These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 0.99 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/libtommath-1.3.0::gentoo  USE="-doc -examples -static-libs" 628 KiB
[ebuild  N     ] dev-libs/libtomfloat-0.02-r1::gentoo  148 KiB

Total: 2 packages (2 new), Size of downloads: 776 KiB