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#!F-adobe-helvetica-medium-r-normal--18*
#!N
#!CSeaGreen #!Rall553 Function Execution #!N #!EC #!N
#!N When either a macro or a module function is executed,
a new dynamically scoped environment specific to that function call is
created. Variables that correspond to the function's input and output formal
parameters are created in this new environment. The variables corresponding to
the output formal parameters are initialized to #!F-adobe-times-bold-r-normal--18* NULL #!EF .
Those variables corresponding to the input formal parameters are initialized in
the manner described in the preceding section. If an input and
an output formal parameter both have the same name, then they
share a single parameter and are initialized to the value passed
as input when the function is called. #!N #!N #!N #!N
#!N #!F-adobe-times-medium-i-normal--18* Next Topic #!EF #!N #!N #!Lall554,dxall555 h Macro Expansion #!EL #!N #!F-adobe-times-medium-i-normal--18* #!N
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