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Re: glibc's snprintf can fail with ENOMEM: replacement needed
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From: |
Eric Blake |
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Subject: |
Re: glibc's snprintf can fail with ENOMEM: replacement needed |
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Date: |
Fri, 11 Apr 2008 06:04:10 -0600 |
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User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.12) Gecko/20080213 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
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According to Bruno Haible on 4/11/2008 4:43 AM:
| 1) for float to decimal conversion, think of snprintf (NULL, "%Le", x)
| or snprintf (NULL, "%Lf", x)
|
| At least in the first case, I don't see how the number of output bytes could
| be determined without doing the actual conversion.
True, but in the first case, the maximum number of significant digits is
known in advance, so you can still use a fixed-size stack-allocated buffer
to do the work.
- --
Don't work too hard, make some time for fun as well!
Eric Blake address@hidden
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