[#mp_units-unit_symbol_solidus]
= xref:mp_units.adoc[mp_units]::unit_symbol_solidus
:relfileprefix: ../
:mrdocs:

Specifies how the solidus (`/`) is used when formatting a unit symbol's denominator

== Synopsis

Declared in `<mp‐units/framework/unit_symbol_formatting.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
enum class unit_symbol_solidus : int8_t;
----

== Members

[cols="1,4"]
|===
| Name| Description
| `one_denominator` 
| A solidus is used only if there is exactly one unit in the denominator (e.g. `m/s`; `kg m⁻¹ s⁻¹`)
| `always` 
| A solidus is always used for a non‐empty denominator (e.g. `m/s`; `kg/(m s)`)
| `never` 
| A solidus is never used; negative exponents are used instead (e.g. `m s⁻¹`; `kg m⁻¹ s⁻¹`)
| `default_solidus` 
| The default solidus behavior, equal to `one_denominator`
|===



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