INTERVIEW QUESTIONS PROGRAMMING LANGUAGES FORTRAN DETAILS

Question: How do you use a logical variable? What is stored there?

Answer: Most frequently, logical variables are used in association with IF statements. When you want to set a logical variable LVAR to true you use "LVAR=.TRUE.". For false use "LVAR=.FALSE." In practice the computer usually stores an integer 0 in memory for false and integer 1 for true. The normal logical variable occupies 1 byte of space.

Most frequently, logical variables are used in association with IF statements. When you want to set a logical variable LVAR to true you use "LVAR=.TRUE.". For false use "LVAR=.FALSE." In practice the computer usually stores an integer 0 in memory for false and integer 1 for true. The normal logical variable occupies 1 byte of space. Source: CoolInterview.com

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