Details
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Task
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Status: Open (View Workflow)
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Major
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Resolution: Unresolved
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None
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None
Description
Whilst the limitation described below is in libfmt, i.e. see (w/ thanks serg):
#include <fmt/format-inl.h>
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#include <iostream>
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int main() { |
std::cout << fmt::format("The answer is {:.5f}.\n", 42); |
}
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The resulting outcome in SFORMAT (for an INT passed as input with a FLOAT or DECIMAL requested formatting) is not formatted,unless the input is made into a float already):
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10.7.0 53b2c1f4664a3cb90f583979d9aa2771b7e1c98d (Debug) preview-10.7-MDEV-25015-sformat |
10.7.0-dbg>select SFORMAT ('FLOAT {:.5f}',3);
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+-----------------------------+
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| SFORMAT ('FLOAT {:.5f}',3) |
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+-----------------------------+
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| NULL |
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+-----------------------------+
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1 row in set, 1 warning (0.000 sec)
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10.7.0-dbg>show warnings;
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+---------+------+-------------------------------------------------------------+
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| Level | Code | Message |
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+---------+------+-------------------------------------------------------------+
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| Warning | 4183 | SFORMAT error: precision not allowed for this argument type |
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+---------+------+-------------------------------------------------------------+
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1 row in set (0.000 sec)
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10.7.0-dbg>select SFORMAT ('FLOAT {:.5f}',3.1);
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+-------------------------------+
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| SFORMAT ( 'FLOAT {:.5f}',3.1) |
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+-------------------------------+
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| FLOAT 3.10000 |
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+-------------------------------+
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1 row in set (0.000 sec)
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10.7.0-dbg>select SFORMAT ('FLOAT {:.5f}',3.);
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+------------------------------+
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| SFORMAT ('FLOAT {:.5f}',3.) |
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+------------------------------+
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| FLOAT 3.00000 |
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+------------------------------+
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1 row in set (0.000 sec)
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One would expect that an INT would readily be converted to FLOAT/DECIMAL.
This libfmt limitation can likely be easily accounted for in the code.
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