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60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2008-2011 Kristian Høgsberg
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* Copyright © 2011 Intel Corporation
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* Copyright © 2013-2015 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#include "config.h"
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#include <unistd.h>
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#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0])
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#define ARRAY_FOR_EACH(_arr, _elem) \
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for (size_t _i = 0; _i < ARRAY_LENGTH(_arr) && (_elem = &_arr[_i]); _i++)
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/**
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* Use to stringify a switch case value:
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* switch (foo) {
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* CASE_RETURN_STRING(ENUMVALUE);
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* CASE_RETURN_STRING(OTHERVALUE);
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* }
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*/
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#define CASE_RETURN_STRING(_x) case _x: return #_x
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#define min(a, b) (((a) < (b)) ? (a) : (b))
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#define max(a, b) (((a) > (b)) ? (a) : (b))
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#define ANSI_UP "\x1B[%dA"
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#define ANSI_DOWN "\x1B[%dB"
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#define ANSI_RIGHT "\x1B[%dC"
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#define ANSI_LEFT "\x1B[%dD"
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#define _public_ __attribute__((visibility("default")))
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#define _printf_(_a, _b) __attribute__((format (printf, _a, _b)))
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#define _fallthrough_ __attribute__((fallthrough))
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#define _unused_ __attribute__((unused))
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#define run_only_once \
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static int _once_per_##__func__ = 0; \
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for (; _once_per_##__func__ == 0; _once_per_##__func__ = 1)
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