How to input a string value of unknown length from console in Fortran?

Asked Apr 29 '22 at 12:55

Active Apr 29 '22 at 13:15

Viewed 24 times

I want to take a string input and display it in Fortran. I tried doing this

program name
    implicit none
    
    character(:), allocatable :: a
    print *, "Enter a name: "
    read(*,*) a
    print *, "Hello, ", a, "!"

end program name

But I get an error

Enter a name: 
Coder

Program received signal SIGSEGV: Segmentation fault - invalid memory reference.

Backtrace for this error:
#0  0x657724a3
#1  0x656ff44d
#2  0x4010d0

How do i solve it? I just want to take someone's name and display it

edited Apr 29 '22 at 13:15

francescalus

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asked Apr 29 '22 at 12:55

Ruthvik

Does this answer your question? [Fortran: Allocating memory from file read](https://stackoverflow.com/questions/22373052/fortran-allocating-memory-from-file-read) – veryreverie Apr 29 '22 at 12:57
@veryreverie, this is for reading from console not from file! – Ruthvik Apr 29 '22 at 12:59
It's the same problem though: you haven't allocated `a` before reading. – veryreverie Apr 29 '22 at 13:00
@veryreverie, a code solution would be helpful as im new – Ruthvik Apr 29 '22 at 13:02

How to input a string value of unknown length from console in Fortran?

0 Answers0