added absolutely broken cpp code after painfull debugging session
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vendored/SDL/include/SDL3/SDL_time.h
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231
vendored/SDL/include/SDL3/SDL_time.h
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef SDL_time_h_
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#define SDL_time_h_
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/**
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* # CategoryTime
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*
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* SDL realtime clock and date/time routines.
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*
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* There are two data types that are used in this category: SDL_Time, which
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* represents the nanoseconds since a specific moment (an "epoch"), and
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* SDL_DateTime, which breaks time down into human-understandable components:
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* years, months, days, hours, etc.
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*
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* Much of the functionality is involved in converting those two types to
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* other useful forms.
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*/
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#include <SDL3/SDL_error.h>
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#include <SDL3/SDL_stdinc.h>
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#include <SDL3/SDL_begin_code.h>
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/* Set up for C function definitions, even when using C++ */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* A structure holding a calendar date and time broken down into its
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* components.
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*
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* \since This struct is available since SDL 3.2.0.
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*/
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typedef struct SDL_DateTime
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{
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int year; /**< Year */
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int month; /**< Month [01-12] */
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int day; /**< Day of the month [01-31] */
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int hour; /**< Hour [0-23] */
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int minute; /**< Minute [0-59] */
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int second; /**< Seconds [0-60] */
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int nanosecond; /**< Nanoseconds [0-999999999] */
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int day_of_week; /**< Day of the week [0-6] (0 being Sunday) */
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int utc_offset; /**< Seconds east of UTC */
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} SDL_DateTime;
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/**
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* The preferred date format of the current system locale.
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*
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* \since This enum is available since SDL 3.2.0.
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*
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* \sa SDL_GetDateTimeLocalePreferences
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*/
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typedef enum SDL_DateFormat
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{
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SDL_DATE_FORMAT_YYYYMMDD = 0, /**< Year/Month/Day */
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SDL_DATE_FORMAT_DDMMYYYY = 1, /**< Day/Month/Year */
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SDL_DATE_FORMAT_MMDDYYYY = 2 /**< Month/Day/Year */
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} SDL_DateFormat;
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/**
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* The preferred time format of the current system locale.
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*
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* \since This enum is available since SDL 3.2.0.
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*
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* \sa SDL_GetDateTimeLocalePreferences
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*/
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typedef enum SDL_TimeFormat
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{
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SDL_TIME_FORMAT_24HR = 0, /**< 24 hour time */
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SDL_TIME_FORMAT_12HR = 1 /**< 12 hour time */
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} SDL_TimeFormat;
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/**
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* Gets the current preferred date and time format for the system locale.
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*
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* This might be a "slow" call that has to query the operating system. It's
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* best to ask for this once and save the results. However, the preferred
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* formats can change, usually because the user has changed a system
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* preference outside of your program.
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*
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* \param dateFormat a pointer to the SDL_DateFormat to hold the returned date
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* format, may be NULL.
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* \param timeFormat a pointer to the SDL_TimeFormat to hold the returned time
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* format, may be NULL.
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* \returns true on success or false on failure; call SDL_GetError() for more
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* information.
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*
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* \since This function is available since SDL 3.2.0.
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*/
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extern SDL_DECLSPEC bool SDLCALL SDL_GetDateTimeLocalePreferences(SDL_DateFormat *dateFormat, SDL_TimeFormat *timeFormat);
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/**
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* Gets the current value of the system realtime clock in nanoseconds since
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* Jan 1, 1970 in Universal Coordinated Time (UTC).
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*
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* \param ticks the SDL_Time to hold the returned tick count.
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* \returns true on success or false on failure; call SDL_GetError() for more
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* information.
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*
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* \since This function is available since SDL 3.2.0.
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*/
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extern SDL_DECLSPEC bool SDLCALL SDL_GetCurrentTime(SDL_Time *ticks);
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/**
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* Converts an SDL_Time in nanoseconds since the epoch to a calendar time in
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* the SDL_DateTime format.
