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feat!: 💥 dimensionless quantities refactored

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Dimensionless quantities are now represented by quantity types rather
than by plain representation types. Only dimensionless quantities with
`unitless` unit are implicitly convertible from representation types.

`units::exp()` now is a function doing std::exp() on a representation
type (previous `units::exp` class template was renamed to
`units::exponent`).

BREAKING_CHANGE: gcc-9.3 support removed
BREAKING_CHANGE: `exp` and `Exp` renamed to `exponent` and `Exponent`
Resolves #27
Resolves #42
This commit is contained in:
Mateusz Pusz
2020-09-08 11:02:16 +02:00
parent c8b60b80c1
commit 563b358d5e
47 changed files with 599 additions and 422 deletions
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example/capacitor_time_curve.cpp
+2 -2
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@@ -24,7 +24,7 @@
#include <units/physical/si/resistance.h>
#include <units/physical/si/time.h>
#include <units/physical/si/voltage.h>
#include <cmath>
#include <units/math.h>
#include <iostream>
int main()
@@ -41,7 +41,7 @@ int main()
constexpr auto R = 4.7q_kR;
for (auto t = 0q_ms; t <= 50q_ms; ++t) {
const Voltage AUTO Vt = V0 * std::exp(-t / (R * C));
const Voltage AUTO Vt = V0 * units::exp(-t / (R * C));
std::cout << "at " << t << " voltage is ";