col_scale[LANDAU_MAX_Q_FACE = {0};

but then the compiler may complain about not initializing enough values. Googling this type of initialization might help, something C initialize arrays "may be used uninitialized"

On Apr 11, 2021, at 2:05 PM, Mark Adams <mfadams@lbl.gov> wrote:

This warning went away. i don't know why.

On Sun, Apr 11, 2021 at 2:10 PM Mark Adams <mfadams@lbl.gov> wrote:
I get this error in CI with complex float: https://gitlab.com/petsc/petsc/-/jobs/1170144554

I put in code earlier to fix this warning about uninitialized vars, but now it does not seem to work:

/home/glci/builds-stage1/AbTGp5-t/0/petsc/petsc/src/ts/utils/dmplexlandau/plexland.c:414:94: error: ‘col_scale[4]’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
2251 PetscScalar vals[LANDAU_MAX_Q_FACE*LANDAU_MAX_Q_FACE],row_scale[LANDAU_MAX_Q_FACE],col_scale[LANDAU_MAX_Q_FACE];

Yet I have code to initialize col_scale:

for (q = 0; q < LANDAU_MAX_Q_FACE; q++) col_scale[q] = 0.0; // suppress warnings

I get a similar error with an integer array.

Any suggestions?