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fa434739a0
G_STATIC_ASSERT() is a drop-in functional equivalent of the GNULIB verify() macro. Reviewed-by: Pavel Hrdina <phrdina@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
78 lines
2.5 KiB
C
78 lines
2.5 KiB
C
/*
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* virenum.h: enum value conversion helpers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "internal.h"
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int
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virEnumFromString(const char * const *types,
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unsigned int ntypes,
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const char *type);
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const char *
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virEnumToString(const char * const *types,
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unsigned int ntypes,
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int type);
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#define VIR_ENUM_IMPL(name, lastVal, ...) \
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static const char *const name ## TypeList[] = { __VA_ARGS__ }; \
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const char *name ## TypeToString(int type) { \
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return virEnumToString(name ## TypeList, \
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G_N_ELEMENTS(name ## TypeList), \
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type); \
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} \
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int name ## TypeFromString(const char *type) { \
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return virEnumFromString(name ## TypeList, \
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G_N_ELEMENTS(name ## TypeList), \
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type); \
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} \
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G_STATIC_ASSERT(G_N_ELEMENTS(name ## TypeList) == lastVal)
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#define VIR_ENUM_DECL(name) \
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const char *name ## TypeToString(int type); \
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int name ## TypeFromString(const char*type)
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typedef enum {
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VIR_TRISTATE_BOOL_ABSENT = 0,
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VIR_TRISTATE_BOOL_YES,
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VIR_TRISTATE_BOOL_NO,
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VIR_TRISTATE_BOOL_LAST
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} virTristateBool;
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typedef enum {
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VIR_TRISTATE_SWITCH_ABSENT = 0,
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VIR_TRISTATE_SWITCH_ON,
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VIR_TRISTATE_SWITCH_OFF,
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VIR_TRISTATE_SWITCH_LAST
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} virTristateSwitch;
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VIR_ENUM_DECL(virTristateBool);
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VIR_ENUM_DECL(virTristateSwitch);
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virTristateBool virTristateBoolFromBool(bool val);
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virTristateSwitch virTristateSwitchFromBool(bool val);
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/* the two enums must be in sync to be able to use helpers interchangeably in
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* some special cases */
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G_STATIC_ASSERT((int)VIR_TRISTATE_BOOL_YES == (int)VIR_TRISTATE_SWITCH_ON);
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G_STATIC_ASSERT((int)VIR_TRISTATE_BOOL_NO == (int)VIR_TRISTATE_SWITCH_OFF);
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G_STATIC_ASSERT((int)VIR_TRISTATE_BOOL_ABSENT == (int)VIR_TRISTATE_SWITCH_ABSENT);
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