Preset memory to zero?

[smedvedoff]

Is there a way to force memory to be preset to zero using IVF? We have some legacy Fortran code that was being built with CVF; it relies on memory being preset to zero (many variables are not explicitly initialized). When we build it using IVF, which apparently doesn't preset memory to zero, we get a slew of runtime errors, as you would expect. Ultimately the code should be corrected so that all variables are initialized, but in the meantime, is there something we can do?

[jimdempseyatthecove]

/Qzero[-] enable/disable(DEFAULT) implicit initialization to zero of local
 scalar variables of intrinsic type INTEGER, REAL, COMPLEX, 
 or LOGICAL that are not saved or initialized

/Qnobss-init disable placement of zero-initialized vars in BSS (use DATA)

This will not handle wipe of allocated memory

Jim Dempsey

[Steven_L_Intel1]

/Qzero /Qsave should help. You need to use /Qsave. CVF did not initialize to zero but it did apply SAVE semantics by default which might make it look as if it zero-initialized.

[smedvedoff]

Jim and Steve -

Thanks for the help.

- Steve