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Diffstat (limited to 'ocaml-binary-annot/byterun/ints.c')
| -rw-r--r-- | ocaml-binary-annot/byterun/ints.c | 774 |
1 files changed, 774 insertions, 0 deletions
diff --git a/ocaml-binary-annot/byterun/ints.c b/ocaml-binary-annot/byterun/ints.c new file mode 100644 index 0000000000..9fdaa1802b --- /dev/null +++ b/ocaml-binary-annot/byterun/ints.c @@ -0,0 +1,774 @@ +/***********************************************************************/ +/* */ +/* Objective Caml */ +/* */ +/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */ +/* */ +/* Copyright 1996 Institut National de Recherche en Informatique et */ +/* en Automatique. All rights reserved. This file is distributed */ +/* under the terms of the GNU Library General Public License, with */ +/* the special exception on linking described in file ../LICENSE. */ +/* */ +/***********************************************************************/ + +/* $Id$ */ + +#include <stdio.h> +#include <string.h> +#include "alloc.h" +#include "custom.h" +#include "fail.h" +#include "intext.h" +#include "memory.h" +#include "misc.h" +#include "mlvalues.h" + +static char * parse_sign_and_base(char * p, + /*out*/ int * base, + /*out*/ int * sign) +{ + *sign = 1; + if (*p == '-') { + *sign = -1; + p++; + } + *base = 10; + if (*p == '0') { + switch (p[1]) { + case 'x': case 'X': + *base = 16; p += 2; break; + case 'o': case 'O': + *base = 8; p += 2; break; + case 'b': case 'B': + *base = 2; p += 2; break; + } + } + return p; +} + +static int parse_digit(char c) +{ + if (c >= '0' && c <= '9') + return c - '0'; + else if (c >= 'A' && c <= 'F') + return c - 'A' + 10; + else if (c >= 'a' && c <= 'f') + return c - 'a' + 10; + else + return -1; +} + +static intnat parse_intnat(value s, int nbits) +{ + char * p; + uintnat res, threshold; + int sign, base, d; + + p = parse_sign_and_base(String_val(s), &base, &sign); + threshold = ((uintnat) -1) / base; + d = parse_digit(*p); + if (d < 0 || d >= base) caml_failwith("int_of_string"); + for (p++, res = d; /*nothing*/; p++) { + char c = *p; + if (c == '_') continue; + d = parse_digit(c); + if (d < 0 || d >= base) break; + /* Detect overflow in multiplication base * res */ + if (res > threshold) caml_failwith("int_of_string"); + res = base * res + d; + /* Detect overflow in addition (base * res) + d */ + if (res < (uintnat) d) caml_failwith("int_of_string"); + } + if (p != String_val(s) + caml_string_length(s)){ + caml_failwith("int_of_string"); + } + if (base == 10) { + /* Signed representation expected, allow -2^(nbits-1) to 2^(nbits-1) - 1 */ + if (sign >= 0) { + if (res >= (uintnat)1 << (nbits - 1)) caml_failwith("int_of_string"); + } else { + if (res > (uintnat)1 << (nbits - 1)) caml_failwith("int_of_string"); + } + } else { + /* Unsigned representation expected, allow 0 to 2^nbits - 1 + and tolerate -(2^nbits - 1) to 0 */ + if (nbits < sizeof(uintnat) * 8 && res >= (uintnat)1 << nbits) + caml_failwith("int_of_string"); + } + return sign < 0 ? -((intnat) res) : (intnat) res; +} + +#ifdef NONSTANDARD_DIV_MOD +intnat caml_safe_div(intnat p, intnat q) +{ + uintnat ap = p >= 0 ? p : -p; + uintnat aq = q >= 0 ? q : -q; + uintnat ar = ap / aq; + return (p ^ q) >= 0 ? ar : -ar; +} + +intnat caml_safe_mod(intnat p, intnat q) +{ + uintnat ap = p >= 0 ? p : -p; + uintnat aq = q >= 0 ? q : -q; + uintnat ar = ap % aq; + return p >= 0 ? ar : -ar; +} +#endif + +/* Tagged integers */ + +CAMLprim value caml_int_compare(value v1, value v2) +{ + int res = (v1 > v2) - (v1 < v2); + return Val_int(res); +} + +CAMLprim value caml_int_of_string(value s) +{ + return Val_long(parse_intnat(s, 8 * sizeof(value) - 1)); +} + +#define FORMAT_BUFFER_SIZE 32 + +static char * parse_format(value fmt, + char * suffix, + char format_string[], + char default_format_buffer[], + char *conv) +{ + int prec; + char * p; + char lastletter; + mlsize_t len, len_suffix; + + /* Copy Caml format fmt to format_string, + adding the suffix before the last letter of the format */ + len = caml_string_length(fmt); + len_suffix = strlen(suffix); + if (len + len_suffix + 1 >= FORMAT_BUFFER_SIZE) + caml_invalid_argument("format_int: format too long"); + memmove(format_string, String_val(fmt), len); + p = format_string + len - 1; + lastletter = *p; + /* Compress two-letter formats, ignoring the [lnL] annotation */ + if (p[-1] == 'l' || p[-1] == 'n' || p[-1] == 'L') p--; + memmove(p, suffix, len_suffix); p += len_suffix; + *p++ = lastletter; + *p = 0; + /* Determine space needed for result and allocate it dynamically if needed */ + prec = 22 + 5; /* 22 digits for 64-bit number in octal + 5 extra */ + for (p = String_val(fmt); *p != 0; p++) { + if (*p >= '0' && *p <= '9') { + prec = atoi(p) + 5; + break; + } + } + *conv = lastletter; + if (prec < FORMAT_BUFFER_SIZE) + return default_format_buffer; + else + return caml_stat_alloc(prec + 1); +} + +CAMLprim value caml_format_int(value fmt, value arg) +{ + char format_string[FORMAT_BUFFER_SIZE]; + char default_format_buffer[FORMAT_BUFFER_SIZE]; + char * buffer; + char conv; + value res; + + buffer = parse_format(fmt, ARCH_INTNAT_PRINTF_FORMAT, + format_string, default_format_buffer, &conv); + switch (conv) { + case 'u': case 'x': case 'X': case 'o': + sprintf(buffer, format_string, Unsigned_long_val(arg)); + break; + default: + sprintf(buffer, format_string, Long_val(arg)); + break; + } + res = caml_copy_string(buffer); + if (buffer != default_format_buffer) caml_stat_free(buffer); + return res; +} + +/* 32-bit integers */ + +static int int32_cmp(value v1, value v2) +{ + int32 i1 = Int32_val(v1); + int32 i2 = Int32_val(v2); + return (i1 > i2) - (i1 < i2); +} + +static intnat int32_hash(value v) +{ + return Int32_val(v); +} + +static void int32_serialize(value v, uintnat * wsize_32, + uintnat * wsize_64) +{ + caml_serialize_int_4(Int32_val(v)); + *wsize_32 = *wsize_64 = 4; +} + +static uintnat int32_deserialize(void * dst) +{ + *((int32 *) dst) = caml_deserialize_sint_4(); + return 4; +} + +CAMLexport struct custom_operations caml_int32_ops = { + "_i", + custom_finalize_default, + int32_cmp, + int32_hash, + int32_serialize, + int32_deserialize +}; + +CAMLexport value caml_copy_int32(int32 i) +{ + value res = caml_alloc_custom(&caml_int32_ops, 4, 0, 1); + Int32_val(res) = i; + return res; +} + +CAMLprim value caml_int32_neg(value v) +{ return caml_copy_int32(- Int32_val(v)); } + +CAMLprim value caml_int32_add(value v1, value v2) +{ return caml_copy_int32(Int32_val(v1) + Int32_val(v2)); } + +CAMLprim value caml_int32_sub(value v1, value v2) +{ return caml_copy_int32(Int32_val(v1) - Int32_val(v2)); } + +CAMLprim value caml_int32_mul(value v1, value v2) +{ return caml_copy_int32(Int32_val(v1) * Int32_val(v2)); } + +CAMLprim value caml_int32_div(value v1, value v2) +{ + int32 dividend = Int32_val(v1); + int32 divisor = Int32_val(v2); + if (divisor == 0) caml_raise_zero_divide(); + /* PR#4740: on some processors, division crashes on overflow. + Implement the same behavior as for type "int". */ + if (dividend == (1<<31) && divisor == -1) return v1; +#ifdef NONSTANDARD_DIV_MOD + return caml_copy_int32(caml_safe_div(dividend, divisor)); +#else + return caml_copy_int32(dividend / divisor); +#endif +} + +CAMLprim value caml_int32_mod(value v1, value v2) +{ + int32 dividend = Int32_val(v1); + int32 divisor = Int32_val(v2); + if (divisor == 0) caml_raise_zero_divide(); + /* PR#4740: on some processors, modulus crashes if division overflows. + Implement the same behavior as for type "int". */ + if (dividend == (1<<31) && divisor == -1) return caml_copy_int32(0); +#ifdef NONSTANDARD_DIV_MOD + return caml_copy_int32(caml_safe_mod(dividend, divisor)); +#else + return caml_copy_int32(dividend % divisor); +#endif +} + +CAMLprim value caml_int32_and(value v1, value v2) +{ return caml_copy_int32(Int32_val(v1) & Int32_val(v2)); } + +CAMLprim value caml_int32_or(value v1, value v2) +{ return caml_copy_int32(Int32_val(v1) | Int32_val(v2)); } + +CAMLprim value caml_int32_xor(value v1, value v2) +{ return caml_copy_int32(Int32_val(v1) ^ Int32_val(v2)); } + +CAMLprim