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RE Double precision in Fortran

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Old   May 6, 2009, 21:06
Default RE Double precision in Fortran
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Hi All,
How can I forcedly change all real variables from single precision to double precision in compaq Visual Fortran during compiling a code? This can be readily done in linux/unix, but seems difficult for me to achieve in compaq visual fortran running under windows xp.
Your hints would be greatly appreciated.
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