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parse.y: calculate powers of ten

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* parse.y (parser_yylex): calculate denominator directly as powers of
  ten, not parsing string.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42334 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2013-08-02 14:48:55 +00:00
parent 0eab2b464e
commit 7c9a3d19fc
4 changed files with 14 additions and 4 deletions
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5
ChangeLog
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@ -1,4 +1,7 @@
Fri Aug 2 23:14:54 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
Fri Aug 2 23:48:36 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
* parse.y (parser_yylex): calculate denominator directly as powers of
ten, not parsing string.
* parse.y (parser_number_literal_suffix): return bit set of found
suffixes.

3
internal.h
View file

@ -503,6 +503,9 @@ VALUE rb_big_sq_fast(VALUE x);
/* io.c */
void rb_maygvl_fd_fix_cloexec(int fd);
/* numeric.c */
VALUE rb_int_positive_pow(long x, unsigned long y);
/* process.c */
int rb_exec_async_signal_safe(const struct rb_execarg *e, char *errmsg, size_t errmsg_buflen);
rb_pid_t rb_fork_async_signal_safe(int *status, int (*chfunc)(void*, char *, size_t), void *charg, VALUE fds, char *errmsg, size_t errmsg_buflen);

6
numeric.c
View file

@ -2986,6 +2986,12 @@ int_pow(long x, unsigned long y)
return LONG2NUM(z);
}
VALUE
rb_int_positive_pow(long x, unsigned long y)
{
return int_pow(x, y);
}
/*
* call-seq:
* fix ** numeric -> numeric_result

4
parse.y
View file

@ -7649,9 +7649,7 @@ parser_yylex(struct parser_params *parser)
type = tRATIONAL;
memmove(point, point+1, fraclen+1);
v = rb_cstr_to_inum(tok(), 10, FALSE);
*point = '1';
memset(point+1, '0', fraclen);
v = rb_rational_new(v, rb_cstr_to_inum(point, 10, FALSE));
v = rb_rational_new(v, rb_int_positive_pow(10, fraclen));
}
else {
double d = strtod(tok(), 0);