realfmt
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Description
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Default C printing format for real numbers.
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Type
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String, read/write
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Default value
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"%.10g"
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Notes
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1. The
parameter
realfmt requires a format of the form
%[f][w][.p]c where
f (flags) is an optional string of 1 to 3 characters from the list
'#0 -+';
w (width) an optional string of 1 to 3 digits (the first one cannot be
0);
p (precision) an optional string of 1 to 2 digits and
c (conversion specifier) a character from the list
'eEfgGaAjy' (see
formattext for further details).
2. The conversion specifiers
j and
y are Mosel extensions to the C standard that support the optional flags and width (precision is ignored): they produce a reversible textual representation of the real number (
i.e. converting the string back to real restores the exact original value). The format
'j' generates a decimal notation similar to the specification ECMA-262 (
e.g.
"123.456") while the format
'y' produces a scientific notation in all cases (
e.g.
"1.2345e2").
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See also
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