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Logging double values uses loses precision #25

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anjohnson opened this issue Mar 2, 2024 · 1 comment
Closed

Logging double values uses loses precision #25

anjohnson opened this issue Mar 2, 2024 · 1 comment

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@anjohnson
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The code here for logging float and double values to JSON uses a "%g" conversion, which is insufficient for some of my users. The yajl_gen implementation in EPICS 7 uses "%.17g" and appends ".0" if the previous string only contains digits and/or a minus sign. I will be developing a PR shortly to use that approach instead (or possibly just call yajl_gen to do it).
@anjohnson
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Duplicate of #29, the newer issue better describes my preferred solution.

anjohnson added a commit to anjohnson/caPutLog that referenced this issue Jul 17, 2024
@anjohnson
Maximize precision of floating-point values
3ba32d7 
Also adds ".0" to distinguish floats from integers.
Fixes epics-modules#29 (and epics-modules#25)
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