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# PR_SetError
Sets error information within a thread context.
## Syntax
```{code}
#include <prerror.h>
void PR_SetError(PRErrorCode errorCode, PRInt32 oserr)
```
### Parameters
The function has these parameters:
`errorCode`
: The NSPR (platform-independent) translation of the error.
`oserr`
: The platform-specific error. If there is no appropriate OS error
number, a zero may be supplied.
## Description
NSPR does not validate the value of the error number or OS error number
being specified. The runtime merely stores the value and returns it when
requested.