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How to fix "Fortran runtime error attempt to deallocate unallocated"

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zako

发布时间: 2020-1-3 05:33

正文摘要:

Hello everybody,I need your help about an error message when i run script. I don't know how to fix it. "Fortran runtime error attempt to deallocate unallocated".

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sobereva 发表于 Post on 2020-1-3 22:51:54

Replace line 41 with below content

if (allocated(nat)) deallocate(nat)
if (allocated(atom_name)) deallocate(atom_name)
if (allocated(xat)) deallocate(xat)
if (allocated(yat)) deallocate(yat)
if (allocated(zat)) deallocate(zat)

复制代码

sobereva 发表于 Post on 2020-1-3 10:15:44

That means your code has a bug. The code is employing deallocate( ) routine to deallocate an allocatable array, however it has not been allocated before.
It is best to add a conditional judgment statement before this line as: if (allocated(foo)) ...

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