AIRES library reference: getglobal.

c
c     Name to use to call from C/C++: getglobalc
c
c
      subroutine getglobal(gvname, sdynsw, gvval, valen)
c
c     Getting the current value of a global varible. The values
c     correspond to the data currently stored in the global area.
c
c     Written by: S. J. Sciutto, La Plata 2001, 2011, 2018.
c
c
c     Arguments:
c     =========
c
c     gvname.......... (input, character*(*)) Global variable name.
c     sdynsw.......... (output, integer) Type of variable: 1 dynamic,
c                      2 static, 0 if the variable is undefined.
c     gvval........... (output, character*(*)) The string currently
c                      assigned to the variable. The calling program
c                      must ensure enough space to store the string.
c     valen........... (output, integer) Length of gvval. valen is
c                      negative for undefined variables.
c
c
c<--->

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