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Add R_TRY helper macro

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This commit is contained in:
Michael Scire 2019-05-30 00:33:02 -07:00
parent d2bfc032f8
commit c48d2c5e5d
1 changed files with 9 additions and 0 deletions
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9
nx/include/switch/result.h
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@ -17,6 +17,15 @@
/// Masks out unused bits in a result code, retrieving the actual value for use in comparisons. /// Masks out unused bits in a result code, retrieving the actual value for use in comparisons.
#define R_VALUE(res) ((res)&0x3FFFFF) #define R_VALUE(res) ((res)&0x3FFFFF)
/// Evaluates an expression that returns a result, and returns the result if it would fail.
#define R_TRY(res_expr) \
do { \
const Result _tmp_r_try_rc = res_expr; \
if (R_FAILED(_tmp_r_try_rc)) { \
return _tmp_r_try_rc; \
} \
} while (0)
/// Builds a result code from its constituent components. /// Builds a result code from its constituent components.
#define MAKERESULT(module,description) \ #define MAKERESULT(module,description) \
((((module)&0x1FF)) | ((description)&0x1FFF)<<9) ((((module)&0x1FF)) | ((description)&0x1FFF)<<9)