23 lines
588 B
C
23 lines
588 B
C
// This file is part of the CircuitPython project: https://circuitpython.org
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//
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// SPDX-FileCopyrightText: Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
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//
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// SPDX-License-Identifier: MIT
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#include "shared/runtime/buffer_helper.h"
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void normalize_buffer_bounds(int32_t *start, int32_t end, size_t *length) {
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if (end < 0) {
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end += *length;
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} else if (((size_t)end) > *length) {
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end = *length;
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}
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if (*start < 0) {
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*start += *length;
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}
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if (end < *start) {
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*length = 0;
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} else {
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*length = end - *start;
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}
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}
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