FreeCalypso > hg > freecalypso-sw
changeset 147:4ac657b95f52
gsm-fw: sprintf %f: handle infinities and NaNs
| author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
|---|---|
| date | Thu, 14 Nov 2013 19:16:38 +0000 |
| parents | 4d629b6bbcfd |
| children | 63750f70796d |
| files | gsm-fw/sprintf/float.c |
| diffstat | 1 files changed, 9 insertions(+), 0 deletions(-) [+] |
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--- a/gsm-fw/sprintf/float.c Thu Nov 14 19:03:52 2013 +0000 +++ b/gsm-fw/sprintf/float.c Thu Nov 14 19:16:38 2013 +0000 @@ -67,6 +67,15 @@ double fract, tmp; char *start, *t; + /* first order of business: weed out infinities and NaNs */ + if (isinf(number)) { + if (number < 0) + sign = '-'; + return _sprintf_field(op, width, flags, sign, "Inf", 3, 0, 0); + } + if (isnan(number)) + return _sprintf_field(op, width, flags, sign, "NaN", 3, 0, 0); + /* OK, we know it's a valid real like in the good old VAX days */ if (number < 0) { sign = '-'; number = -number;