зеркало из https://github.com/github/ruby.git
ruby/util.h: DECIMAL_SIZE_OF_BITS
* include/ruby/util.h (DECIMAL_SIZE_OF_BITS): a preprocessor constant macro to approximate decimal representation size of n-bits integer. * iseq.c (register_label): use DECIMAL_SIZE_OF_BITS for better approximation. * ext/bigdecimal/bigdecimal.c (BigMath_s_log): ditto. * common.mk (iseq.o), ext/bigdecimal/depend (bigdecimal.o): add dependency to ruby/util.h for DECIMAL_SIZE_OF_BITS. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44562 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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14
ChangeLog
14
ChangeLog
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@ -1,3 +1,17 @@
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Sun Jan 12 09:21:35 2014 Nobuyoshi Nakada <nobu@ruby-lang.org>
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* include/ruby/util.h (DECIMAL_SIZE_OF_BITS): a preprocessor
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constant macro to approximate decimal representation size of n-bits
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integer.
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* iseq.c (register_label): use DECIMAL_SIZE_OF_BITS for better
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approximation.
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* ext/bigdecimal/bigdecimal.c (BigMath_s_log): ditto.
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* common.mk (iseq.o), ext/bigdecimal/depend (bigdecimal.o): add
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dependency to ruby/util.h for DECIMAL_SIZE_OF_BITS.
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Fri Jan 10 16:27:20 2014 Yuki Yugui Sonoda <yugui@google.com>
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* vm_exec.c (cfp): Avoid generating invalid binary for
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@ -786,7 +786,9 @@ compile.$(OBJEXT): {$(VPATH)}compile.c {$(VPATH)}iseq.h \
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{$(VPATH)}internal.h {$(VPATH)}vm_opts.h
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iseq.$(OBJEXT): {$(VPATH)}iseq.c {$(VPATH)}gc.h {$(VPATH)}iseq.h \
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$(RUBY_H_INCLUDES) $(VM_CORE_H_INCLUDES) {$(VPATH)}insns.inc \
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{$(VPATH)}insns_info.inc {$(VPATH)}node_name.inc {$(VPATH)}internal.h {$(VPATH)}vm_opts.h {$(VPATH)}ruby_atomic.h {$(VPATH)}eval_intern.h
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{$(VPATH)}insns_info.inc {$(VPATH)}node_name.inc {$(VPATH)}internal.h \
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{$(VPATH)}vm_opts.h {$(VPATH)}ruby_atomic.h {$(VPATH)}eval_intern.h \
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{$(VPATH)}util.h
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vm.$(OBJEXT): {$(VPATH)}vm.c {$(VPATH)}gc.h {$(VPATH)}iseq.h \
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{$(VPATH)}eval_intern.h $(RUBY_H_INCLUDES) $(ENCODING_H_INCLUDES) \
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$(VM_CORE_H_INCLUDES) {$(VPATH)}vm_method.c {$(VPATH)}vm_eval.c \
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@ -18,6 +18,7 @@
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# define BIGDECIMAL_ENABLE_VPRINT 1
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#endif
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#include "bigdecimal.h"
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#include "ruby/util.h"
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#ifndef BIGDECIMAL_DEBUG
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# define NDEBUG
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@ -2919,7 +2920,7 @@ get_vp_value:
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RB_GC_GUARD(vn) = SSIZET2NUM(n);
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expo = VpExponent10(vx);
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if (expo < 0 || expo >= 3) {
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char buf[SIZEOF_VALUE * CHAR_BIT / 3 + 4];
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char buf[DECIMAL_SIZE_OF_BITS(SIZEOF_VALUE * CHAR_BIT) + 4];
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snprintf(buf, sizeof(buf), "1E%"PRIdVALUE, -expo);
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x = BigDecimal_mult2(x, ToValue(VpCreateRbObject(1, buf)), vn);
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}
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@ -1 +1 @@
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bigdecimal.o: bigdecimal.c bigdecimal.h $(HDRS) $(ruby_headers)
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bigdecimal.o: bigdecimal.c bigdecimal.h $(HDRS) $(ruby_headers) $(hdrdir)/ruby/util.h
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@ -47,6 +47,9 @@ extern "C" {
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RUBY_SYMBOL_EXPORT_BEGIN
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#define DECIMAL_SIZE_OF_BITS(n) (((n) * 3010 + 9998) / 9999)
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/* an approximation of ceil(n * log10(2)), upto 65536 at least */
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#define scan_oct(s,l,e) ((int)ruby_scan_oct((s),(l),(e)))
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unsigned long ruby_scan_oct(const char *, size_t, size_t *);
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#define scan_hex(s,l,e) ((int)ruby_scan_hex((s),(l),(e)))
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3
iseq.c
3
iseq.c
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@ -10,6 +10,7 @@
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**********************************************************************/
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#include "ruby/ruby.h"
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#include "ruby/util.h"
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#include "internal.h"
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#include "eval_intern.h"
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@ -1612,7 +1613,7 @@ static VALUE
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register_label(struct st_table *table, unsigned long idx)
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{
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VALUE sym;
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char buff[8 + (sizeof(idx) * CHAR_BIT * 32 / 100)];
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char buff[7 + DECIMAL_SIZE_OF_BITS(sizeof(idx) * CHAR_BIT)];
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snprintf(buff, sizeof(buff), "label_%lu", idx);
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sym = ID2SYM(rb_intern(buff));
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