Consecutive `_` is not allowed as a numeric expression:
1_2__3 #=> SyntaxError
Float("1_2__3") #=> ArgumentError
Integer("1_2__3") #=> ArgumentError
"1_2__3".to_i #=> 12
But `String#to_f` accept it, so I fixed the issue.
Before this patch:
"1_2__3".to_f #=> 123
After this patch:
"1_2__3".to_f #=> 12
If ":" is after "|" and there is no "?" or "*", the keyword argument
could not be obtained and it was not initialized with `undef`.
For example: "|oo:"
* The allocated memory is guaranteed to be aligned for any data type (it was
not guaranteed when string type is embed).
* Make allocation size exactly specified size (does not allocate space for a
null byte).
Silence the following warnings:
```
/mruby/mrbgems/mruby-time/src/time.c:871:15: warning: result of comparison of constant 9223372036854775807 with expression of type 'time_t' (aka 'long') is always false [-Wtautological-constant-out-of-range-compare]
if (tm->sec > MRB_INT_MAX || tm->sec < MRB_INT_MIN) {
~~~~~~~ ^ ~~~~~~~~~~~
/mruby/mrbgems/mruby-time/src/time.c:871:40: warning: result of comparison of constant -9223372036854775808 with expression of type 'time_t' (aka 'long') is always false [-Wtautological-constant-out-of-range-compare]
if (tm->sec > MRB_INT_MAX || tm->sec < MRB_INT_MIN) {
~~~~~~~ ^ ~~~~~~~~~~~
/mruby/mrbgems/mruby-time/src/time.c:887:16: warning: result of comparison of constant 9223372036854775807 with expression of type 'time_t' (aka 'long') is always false [-Wtautological-constant-out-of-range-compare]
if (tm->usec > MRB_INT_MAX || tm->usec < MRB_INT_MIN) {
~~~~~~~~ ^ ~~~~~~~~~~~
/mruby/mrbgems/mruby-time/src/time.c:887:42: warning: result of comparison of constant -9223372036854775808 with expression of type 'time_t' (aka 'long') is always false [-Wtautological-constant-out-of-range-compare]
if (tm->usec > MRB_INT_MAX || tm->usec < MRB_INT_MIN) {
~~~~~~~~ ^ ~~~~~~~~~~~
```
Silence the following warning:
```
/mruby/mrbgems/mruby-time/src/time.c:258:60: warning: result of comparison of constant -9223372036854775808 with expression of type 'mrb_int' (aka 'int') is always false [-Wtautological-constant-out-of-range-compare]
if ((mrb_time_int)i > MRB_TIME_MAX || MRB_TIME_MIN > i) {
~~~~~~~~~~~~ ^ ~
```
#### Before this patch:
```
$ bin/mruby -e 'p ARGV' a b
["bin/mruby", "-e", "p ARGV", "a", "b"]
```
#### After this patch:
```
$ bin/mruby -e 'p ARGV' a b
["a", "b"]
```
Previously, `mrb_int` was used as the type that represents the buffer size
on memory, but the sizes of `RString` and `RArray` exceed 6 words when
`MRB_INT64` is enabled on 32-bit CPU.
I don't think it is necessary to be able to represent the buffer size on
memory that exceeds the virtual address space. Therefore, for this purpose,
introduce `mrb_ssize` which doesn't exceed the sizes of `mrb_int` and
pointer.
I think all `mrb_int` used for this purpose should be changed to
`mrb_ssize`, but currently only the members of the structures (`RString`,
`mrb_shared_string`, `RArray` and `mrb_shared_array`) are changed.
Yukihiro "Matz" Matsumoto