codee-com/open-catalog
Vedi su GitHub[Fortran] Replace `if (integer)` with `if (logical)`
Open
#38 aperta il 24 set 2024
Fortrangood first issuenew check
Metriche repository
- Star
- (105 star)
- Metriche merge PR
- (Metriche PR in attesa)
Descrizione
In Fortran there is no equivalence between logical and integer variables, so 0 is not a replacement for .false., and 1 does not replace .true.. Yet, some compilers (ifort) will happily compile if (1).
Example:
if (0) write(*, *) 'Test is false'
if (1) write(*, *) 'Test is true'
A slightly more meaningful example
integer val
val = 1
if (val) write(*, *) 'Test is true'
This should be replaced by
integer val
val = 1
if (val > 0) write(*, *) 'Test is true'