path: root/src/u8c/geterr.c

/*
	Copyright 2021 Gabriel Jensen

	This file is part of u8c.

	u8c is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

	u8c is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

	See the	GNU Affero General Public License for more details.

	You should have received a copy of the GNU Affero General Public License along with u8c.

	If not, see <https://www.gnu.org/licenses/>.
*/
# include "err.h"
# include "errlock.h"
# include <stddef.h>
# include <stdint.h>
# include <u8c/geterr.h>
# include <u8c/seterr.h>
# include <u8c/u32cp.h>
# include <u8c/u8free.h>
uint_least8_t u8c_geterr(size_t * const _sz,uint_least32_t const * * const _out) {
	if(u8c_err == NULL) {
		u8c_seterr((uint_least32_t[]){UINT32_C(0x0)});
	}
	# if defined(u8c_bethrdsafe)
		mtx_lock(&u8c_errlock);
	# endif
		u8c_u32cp(_sz,_out,u8c_err);
		u8c_u8free(u8c_err);
		u8c_err = NULL;
	# if defined(u8c_bethrdsafe)
		mtx_unlock(&u8c_errlock);
	# endif
		return UINT8_C(0x0);
	}