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Remove format_float and use _PyOS_double_to_string instead.

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This commit is contained in:
Mark Dickinson 2009-04-29 21:56:53 +00:00
parent 92fcc9c991
commit df108ca324
2 changed files with 27 additions and 82 deletions
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14
Python/pystrtod.c
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@ -595,6 +595,20 @@ PyOS_ascii_formatd(char *buffer,
return buffer;
}
/* Precisions used by repr() and str(), respectively.
The repr() precision (17 significant decimal digits) is the minimal number
that is guaranteed to have enough precision so that if the number is read
back in the exact same binary value is recreated. This is true for IEEE
floating point by design, and also happens to work for all other modern
hardware.
The str() precision (12 significant decimal digits) is chosen so that in
most cases, the rounding noise created by various operations is suppressed,
while giving plenty of precision for practical use.
*/
PyAPI_FUNC(void)
_PyOS_double_to_string(char *buf, size_t buf_len, double val,
char format_code, int precision,