Use C_SIZE_T consistently
Use C_SIZE_T consistently

smharper/openmc,walshjon/openmc,paulromano/openmc,mit-crpg/openmc,shikhar413/openmc,paulromano/openmc,walshjon/openmc,smharper/openmc,liangjg/openmc,paulromano/openmc,liangjg/openmc,mit-crpg/openmc,paulromano/openmc,walshjon/openmc,smharper/openmc,wbinventor/openmc,wbinventor/openmc,johnnyliu27/openmc,walshjon/openmc,smharper/openmc,wbinventor/openmc,johnnyliu27/openmc,mit-crpg/openmc,shikhar413/openmc,wbinventor/openmc,amandalund/openmc,liangjg/openmc,amandalund/openmc,mit-crpg/openmc,amandalund/openmc,johnnyliu27/openmc,shikhar413/openmc,johnnyliu27/openmc,amandalund/openmc,liangjg/openmc,shikhar413/openmc