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- @node setenv, stdlib
- @subheading Syntax
-
- @example
- #include <stdlib.h>
-
- int setenv(const char *name, const char *value, int rewrite);
- @end example
-
- @subheading Description
-
- This function sets the environment variable @var{name} to @var{value}.
- If @var{rewrite} is set, then this function will replace any existing
- value. If it is not set, it will only put the variable into the environment
- if that variable isn't already defined.
-
- @subheading Return Value
-
- Zero on success, -1 on failure.
-