37 lines
1.9 KiB
C
37 lines
1.9 KiB
C
#ifndef COMMON_RESULT_H
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#define COMMON_RESULT_H
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#include <stdbool.h>
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#define RESULT(Value, Error, struct_name) \
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typedef struct { \
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bool ok; \
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union { \
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Value value; \
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Error error; \
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}; \
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} struct_name;
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#define RESULT_CTORS(Value, Error, struct_name, function_prefix) \
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static inline struct_name function_prefix##_ok(Value value) \
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{ \
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return (struct_name) { \
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.ok = true, \
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.value = value, \
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}; \
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} \
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\
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static inline struct_name function_prefix##_error(Error error) \
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{ \
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return (struct_name) { \
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.ok = false, \
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.error = error, \
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}; \
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}
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#define RESULT_WITH_CTORS(Value, Error, struct_name, function_prefix) \
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RESULT(Value, Error, struct_name) \
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RESULT_CTORS(Value, Error, struct_name, function_prefix)
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#endif
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