Ruby 3.0.5p211 (2022-11-24 revision ba5cf0f7c52d4d35cc6a173c89eda98ceffa2dcf)
Macros | Functions
double.h File Reference

Arithmetic conversion between C's double and Ruby's. More...

#include "ruby/internal/attr/pure.h"
#include "ruby/internal/dllexport.h"
#include "ruby/internal/value.h"

Go to the source code of this file.

Macros

#define NUM2DBL   rb_num2dbl
 
#define RFLOAT_VALUE   rb_float_value
 
#define DBL2NUM   rb_float_new
 

Functions

double rb_num2dbl (VALUE)
 Converts a Numeric object to double. More...
 
double rb_float_value (VALUE)
 
VALUE rb_float_new (double)
 
VALUE rb_float_new_in_heap (double)
 

Detailed Description

Arithmetic conversion between C's double and Ruby's.

Author
Ruby developers ruby-.nosp@m.core.nosp@m.@ruby.nosp@m.-lan.nosp@m.g.org
Warning
Symbols prefixed with either RBIMPL or rbimpl are implementation details. Don't take them as canon. They could rapidly appear then vanish. The name (path) of this header file is also an implementation detail. Do not expect it to persist at the place it is now. Developers are free to move it anywhere anytime at will.
Note
To ruby-core: remember that this header can be possibly recursively included from extension libraries written in C++. Do not expect for instance __VA_ARGS__ is always available. We assume C99 for ruby itself but we don't assume languages of extension libraries. They could be written in C++98.

Definition in file double.h.

Macro Definition Documentation

◆ DBL2NUM

#define DBL2NUM   rb_float_new

Definition at line 29 of file double.h.

◆ NUM2DBL

#define NUM2DBL   rb_num2dbl

Definition at line 27 of file double.h.

◆ RFLOAT_VALUE

#define RFLOAT_VALUE   rb_float_value

Definition at line 28 of file double.h.

Function Documentation

◆ rb_float_new()

VALUE rb_float_new ( double  d)

Definition at line 5732 of file numeric.c.

◆ rb_float_new_in_heap()

VALUE rb_float_new_in_heap ( double  d)

Definition at line 922 of file numeric.c.

References FL_WB_PROTECTED, NEWOBJ_OF, OBJ_FREEZE, rb_cFloat, RGENGC_WB_PROTECTED_FLOAT, and T_FLOAT.

◆ rb_float_value()

double rb_float_value ( VALUE  v)

Definition at line 5725 of file numeric.c.