clearenv(3C) clearenv(3C)
NAME
clearenv - clear the process environment
SYNOPSIS
DESCRIPTION
clears the process environment. No environment variables are defined immediately after a call to
modifies the value of the pointer environ. This means that copies of that pointer are invalid after a call to
RETURN VALUE
Upon successful completion, returns zero; otherwise, it returns -1 and sets to indicate the error.
ERRORS
fails if the following condition is encountered:
[ENOMEM] Failed to free or reallocate memory for the process environment.
SEE ALSO
environ(5), getenv(3C), putenv(3C), thread_safety(5), <stdlib.h>.
STANDARDS CONFORMANCE
clearenv(3C)
