numeric.h File Reference

• Numeric, Integer, Float class

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#include "common.h"

Include dependency graph for numeric.h:

Go to the source code of this file.

Macros
#define	TYPED_POSFIXABLE(f, t)
	Numeric class and it's sub-classes.
#define	TYPED_NEGFIXABLE(f, t)
#define	TYPED_FIXABLE(f, t)
#define	POSFIXABLE(f)
#define	NEGFIXABLE(f)
#define	FIXABLE(f)
#define	FIXABLE_FLOAT(f)
#define	mrb_num_plus(mrb, x, y)
#define	mrb_num_minus(mrb, x, y)
#define	mrb_fixnum_to_str(mrb, x, base)
#define	__has_builtin(x)
#define	MRB_INT_OVERFLOW_MASK   ((mrb_uint)1 << (MRB_INT_BIT - 1))
#define	MRB_FLT_RADIX   FLT_RADIX
#define	MRB_FLT_MANT_DIG   DBL_MANT_DIG
#define	MRB_FLT_EPSILON   DBL_EPSILON
#define	MRB_FLT_DIG   DBL_DIG
#define	MRB_FLT_MIN_EXP   DBL_MIN_EXP
#define	MRB_FLT_MIN   DBL_MIN
#define	MRB_FLT_MIN_10_EXP   DBL_MIN_10_EXP
#define	MRB_FLT_MAX_EXP   DBL_MAX_EXP
#define	MRB_FLT_MAX   DBL_MAX
#define	MRB_FLT_MAX_10_EXP   DBL_MAX_10_EXP

Functions
mrb_value	mrb_num_add (mrb_state *mrb, mrb_value x, mrb_value y)
mrb_value	mrb_num_sub (mrb_state *mrb, mrb_value x, mrb_value y)
mrb_value	mrb_num_mul (mrb_state *mrb, mrb_value x, mrb_value y)
mrb_value	mrb_integer_to_str (mrb_state *mrb, mrb_value x, mrb_int base)
	Converts an mrb_value representing an integer to a new mrb_value string.
char *	mrb_int_to_cstr (char *buf, size_t len, mrb_int n, mrb_int base)
	Converts an mrb_int to a C-style string.
static mrb_bool	mrb_int_add_overflow (mrb_int a, mrb_int b, mrb_int *c)
static mrb_bool	mrb_int_sub_overflow (mrb_int a, mrb_int b, mrb_int *c)
static mrb_bool	mrb_int_mul_overflow (mrb_int a, mrb_int b, mrb_int *c)
mrb_value	mrb_float_to_integer (mrb_state *mrb, mrb_value val)
	Converts an mrb_value float to an mrb_value integer.
mrb_float	mrb_div_float (mrb_float x, mrb_float y)
mrb_value	mrb_float_to_str (mrb_state *mrb, mrb_value x, const char *fmt)
	Converts an mrb_value float to a new mrb_value string.
int	mrb_format_float (mrb_float f, char *buf, size_t buf_size, char fmt, int prec, char sign)

Detailed Description

• Numeric, Integer, Float class

See Copyright Notice in mruby.h

Macro Definition Documentation

__has_builtin

#define __has_builtin

(

x

)

Value:

0

FIXABLE

#define FIXABLE

(

f

)

Value:

TYPED_FIXABLE(f,mrb_int)

FIXABLE_FLOAT

#define FIXABLE_FLOAT

(

f

)

Value:

TYPED_FIXABLE(f,mrb_float)

mrb_fixnum_to_str

#define mrb_fixnum_to_str	(		mrb,
			x,
			base )

Value:

mrb_integer_to_str(mrb, x, base)

mrb_num_minus

#define mrb_num_minus	(		mrb,
			x,
			y )

Value:

mrb_num_sub(mrb, x, y)

mrb_num_plus

#define mrb_num_plus	(		mrb,
			x,
			y )

Value:

mrb_num_add(mrb, x, y)

NEGFIXABLE

#define NEGFIXABLE

(

f

)

Value:

TYPED_NEGFIXABLE(f,mrb_int)

POSFIXABLE

#define POSFIXABLE

(

f

)

Value:

TYPED_POSFIXABLE(f,mrb_int)

TYPED_FIXABLE

#define TYPED_FIXABLE	(		f,
			t )

Value:

(TYPED_POSFIXABLE(f,t) && TYPED_NEGFIXABLE(f,t))

TYPED_NEGFIXABLE

#define TYPED_NEGFIXABLE	(		f,
			t )

Value:

((f) >= (t)MRB_FIXNUM_MIN)

TYPED_POSFIXABLE

#define TYPED_POSFIXABLE	(		f,
			t )

Value:

((f) <= (t)MRB_FIXNUM_MAX)

Numeric class and it's sub-classes.

Integer and Float

Function Documentation

mrb_float_to_integer()

mrb_value mrb_float_to_integer ( mrb_state * mrb, mrb_value x )

extern

Converts an mrb_value float to an mrb_value integer.

Parameters

mrb	The mruby state.
x	The float mrb_value to convert.

Returns

An mrb_value integer if the conversion is successful. @raise E_TYPE_ERROR if the input is not a float. @raise E_RANGE_ERROR if the float is Infinity or NaN.

mrb_float_to_str()

mrb_value mrb_float_to_str	(	mrb_state *	mrb,
		mrb_value	flo,
		const char *	fmt )

Converts an mrb_value float to a new mrb_value string.

It handles formatting to ensure the string representation includes a decimal point and fractional part (e.g., ".0" is appended if not present).

Parameters

mrb	The mruby state.
flo	The float mrb_value to convert.
fmt	This argument is noted as no longer used and can be NULL. The function uses a default format.

Returns

A new mrb_value string representing the float.

mrb_int_to_cstr()

char * mrb_int_to_cstr ( char * buf, size_t len, mrb_int n, mrb_int base )

extern

Converts an mrb_int to a C-style string.

Parameters

buf	The buffer to write the string to.
len	The size of the buffer.
n	The integer to convert.
base	The radix for conversion (2-36).

Returns

A pointer to the beginning of the string in the buffer, or NULL if an error occurs (e.g., invalid base, buffer too small).

mrb_integer_to_str()

mrb_value mrb_integer_to_str ( mrb_state * mrb, mrb_value x, mrb_int base )

extern

Converts an mrb_value representing an integer to a new mrb_value string.

Parameters

mrb	The mruby state.
x	The integer mrb_value to convert.
base	The radix for conversion (2-36).

Returns

A new mrb_value string representing the integer, or raises an E_ARGUMENT_ERROR if the base is invalid.