iff means if and only if, but readers without that knowledge might
assume this to be a spelling mistake. To me, this seems like
exclusionary language that is unnecessary. Simply using "if and only if"
instead should suffice.
```
In file included from sprintf.c:1256:
./vsnprintf.c:833:8: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
IS_PRI_EXTRA_MARK(fmt)) {
^~~~~~~~~~~~~~~~~~~~~~
./vsnprintf.c:826:34: note: expanded from macro 'IS_PRI_EXTRA_MARK'
strncmp((s)+1, PRI_EXTRA_MARK+1, \
~~~~~~~~~~~~~~^~
./vsnprintf.c:833:8: note: use array indexing to silence this warning
./vsnprintf.c:826:34: note: expanded from macro 'IS_PRI_EXTRA_MARK'
strncmp((s)+1, PRI_EXTRA_MARK+1, \
^
1 warning generated.
```
* vsnprintf.c (BSD_vfprintf): sign and hex-prefix should not be
counted in precision. [ruby-dev:47714] [Bug #8916]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58210 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
actually check its availability rather to check GCC's version.
* configure.in (WARN_UNUSED_RESULT): moved to here.
* configure.in (RUBY_FUNC_ATTRIBUTE): change function declaration
to return int rather than void, because it makes no sense for a
warn_unused_result attributed function to return void.
Funny thing however is that it also makes no sense for noreturn
attributed function to return int. So there is a fundamental
conflict between them. While I tested this, I confirmed both
GCC 6 and Clang 3.8 prefers int over void to correctly detect
necessary attributes under this setup. Maybe subject to change
in future.
* internal.h (UNINITIALIZED_VAR): renamed to MAYBE_UNUSED, then
moved to configure.in for the same reason we move
WARN_UNUSED_RESULT.
* configure.in (MAYBE_UNUSED): moved to here.
* internal.h (__has_attribute): deleted, because it has no use now.
* string.c (rb_str_enumerate_lines): refactor macro rename.
* string.c (rb_str_enumerate_bytes): ditto.
* string.c (rb_str_enumerate_chars): ditto.
* string.c (rb_str_enumerate_codepoints): ditto.
* thread.c (do_select): ditto.
* vm_backtrace.c (rb_debug_inspector_open): ditto.
* vsnprintf.c (BSD_vfprintf): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56169 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vsnprintf.c (BSD_vfprintf): make PRI_EXTRA_MARK_LEN an explicit
int to suppress type-limits warnings by old gcc.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55437 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* include/ruby/ruby.h (PRIsVALUE), vsnprintf.c (BSD_vfprintf): add
RUBY_PRI_VALUE_MARK to reduce danger of accidental conflict with
plain "%i". binary incompatible with extension libraries using
PRIsVALUE and built for 2.1 and earlier. [EXPERIMENTAL]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48262 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vsnprintf.c (BSD_vfprintf): fix string width when precision is
given. as the result of `memchr` is NULL or its offset from the
start cannot exceed the size, the comparison was always false.
[ruby-core:62737] [Bug #9861]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46098 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vsnprintf.c (BSD_vfprintf): initialize cp so that size is 0 in the
commented case. fix an accidental bug at r16716.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42977 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vsnprintf.c (MAXEXP, MAXFRACT): calculate depending on constants in
float.h.
* vsnprintf.c (BSD_vfprintf): limit length for cvt() to get rid of
buffer overflow. [ruby-core:57023] [Bug #8864]
* vsnprintf.c (exponent): make expbuf size more precise.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42918 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* sprintf.c (ruby__sfvextra): [EXPERIMENTAL] use inspect instead of
to_s if plus flag is given.
* vsnprintf.c (BSD_vfprintf): pass sign flag.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35779 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
patched by Peter Weldon <peter.weldon AT null.net>
[ruby-core:33985]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30435 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Peter Zhu
Nobuyoshi Nakada
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Urabe, Shyouhei
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