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/* ************************************************************************ */
/* */
/* Neko Standard Library */
/* Copyright (c)2005 Motion-Twin */
/* */
/* This library is free software; you can redistribute it and/or */
/* modify it under the terms of the GNU Lesser General Public */
/* License as published by the Free Software Foundation; either */
/* version 2.1 of the License, or (at your option) any later version. */
/* */
/* This library is distributed in the hope that it will be useful, */
/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU */
/* Lesser General Public License or the LICENSE file for more details. */
/* */
/* ************************************************************************ */
#include <neko.h>
/**
<doc>
<h1>Int32</h1>
<p>
Int32 is an abstract type that can be used to store the full 32 bits of an
integer. The type ['int32] means that the value is a real int32. The type
[#int32] means [(int | 'int32)] and accept then the both kind of integers.
</p>
</doc>
**/
/**
int32_new : (#int32 | float) -> 'int32
<doc>Allocate an int32 from any integer or a float</doc>
**/
static value int32_new( value v ) {
if( val_is_number(v) )
return alloc_int32((int)val_number(v));
val_check_kind(v,k_int32);
return alloc_int32(val_int32(v));
}
/**
int32_to_int : #int32 -> int
<doc>Return the int value if it can be represented using 31 bits. Error either</doc>
**/
static value int32_to_int( value v ) {
int i;
val_check(v,int32);
i = val_int32(v);
if( need_32_bits(i) )
neko_error();
return alloc_int(i);
}
/**
int32_to_float : #int32 -> float
<doc>Return the float value of the integer.</doc>
**/
static value int32_to_float( value v ) {
val_check(v,int32);
return alloc_float(val_int32(v));
}
/**
int32_compare : #int32 -> #int32 -> int
<doc>Compare two integers</doc>
**/
static value int32_compare( value v1, value v2 ) {
int i1, i2;
val_check(v1,int32);
val_check(v2,int32);
i1 = val_int32(v1);
i2 = val_int32(v2);
if( i1 == i2 )
return alloc_int(0);
else if( i1 > i2 )
return alloc_int(1);
else
return alloc_int(-1);
}
#define INT32_OP(op_name,op) \
static value int32_##op_name( value v1, value v2 ) { \
int r; \
val_check(v1,int32); \
val_check(v2,int32); \
r = val_int32(v1) op val_int32(v2); \
return alloc_best_int(r); \
} \
DEFINE_PRIM(int32_##op_name,2)
#define INT32_UNOP(op_name,op) \
static value int32_##op_name( value v ) { \
int r; \
val_check(v,int32); \
r = op val_int32(v); \
return alloc_best_int(r); \
} \
DEFINE_PRIM(int32_##op_name,1)
#define INT32_OP_ZERO(op_name,op) \
static value int32_##op_name( value v1, value v2 ) { \
int d; \
int r; \
val_check(v1,int32); \
val_check(v2,int32); \
d = val_int32(v2); \
if( d == 0 ) \
neko_error(); \
r = val_int32(v1) op d; \
return alloc_best_int(r); \
} \
DEFINE_PRIM(int32_##op_name,2)
/**
int32_ushr : #int32 -> #int32 -> #int32
<doc>Perform unsigned right bits-shifting</doc>
**/
static value int32_ushr( value v1, value v2 ) {
int r;
val_check(v1,int32);
val_check(v2,int32);
r = ((unsigned int)val_int32(v1)) >> val_int32(v2);
return alloc_best_int(r);
}
/**
int32_add : #int32 -> #int32 -> #int32
<doc>Add two integers</doc>
**/
INT32_OP(add,+);
/**
int32_sub : #int32 -> #int32 -> #int32
<doc>Subtract two integers</doc>
**/
INT32_OP(sub,-);
/**
int32_mul : #int32 -> #int32 -> #int32
<doc>Multiply two integers</doc>
**/
INT32_OP(mul,*);
/**
int32_div : #int32 -> #int32 -> #int32
<doc>Divide two integers. Error on division by 0</doc>
**/
INT32_OP_ZERO(div,/);
/**
int32_shl : #int32 -> #int32 -> #int32
<doc>Perform left bit-shifting</doc>
**/
INT32_OP(shl,<<);
/**
int32_shr : #int32 -> #int32 -> #int32
<doc>Perform right bit-shifting</doc>
**/
INT32_OP(shr,>>);
/**
int32_mod : #int32 -> #int32 -> #int32
<doc>Return the modulo of one integer by the other. Error on modulo by 0</doc>
**/
INT32_OP_ZERO(mod,%);
/**
int32_neg : #int32 -> #int32
<doc>Return the negative value of an integer</doc>
**/
INT32_UNOP(neg,-);
/**
int32_complement : #int32 -> #int32
<doc>Return the one-complement bitwised integer</doc>
**/
INT32_UNOP(complement,~);
/**
int32_or : #int32 -> #int32 -> #int32
<doc>Return the bitwise or of two integers</doc>
**/
INT32_OP(or,|);
/**
int32_and : #int32 -> #int32 -> #int32
<doc>Return the bitwise and of two integers</doc>
**/
INT32_OP(and,&);
/**
int32_xor : #int32 -> #int32 -> #int32
<doc>Return the bitwise xor of two integers</doc>
**/
INT32_OP(xor,^);
/**
int32_address : any -> #int32
<doc>
Return the address of the value.
The address should not be considered constant. It is not unique
either unless you are sure you are running on a 32-bit platform.
</doc>
**/
static value int32_address( value v ) {
return alloc_best_int((int_val)v);
}
DEFINE_PRIM(int32_new,1);
DEFINE_PRIM(int32_to_int,1);
DEFINE_PRIM(int32_to_float,1);
DEFINE_PRIM(int32_compare,2);
DEFINE_PRIM(int32_ushr,2);
DEFINE_PRIM(int32_address,1);
/* ************************************************************************ */
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