[petsc-dev] PetscOptionsGetString

[Shiyuan]

Hi,
In the version of 3.1-p5, PetscOptionsGetString() can be used to get a char
input. It seems that it doesn't work any more in development version.
 PetscOptionsGetString(PETSC_NULL,"-Mode",&Mode,1,&flag);
This gives me a \0. How can I get the input of only one character in dev?
Thanks.
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