076. Use d0 or _kind to make a constant double precision.#

topic: Data types

Note

This tip is a draft1.

Use d0 or _kind to make a constant double precision. Merely having many decimal places in a literal constant does not do so.

real(kind(1.0d0)) :: pi pi = 3.14159265358979323846 ! RHS is single precision

probably does not do what the programmer intends!



1

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