On Feb 28 2013, Craig Rasmussen wrote:

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The real question is what (integer) value does .TRUE._C_BOOL have?

Would great damage be done to the international standard gods if .TRUE._C_BOOL evaluates to the integer value 1? I guess the C programmer has to know what value (not processor dependent) to set it to.

I can't see why it should be. It's not the solution I proposed, but is in many ways simpler. Regards, Nick Maclaren.