--- environ.7 2009-05-16 16:21:37.000000000 +0300 +++ environ.7.mod 2009-05-16 16:30:18.000000000 +0300 @@ -52,6 +52,10 @@ This array of strings is made available to the process by the .BR exec (3) call that started the process. +The last element of the array is a NULL pointer. +There fore, the expression +"\fIenviron[last_element]\fP\fB == \fP\fINULL\fP" +is true. By convention these strings have the form "\fIname\fP\fB=\fP\fIvalue\fP". Common examples are:
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