• Giles Lean's avatar
    syscall package: document that errno is zeroed on success · ac3cf56d
    Giles Lean authored
    This is a documentation enhancement only, without any code
    change.
    
    The rationale for documenting this precisely is that Unix
    programmers who "know" that errno's value is undefined after
    a successful system call may be surprised otherwise and
    search to be sure that a zero errno may be relied upon after
    successful calls.
    
    R=r, rsc1, rsc
    CC=golang-dev
    https://golang.org/cl/812044
    ac3cf56d
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