stop using teletype font for `constexpr` function

[zygoloid]

The term "constexpr function" is currently formatted as "constexpr function". This is misleading, since such functions need not use the constexpr specifier. Instead, we should only use the teletype font when referring to the keyword, matching how we treat the terms "inline function" and "function declared with the inline specifier".

[sigfpe]

Makes sense.-------- Original message --------From: Richard Smith notifications@github.com Date: 11/4/2015 2:00 PM (GMT-08:00) To: cplusplus/draft draft@noreply.github.com Subject: [draft] stop using teletype font for constexpr function (#559)
The term "constexpr function" is currently formatted as "constexpr function". This is misleading, since such functions need not use the constexpr specifier. Instead, we should only use the teletype font when referring to the keyword, matching how we treat the terms "inline function" and "function declared with the inline specifier".

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[tkoeppe]

What's the desired replacement? Just "constexpr function" without typographic distinctions? Or a real term, like "constant-expression function"?

[jensmaurer]

Duplicate of #825.