
+ * is used for assertions when SDL_SetAssertionHandler() hasn't been used to
+ * provide a different function.
+ *
+ * \returns the default SDL_AssertionHandler that is called when an assert
+ *          triggers.
+ *
+ * \threadsafety It is safe to call this function from any thread.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_GetAssertionHandler
+ */
+extern SDL_DECLSPEC SDL_AssertionHandler SDLCALL SDL_GetDefaultAssertionHandler(void);
+
+/**
+ * Get the current assertion handler.
+ *
+ * This returns the function pointer that is called when an assertion is
+ * triggered. This is either the value last passed to
+ * SDL_SetAssertionHandler(), or if no application-specified function is set,
+ * is equivalent to calling SDL_GetDefaultAssertionHandler().
+ *
+ * The parameter `puserdata` is a pointer to a void*, which will store the
+ * "userdata" pointer that was passed to SDL_SetAssertionHandler(). This value
+ * will always be NULL for the default handler. If you don't care about this
+ * data, it is safe to pass a NULL pointer to this function to ignore it.
+ *
+ * \param puserdata pointer which is filled with the "userdata" pointer that
+ *                  was passed to SDL_SetAssertionHandler().
+ * \returns the SDL_AssertionHandler that is called when an assert triggers.
+ *
+ * \threadsafety It is safe to call this function from any thread.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_SetAssertionHandler
+ */
+extern SDL_DECLSPEC SDL_AssertionHandler SDLCALL SDL_GetAssertionHandler(void **puserdata);
+
+/**
+ * Get a list of all assertion failures.
+ *
+ * This function gets all assertions triggered since the last call to
+ * SDL_ResetAssertionReport(), or the start of the program.
+ *
+ * The proper way to examine this data looks something like this:
+ *
+ * ```c
+ * const SDL_AssertData *item = SDL_GetAssertionReport();
+ * while (item) {
+ *    printf("'%s', %s (%s:%d), triggered %u times, always ignore: %s.\\n",
+ *           item->condition, item->function, item->filename,
+ *           item->linenum, item->trigger_count,
+ *           item->always_ignore ? "yes" : "no");
+ *    item = item->next;
+ * }
+ * ```
+ *
+ * \returns a list of all failed assertions or NULL if the list is empty. This
+ *          memory should not be modified or freed by the application. This
+ *          pointer remains valid until the next call to SDL_Quit() or
+ *          SDL_ResetAssertionReport().
+ *
+ * \threadsafety This function is not thread safe. Other threads calling
+ *               SDL_ResetAssertionReport() simultaneously, may render the
+ *               returned pointer invalid.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_ResetAssertionReport
+ */
+extern SDL_DECLSPEC const SDL_AssertData * SDLCALL SDL_GetAssertionReport(void);
+
+/**
+ * Clear the list of all assertion failures.
+ *
+ * This function will clear the list of all assertions triggered up to that
+ * point. Immediately following this call, SDL_GetAssertionReport will return
+ * no items. In addition, any previously-triggered assertions will be reset to
+ * a trigger_count of zero, and their always_ignore state will be false.
+ *
+ * \threadsafety This function is not thread safe. Other threads triggering an
+ *               assertion, or simultaneously calling this function may cause
+ *               memory leaks or crashes.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_GetAssertionReport
+ */
+extern SDL_DECLSPEC void SDLCALL SDL_ResetAssertionReport(void);
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+}
+#endif
+#include <SDL3/SDL_close_code.h>
+
+#endif /* SDL_assert_h_ */