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* vsnprintf.c (cvt): set first byte of buf to NUL for the case when

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no bytes are written to the buf. [ruby-dev:43062]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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naruse 2011-01-18 17:56:10 +00:00
parent 0858cbf3fd
commit b680cd7d05
2 changed files with 6 additions and 0 deletions
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ChangeLog
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@ -1,3 +1,8 @@
Wed Jan 19 02:54:04 2011 NARUSE, Yui <naruse@ruby-lang.org>
* vsnprintf.c (cvt): set first byte of buf to NUL for the case when
no bytes are written to the buf. [ruby-dev:43062]
Tue Jan 18 23:04:51 2011 Tanaka Akira <akr@fsij.org>
* gc.h: parenthesize macro arguments.

1
vsnprintf.c
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@ -1197,6 +1197,7 @@ cvt(value, ndigits, flags, sign, decpt, ch, length, buf)
else {
digits = BSD__dtoa(value, mode, ndigits, decpt, &dsgn, &rve);
}
buf[0] = 0; /* rve - digits may be 0 */
memcpy(buf, digits, rve - digits);
xfree(digits);
rve = buf + (rve - digits);