OVMS3-idf/components/bootloader_support/include/bootloader_util.h
2018-10-26 12:44:10 +08:00

34 lines
1.1 KiB
C

// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include <stddef.h>
/**
* @brief Check if half-open intervals overlap
*
* @param start1 interval 1 start
* @param end1 interval 1 end
* @param start2 interval 2 start
* @param end2 interval 2 end
* @return true iff [start1; end1) overlaps [start2; end2)
*/
static inline bool bootloader_util_regions_overlap(
const intptr_t start1, const intptr_t end1,
const intptr_t start2, const intptr_t end2)
{
return (end1 > start2 && end2 > start1) ||
!(end1 <= start2 || end2 <= start1);
}