On 7 February 2016, Bram Moolenaar <[email protected]> wrote:
>
> Patch 7.4.1285
> Problem: Cannot measure elapsed time.
> Solution: Add reltimefloat().
[...]
This is useful, thank you.
Going on a tangent: it would be nice if floating point numbers had
automatic stringification. Example:
:let a = 1.1
:echo a
1.1
:echo ' ' . a
E806: using Float as a String
E15: Invalid expression: ' ' . a
To handle that you have to go through printf():
:echo printf(' %g', a)
1.1
There's also a small inconsistency between %g (and echo), and %f:
:echo printf(' %f', a)
1.100000
reltimefloat() is a good illustration why all this matters, and how
doing things the old way might still be less awkward than using the new
function:
if has('float') && exists('*reltimefloat')
echo printf('staring for %g seconds', reltimefloat(reltime(delta)))
endif
Compare that to the old trick:
echo 'staring for ' . split(reltimestr(reltime(delta)))[0] . ' seconds'
Summary: it would be nice if floating point numbers in a string
context would be stringified to printf('%g', number).
/lcd
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