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result: Add default error code for the ResultCode(-1) case 

Will be used to reduce the overall duplication of the same magic value
all over the codebase in following changes.
This commit is contained in:
Lioncash 2019-11-12 04:45:21 -05:00
parent 581d2e36e5
commit ef060ed40c
1 changed files with 9 additions and 1 deletions
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10
src/core/hle/result.h
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@ -146,6 +146,14 @@ constexpr bool operator!=(const ResultCode& a, const ResultCode& b) {
/// The default success `ResultCode`. /// The default success `ResultCode`.
constexpr ResultCode RESULT_SUCCESS(0); constexpr ResultCode RESULT_SUCCESS(0);
/**
* Placeholder result code used for unknown error codes.
*
* @note This should only be used when a particular error code
* is not known yet.
*/
constexpr ResultCode RESULT_UNKNOWN(UINT32_MAX);
/** /**
* This is an optional value type. It holds a `ResultCode` and, if that code is a success code, * This is an optional value type. It holds a `ResultCode` and, if that code is a success code,
* also holds a result of type `T`. If the code is an error code then trying to access the inner * also holds a result of type `T`. If the code is an error code then trying to access the inner
@ -183,7 +191,7 @@ class ResultVal {
public: public:
/// Constructs an empty `ResultVal` with the given error code. The code must not be a success /// Constructs an empty `ResultVal` with the given error code. The code must not be a success
/// code. /// code.
ResultVal(ResultCode error_code = ResultCode(UINT32_MAX)) : result_code(error_code) { ResultVal(ResultCode error_code = RESULT_UNKNOWN) : result_code(error_code) {
ASSERT(error_code.IsError()); ASSERT(error_code.IsError());
} }