有关gfortran初始值的设定的问题

fcode

       -finit-local-zero
       -finit-integer=n
       -finit-real=<zero|inf|-inf|nan>
       -finit-logical=<true|false>
       -finit-character=n

The -finit-local-zero option instructs the compiler to initialize local "INTEGER",
           "REAL", and "COMPLEX" variables to zero, "LOGICAL" variables to false, and "CHARACTER"
           variables to a string of null bytes.  Finer-grained initialization options are
           provided by the -finit-integer=n, -finit-real=<zero|inf|-inf|nan> (which also
           initializes the real and imaginary parts of local "COMPLEX" variables),

fcode

不是，只有子程序（函数）的局部变量，主程序的变量，才叫“local variables”