We also increased the hashtable size by 1 bit as it significantly degraded the ratio. Thus even level 1 might slightly improve.
PiperOrigin-RevId: 621456036
This CL makes the following substitutions.
* assert.h -> cassert
* math.h -> cmath
* stdarg.h -> cstdarg
* stdio.h -> cstdio
* stdlib.h -> cstdlib
* string.h -> cstring
stddef.h and stdint.h are not migrated to C++ headers.
PiperOrigin-RevId: 309074805