petsc-3.12.5 2020-03-29

PetscTestFile

checks for the existence of a file

PetscErrorCode  PetscTestFile(const char fname[], char mode, PetscBool  *flg)

Not Collective

	fname	- the filename
	mode	- either 'r', 'w', 'x' or '\0'

flg -the file exists and satisfies the mode

Notes: if mode is '\0', no permissions checks are performed

intermediate