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How about real(x, selected_real_kind(20)) ?
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not homework, need to modify a lot of lapack subroutines to make them work under real*16, thus it would be most convenient to find out a replacement for dble, otherwise the modification would be terrible ...
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real(x,16)
There is not a specific name similar to dble for this.
There is not a specific name similar to dble for this.
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QEXT
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QEXT does go way back, to DEC platforms even prior to VMS, and to HP3000. Unlike dble() and real(x, KIND=...), it was neverdefined ina standard, so is not included in many compilers with equivalent functionality.
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Ah, yes, missed QEXT. Sorry about that. As Tim notes, it is non-standard.
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Thank allso so so much! It works! But I cannot find it in intel fortran manual, maybe due to the fact that it is nonstandard, however, intel supports it, that's enough!
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It's in the Language Reference, A-Z section.
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