Error Return Type Mismatch In Function Fortran
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Type Mismatch In Argument Fortran
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Type Mismatch In Argument Passed Real(4) To Real(8)
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Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Return type mismatch of function up vote 0 down vote favorite I want to diagonalize a complex matrix in fortran90 with a function. This is the fortran type casting function I use !========================================================================== function inv(A,n) Implicit none integer :: n complex*16, dimension(n,n):: A complex*16, dimension(n,n):: inv complex*16,allocatable,dimension(:)::WORK integer,allocatable,dimension(:)::IPIV integer i,j,info,error allocate(WORK(n),IPIV(n),stat=error) if (error.ne.0)then print *,"error:not enough memory" stop end if call ZGETRF(n,n,A,n,IPIV,info) if(info .eq. 0) then write(*,*)"succeded" else write(*,*)"failed" end if call ZGETRI(n,A,n,IPIV,WORK,n,info) if(info .eq. 0) then write(*,*)"succeded" inv=A else write(*,*)"failed" end if !deallocate(A,IPIV,WORK,stat=error) !if (error.ne.0)then ! print *,"error:fail to release" ! stop !end if end function inv and I simply call it with Wmattemp=inv(Wmattemp,nsit) where its type is complex*16, allocatable :: Wmattemp(:,:) But I obtain this error when I compile with gfortran -fdefault-real-8 code.f90 -llapack code.f90:217.19: Wmattemp=inv(Wmattemp,nsit) 1 Error: Return type mismatch of function 'inv' at (1) (INTEGER(4)/COMPLEX(8)) code.f90:217.16: Wmattemp=inv(Wmattemp,nsit) 1 Error: The reference to function 'inv' at (1) either needs an explicit INTERFACE or the rank is incorrect II'm not a fortran expert so I cannot find what is the problem. Now I added to the main progr
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Community Forums > Other Sciences > Programming and Computer Science > Dismiss Notice Join Physics Forums Today! The friendliest, high quality science and math community on the planet! Everyone who loves science is here! Type mismatch problem FORTRAN 77 Jul 20, 2012 #1 https://www.physicsforums.com/threads/type-mismatch-problem-fortran-77.622218/ Peptid Hi all, I am trying to run a long FORTRAN 77 code in my laptop. Document contains a makefile and it is instructed to use 'make pgi' command to compile. Beside many warnings, each time I enter that command, it returns me ' Return type mismatch of function 'cmod' at (1) (REAL(4)/REAL(8)) analsubs.f90:766.13' The relevant part of the code is: REAL*8 FUNCTION ERREV(NN,QR,QI,MS,MP,ARE,MRE) REAL*8 QI(NN), QR(NN),MS,MP,ARE,MRE,E E =CMOD(QR(1),QI(1))*MRE/(ARE+MRE) DO 10 I=1,NN E = E*MS+CMOD(QR(I),QI(I)) 10 CONTINUE ERREV type mismatch = E*(ARE+MRE)-MP*MRE END FUNCTION errev and part for 'cmod' is: REAL*8 FUNCTION CMOD(R,I) REAL*8 R,I,AR,AI,DABS,DSQRT AR = DABS(R) AI = DABS(I) IF (AR .GE. AI) GO TO 10 CMOD = AI*DSQRT(1.0D0+(AR/AI)**2) RETURN 10 IF (AR .LE. AI) GO TO 20 CMOD = AR*DSQRT(1.0D0+(AI/AR)**2) RETURN 20 CMOD = AR*DSQRT(2.0D0) END FUNCTION cmod I don't understand the reason of the error since I believe that both AR and AI in cmod are defined in type REAL*8. Is there anyone who has type mismatch in an idea about it? Thanks in advance, Batu Peptid, Jul 20, 2012 Phys.org - latest science and technology news stories on Phys.org •Game over? Computer beats human champ in ancient Chinese game •Simplifying solar cells with a new mix of materials •Imaged 'jets' reveal cerium's post-shock inner strength Jul 20, 2012 #2 gsal Stop using "D" as a prefix in the intrinsic functions and tell me what happens. Also, please post the entire error message...I am sure that "1" is strategically placed under some line to indicate exactly where fortran thinks the problem is. gsal, Jul 20, 2012 Jul 20, 2012 #3 AlephZero Science Advisor Homework Helper I don't thinkg gsal's advaice is relevant. (the D prefixes might not be necessary, but that doesn't make them wrong!) You need to add the line REAL*8 CMOD in function ERREV. Each function or subroutine of a Fortran program is compiled independet of everyting else. You didn't declare the type of CMOD in ERREV, so the compiler assumes it is REAL*4. Later, when all the functions are linked together to make the executable program, that turns out to be wrong and you get the error. AlephZero, Jul 20, 2012 Jul 21, 2012 #4 gsal I admit, maybe the removal of "D" is not quite the best thing to do...I forgot that you are using Fortran77....I think in Fortran90 (and beyond), the "D" would b