+{ "987654321098765432" } [ 987654321098765432 "%d" sprintf ] unit-test
+{ "987654321098765432.0" } [ 987654321098765432 "%.1f" sprintf ] unit-test
+{ "987654321098765432." } [ 987654321098765432 "%.0f" sprintf ] unit-test
+{ "9.8765432109876543200e+17" } [ 987654321098765432 "%.19e" sprintf ] unit-test
+{ "9.876543210987654320e+17" } [ 987654321098765432 "%.18e" sprintf ] unit-test
+{ "9.87654321098765432e+17" } [ 987654321098765432 "%.17e" sprintf ] unit-test
+{ "9.8765432109876543e+17" } [ 987654321098765432 "%.16e" sprintf ] unit-test
+{ "9.876543210987654e+17" } [ 987654321098765432 "%.15e" sprintf ] unit-test
+{ "9.87654321098765e+17" } [ 987654321098765432 "%.14e" sprintf ] unit-test
+{ "9.8765432109877e+17" } [ 987654321098765432 "%.13e" sprintf ] unit-test
+{ "9.876543210988e+17" } [ 987654321098765432 "%.12e" sprintf ] unit-test
+{ "9.87654321099e+17" } [ 987654321098765432 "%.11e" sprintf ] unit-test
+{ "9.8765432110e+17" } [ 987654321098765432 "%.10e" sprintf ] unit-test
+{ "9.876543211e+17" } [ 987654321098765432 "%.9e" sprintf ] unit-test
+{ "9.87654321e+17" } [ 987654321098765432 "%.8e" sprintf ] unit-test
+{ "9.8765432e+17" } [ 987654321098765432 "%.7e" sprintf ] unit-test
+{ "9.876543e+17" } [ 987654321098765432 "%.6e" sprintf ] unit-test
+{ "9.87654e+17" } [ 987654321098765432 "%.5e" sprintf ] unit-test
+{ "9.8765e+17" } [ 987654321098765432 "%.4e" sprintf ] unit-test
+{ "9.877e+17" } [ 987654321098765432 "%.3e" sprintf ] unit-test
+{ "9.88e+17" } [ 987654321098765432 "%.2e" sprintf ] unit-test
+{ "9.9e+17" } [ 987654321098765432 "%.1e" sprintf ] unit-test
+{ "1.e+18" } [ 987654321098765432 "%.0e" sprintf ] unit-test
+