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*
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* \param ticks the SDL_Time to be converted.
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* \param dt the resulting SDL_DateTime.
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* \param localTime the resulting SDL_DateTime will be expressed in local time
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* if true, otherwise it will be in Universal Coordinated
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* Time (UTC).
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* \returns true on success or false on failure; call SDL_GetError() for more
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* information.
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*
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* \since This function is available since SDL 3.2.0.
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*/
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extern SDL_DECLSPEC bool SDLCALL SDL_TimeToDateTime(SDL_Time ticks, SDL_DateTime *dt, bool localTime);
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/**
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* Converts a calendar time to an SDL_Time in nanoseconds since the epoch.
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*
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* This function ignores the day_of_week member of the SDL_DateTime struct, so
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* it may remain unset.
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*
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* \param dt the source SDL_DateTime.
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* \param ticks the resulting SDL_Time.
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* \returns true on success or false on failure; call SDL_GetError() for more
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* information.
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*
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* \since This function is available since SDL 3.2.0.
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*/
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extern SDL_DECLSPEC bool SDLCALL SDL_DateTimeToTime(const SDL_DateTime *dt, SDL_Time *ticks);
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/**
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* Converts an SDL time into a Windows FILETIME (100-nanosecond intervals
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* since January 1, 1601).
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*
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* This function fills in the two 32-bit values of the FILETIME structure.
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*
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* \param ticks the time to convert.
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* \param dwLowDateTime a pointer filled in with the low portion of the
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* Windows FILETIME value.
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* \param dwHighDateTime a pointer filled in with the high portion of the
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* Windows FILETIME value.
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*
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* \since This function is available since SDL 3.2.0.
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*/
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extern SDL_DECLSPEC void SDLCALL SDL_TimeToWindows(SDL_Time ticks, Uint32 *dwLowDateTime, Uint32 *dwHighDateTime);
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/**
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* Converts a Windows FILETIME (100-nanosecond intervals since January 1,
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* 1601) to an SDL time.
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*
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* This function takes the two 32-bit values of the FILETIME structure as
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* parameters.
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*
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* \param dwLowDateTime the low portion of the Windows FILETIME value.
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* \param dwHighDateTime the high portion of the Windows FILETIME value.
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* \returns the converted SDL time.
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*
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* \since This function is available since SDL 3.2.0.
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*/
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extern SDL_DECLSPEC SDL_Time SDLCALL SDL_TimeFromWindows(Uint32 dwLowDateTime, Uint32 dwHighDateTime);
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/**
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* Get the number of days in a month for a given year.
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*
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* \param year the year.
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* \param month the month [1-12].
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* \returns the number of days in the requested month or -1 on failure; call
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* SDL_GetError() for more information.
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*
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* \since This function is available since SDL 3.2.0.
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*/
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extern SDL_DECLSPEC int SDLCALL SDL_GetDaysInMonth(int year, int month);
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/**
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* Get the day of year for a calendar date.
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*
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* \param year the year component of the date.
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* \param month the month component of the date.
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* \param day the day component of the date.
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* \returns the day of year [0-365] if the date is valid or -1 on failure;
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* call SDL_GetError() for more information.
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*
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* \since This function is available since SDL 3.2.0.
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*/
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extern SDL_DECLSPEC int SDLCALL SDL_GetDayOfYear(int year, int month, int day);
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/**
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* Get the day of week for a calendar date.
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*
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* \param year the year component of the date.
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* \param month the month component of the date.
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* \param day the day component of the date.
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* \returns a value between 0 and 6 (0 being Sunday) if the date is valid or
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* -1 on failure; call SDL_GetError() for more information.
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*
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* \since This function is available since SDL 3.2.0.
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*/
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extern SDL_DECLSPEC int SDLCALL SDL_GetDayOfWeek(int year, int month, int day);
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/* Ends C function definitions when using C++ */
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#ifdef __cplusplus
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}
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#endif
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#include <SDL3/SDL_close_code.h>
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#endif /* SDL_time_h_ */
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