kotovalexarian-likes-github/ruby--ruby
1
0
Fork 0
mirror of https://github.com/ruby/ruby.git synced 2022-11-09 12:17:21 -05:00
Code Releases Activity
ruby--ruby/internal
History
卜部昌平 4ff3f20540 add #include guard hack 
According to MSVC manual (*1), cl.exe can skip including a header file
when that:

- contains #pragma once, or
- starts with #ifndef, or
- starts with #if ! defined.

GCC has a similar trick (*2), but it acts more stricter (e. g. there
must be _no tokens_ outside of #ifndef...#endif).

Sun C lacked #pragma once for a looong time.  Oracle Developer Studio
12.5 finally implemented it, but we cannot assume such recent version.

This changeset modifies header files so that each of them include
strictly one #ifndef...#endif.  I believe this is the most portable way
to trigger compiler optimizations. [Bug #16770]

*1: https://docs.microsoft.com/en-us/cpp/preprocessor/once
*2: https://gcc.gnu.org/onlinedocs/cppinternals/Guard-Macros.html
2020-04-13 16:06:00 +09:00
..
array.h add #include guard hack 2020-04-13 16:06:00 +09:00
bignum.h add #include guard hack 2020-04-13 16:06:00 +09:00
bits.h add #include guard hack 2020-04-13 16:06:00 +09:00
class.h add #include guard hack 2020-04-13 16:06:00 +09:00
compar.h add #include guard hack 2020-04-13 16:06:00 +09:00
compile.h add #include guard hack 2020-04-13 16:06:00 +09:00
compilers.h add #include guard hack 2020-04-13 16:06:00 +09:00
complex.h add #include guard hack 2020-04-13 16:06:00 +09:00
cont.h add #include guard hack 2020-04-13 16:06:00 +09:00
dir.h add #include guard hack 2020-04-13 16:06:00 +09:00
enc.h add #include guard hack 2020-04-13 16:06:00 +09:00
encoding.h add #include guard hack 2020-04-13 16:06:00 +09:00
enum.h add #include guard hack 2020-04-13 16:06:00 +09:00
enumerator.h add #include guard hack 2020-04-13 16:06:00 +09:00
error.h add #include guard hack 2020-04-13 16:06:00 +09:00
eval.h add #include guard hack 2020-04-13 16:06:00 +09:00
file.h add #include guard hack 2020-04-13 16:06:00 +09:00
fixnum.h add #include guard hack 2020-04-13 16:06:00 +09:00
gc.h add #include guard hack 2020-04-13 16:06:00 +09:00
hash.h add #include guard hack 2020-04-13 16:06:00 +09:00
imemo.h add #include guard hack 2020-04-13 16:06:00 +09:00
inits.h add #include guard hack 2020-04-13 16:06:00 +09:00
io.h add #include guard hack 2020-04-13 16:06:00 +09:00
load.h add #include guard hack 2020-04-13 16:06:00 +09:00
loadpath.h add #include guard hack 2020-04-13 16:06:00 +09:00
math.h add #include guard hack 2020-04-13 16:06:00 +09:00
missing.h add #include guard hack 2020-04-13 16:06:00 +09:00
mjit.h add #include guard hack 2020-04-13 16:06:00 +09:00
numeric.h add #include guard hack 2020-04-13 16:06:00 +09:00
object.h add #include guard hack 2020-04-13 16:06:00 +09:00
parse.h add #include guard hack 2020-04-13 16:06:00 +09:00
proc.h add #include guard hack 2020-04-13 16:06:00 +09:00
process.h add #include guard hack 2020-04-13 16:06:00 +09:00
random.h add #include guard hack 2020-04-13 16:06:00 +09:00
range.h add #include guard hack 2020-04-13 16:06:00 +09:00
rational.h add #include guard hack 2020-04-13 16:06:00 +09:00
re.h add #include guard hack 2020-04-13 16:06:00 +09:00
sanitizers.h add #include guard hack 2020-04-13 16:06:00 +09:00
serial.h add #include guard hack 2020-04-13 16:06:00 +09:00
signal.h add #include guard hack 2020-04-13 16:06:00 +09:00
static_assert.h add #include guard hack 2020-04-13 16:06:00 +09:00
string.h add #include guard hack 2020-04-13 16:06:00 +09:00
struct.h add #include guard hack 2020-04-13 16:06:00 +09:00
symbol.h add #include guard hack 2020-04-13 16:06:00 +09:00
thread.h add #include guard hack 2020-04-13 16:06:00 +09:00
time.h add #include guard hack 2020-04-13 16:06:00 +09:00
transcode.h add #include guard hack 2020-04-13 16:06:00 +09:00
util.h add #include guard hack 2020-04-13 16:06:00 +09:00
variable.h add #include guard hack 2020-04-13 16:06:00 +09:00
vm.h add #include guard hack 2020-04-13 16:06:00 +09:00
warnings.h add #include guard hack 2020-04-13 16:06:00 +09:00