diff options
Diffstat (limited to 'Python')
| -rw-r--r-- | Python/pystrtod.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/Python/pystrtod.c b/Python/pystrtod.c index 2be383442d..79f63e2603 100644 --- a/Python/pystrtod.c +++ b/Python/pystrtod.c @@ -660,16 +660,15 @@ _PyOS_double_to_string(char *buf, size_t buf_len, double val, /* Supplied precision is unused, must be 0. */ if (precision != 0) return; + /* 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. */ precision = 17; format_code = 'g'; break; - case 's': /* str format */ - /* Supplied precision is unused, must be 0. */ - if (precision != 0) - return; - precision = 12; - format_code = 'g'; - break; default: assert(0); return; |