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  1. PO
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    <p>Thank you all for your help. Here's the code I wrote which should work similar to <code>num2str()</code> in MATLAB. It has additional functionality to show arrays and matrices as well.</p> <pre><code>module module_common_functions !GLOBAL FUNCTIONS public :: num2str interface num2str module procedure num2str_int module procedure num2str_real module procedure num2str_array module procedure num2str_matrix end interface contains function num2str_int(number) implicit none integer,intent(in)::number character(len=10)::num2str_int character(len=10):: tmp write(tmp,'(I6)')number num2str_int=trim(adjustl(tmp)) return end function function num2str_real(number) implicit none real,intent(in)::number character(len=32):: tmp ! Deferred length allocatable character result. character(len=:), allocatable ::num2str_real ! Format specifier changed to use full length. write(tmp,'(F32.4)')number ! Reallocation on assignment means length of result will ! be set to match length of right hand side expression. ! Note ordering of trim and adjustl. num2str_real=trim(adjustl(tmp)) end function function num2str_array(number,col) implicit none integer::i,col real, dimension(col)::number character(len=32):: tmp character(len=33*col)::num2str_array num2str_array ='' do i=1,col write(tmp,'(F12.4)') number(i) num2str_array = trim(num2str_array)//adjustl(trim(tmp))//',' end do return end function function num2str_matrix(number,row,col) implicit none integer::i,j,row,col real,dimension(row,col)::number character(len=32):: tmp character(len=33*row*col)::num2str_matrix num2str_matrix='' do i=1,row do j=1,col write(tmp,'(F12.4)') number(i,j) num2str_matrix= trim(num2str_matrix)//adjustl(trim(tmp))//',' end do end do return end function end module </code></pre>
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    1. POCreating an overloaded function to be used in message logging
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    1. USIanH
    1. USAmitava
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    1. CONeed a bit more help. Currently the posted program `num2str(x)` returns a string which is not trimmed. Hence, I need to use `trim(num2str(x))`. Is there any way to fix this?
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    2. COTwo options: a) Determine and specify the exact length of the result in the specification part of the function itself, such that there are no trailing blanks or b) use deferred length allocatable character (added to the language in the Fortran 2003 standard) and do the trim inside the function.
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    3. COCould you please give an example of the option `(b)` you mentioned. I don't think option `(a)` is feasible for my case.
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      1. USAmitava
 

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