StrError
Description
Get last error using an error number.
Parameters
| Name | Direction | Description |
|---|---|---|
eno |
in | Unique error number descriptor. |
err_str |
out | Error string will be stored in this. |
Success
Returns err_str with the error description appended.
Failure
Aborts via ValidateStr if err_str is NULL or uninitialised (*err_str is left in its pre-call state).
Usage example (Cross-references)
Usage examples (Cross-references)
- In
Log.h:128:
StrAppendFmt(&UNPL(m), __VA_ARGS__); \
StrInitStack(UNPL(syserr), 256) { \
StrError(UNPL(sys_eno), &UNPL(syserr)); \
StrAppendFmt(&UNPL(m), " : {}", UNPL(syserr)); \
} \
- In
Log.h:157:
StrAppendFmt(&UNPL(m), __VA_ARGS__); \
StrInitStack(UNPL(syserr), 256) { \
StrError(UNPL(sys_eno), &UNPL(syserr)); \
StrAppendFmt(&UNPL(m), " : {}", UNPL(syserr)); \
} \
- In
Log.h:185:
StrAppendFmt(&UNPL(m), __VA_ARGS__); \
StrInitStack(UNPL(syserr), 256) { \
StrError(UNPL(sys_eno), &UNPL(syserr)); \
StrAppendFmt(&UNPL(m), " : {}", UNPL(syserr)); \
} \
- In
Sys.c:239:
// on the first byte via `reserve_vec`, regardless of platform; it only
// stayed hidden because the errno paths that reach here are rare.
Str *StrError(i32 eno, Str *err_str) {
ValidateStr(err_str);
StrClear(err_str);
Last updated on