fortran90

I know that IACHAR(s) returns the code for the ASCII character in the first character position of the string s, but I need to convert the entire string to an integer. I also have a few number of strings (around 30 strings, each consists of at most 20 characters). Is there any way to convert each one of them to a unique integer in Fortran 90? You can read a string into an integer variable: module str2int_mod contains elemental subroutine str2int(str,int,stat) implicit none ! Arguments character(len=*),intent(in) :: str integer,intent(out) :: int integer,intent(out) :: stat read(str,*,iostat

When I try to parallelize my program in Fortran90 by OpenMP, I get a segmentation fault error. !$OMP PARALLEL DO NUM_THREADS(4) & !$OMP PRIVATE(numstrain, i) do irep = 1, nrep do i=1, 10 PRINT *, numstrain(i) end do end do !$OMP END PARALLEL DO I find that if I comment out "PRINT *, numstrain(i)" or remove openmp flags it works without error. I think it is because memory access conflict happens when I access numstrain(i) in parallel. I already declared i and numstrain as private variables. Could someone please give me some idea why it is the case? Thank you so much. :) UPDATE: I modified the

In Fortran, there are two standard ways to return a result from a function. The first one is by assigning the return value of the function to the function name. function foo() integer :: foo foo = 10 end function foo The second form, standardized in Fortran 90 is through a "result" variable. function foo result(res) integer :: res res = 10 end function foo Calling either form of the function returns the value 10. My question is, what was the rationale of the Fortran 90 committee for introducing result variables? Were they standardizing a common practice? Or were they allowing programs to be

I got this message when i tried to install gfortran. ~$ brew install gfortran Error: No available formula for gfortran GNU Fortran is now provided as part of GCC, and can be installed with: brew install gcc My question is how to install gfortran with homebrew or port? or If now GNU Fortran is a part of GCC How can i compile fortran code using gcc? I'm not sure may be i've misunderstood something i remember that the last time i still can use gfortran to compile my code but now it doesn't work. Further information: when i use command brew list i still see that gfortran is there but can not use