value caml_int32_shift_left(value v1, value v2) +{ return caml_copy_int32(Int32_val(v1) << Int_val(v2)); } + +CAMLprim value caml_int32_shift_right(value v1, value v2) +{ return caml_copy_int32(Int32_val(v1) >> Int_val(v2)); } + +CAMLprim value caml_int32_shift_right_unsigned(value v1, value v2) +{ return caml_copy_int32((uint32)Int32_val(v1) >> Int_val(v2)); } + +CAMLprim value caml_int32_of_int(value v) +{ return caml_copy_int32(Long_val(v)); } + +CAMLprim value caml_int32_to_int(value v) +{ return Val_long(Int32_val(v)); } + +CAMLprim value caml_int32_of_float(value v) +{ return caml_copy_int32((int32)(Double_val(v))); } + +CAMLprim value caml_int32_to_float(value v) +{ return caml_copy_double((double)(Int32_val(v))); } + +CAMLprim value caml_int32_compare(value v1, value v2) +{ + int32 i1 = Int32_val(v1); + int32 i2 = Int32_val(v2); + int res = (i1 > i2) - (i1 < i2); + return Val_int(res); +} + +CAMLprim value caml_int32_format(value fmt, value arg) +{ + char format_string[FORMAT_BUFFER_SIZE]; + char default_format_buffer[FORMAT_BUFFER_SIZE]; + char * buffer; + char conv; + value res; + + buffer = parse_format(fmt, ARCH_INT32_PRINTF_FORMAT, + format_string, default_format_buffer, &conv); + sprintf(buffer, format_string, Int32_val(arg)); + res = caml_copy_string(buffer); + if (buffer != default_format_buffer) caml_stat_free(buffer); + return res; +} + +CAMLprim value caml_int32_of_string(value s) +{ + return caml_copy_int32(parse_intnat(s, 32)); +} + +CAMLprim value caml_int32_bits_of_float(value vd) +{ + union { float d; int32 i; } u; + u.d = Double_val(vd); + return caml_copy_int32(u.i); +} + +CAMLprim value caml_int32_float_of_bits(value vi) +{ + union { float d; int32 i; } u; + u.i = Int32_val(vi); + return caml_copy_double(u.d); +} + +/* 64-bit integers */ + +#ifdef ARCH_INT64_TYPE +#include "int64_native.h" +#else +#include "int64_emul.h" +#endif + +#ifdef ARCH_ALIGN_INT64 + +CAMLexport int64 caml_Int64_val(value v) +{ + union { int32 i[2]; int64 j; } buffer; + buffer.i[0] = ((int32 *) Data_custom_val(v))[0]; + buffer.i[1] = ((int32 *) Data_custom_val(v))[1]; + return buffer.j; +} + +#endif + +static int int64_cmp(value v1, value v2) +{ + int64 i1 = Int64_val(v1); + int64 i2 = Int64_val(v2); + return I64_compare(i1, i2); +} + +static intnat int64_hash(value v) +{ + return I64_to_intnat(Int64_val(v)); +} + +static void int64_serialize(value v, uintnat * wsize_32, + uintnat * wsize_64) +{ + caml_serialize_int_8(Int64_val(v)); + *wsize_32 = *wsize_64 = 8; +} + +static uintnat int64_deserialize(void * dst) +{ +#ifndef ARCH_ALIGN_INT64 + *((int64 *) dst) = caml_deserialize_sint_8(); +#else + union { int32 i[2]; int64 j; } buffer; + buffer.j = caml_deserialize_sint_8(); + ((int32 *) dst)[0] = buffer.i[0]; + ((int32 *) dst)[1] = buffer.i[1]; +#endif + return 8; +} + +CAMLexport struct custom_operations caml_int64_ops = { + "_j", + custom_finalize_default, + int64_cmp, + int64_hash, + int64_serialize, + int64_deserialize +}; + +CAMLexport value caml_copy_int64(int64 i) +{ + value res = caml_alloc_custom(&caml_int64_ops, 8, 0, 1); +#ifndef ARCH_ALIGN_INT64 + Int64_val(res) = i; +#else + union { int32 i[2]; int64 j; } buffer; + buffer.j = i; + ((int32 *) Data_custom_val(res))[0] = buffer.i[0]; + ((int32 *) Data_custom_val(res))[1] = buffer.i[1]; +#endif + return res; +} + +CAMLprim value caml_int64_neg(value v) +{ return caml_copy_int64(I64_neg(Int64_val(v))); } + +CAMLprim value caml_int64_add(value v1, value v2) +{ return caml_copy_int64(I64_add(Int64_val(v1), Int64_val(v2))); } + +CAMLprim value caml_int64_sub(value v1, value v2) +{ return caml_copy_int64(I64_sub(Int64_val(v1), Int64_val(v2))); } + +CAMLprim value caml_int64_mul(value v1, value v2) +{ return caml_copy_int64(I64_mul(Int64_val(v1), Int64_val(v2))); } + +CAMLprim value caml_int64_div(value v1, value v2) +{ + int64 dividend = Int64_val(v1); + int64 divisor = Int64_val(v2); + if (I64_is_zero(divisor)) caml_raise_zero_divide(); + /* PR#4740: on some processors, division crashes on overflow. + Implement the same behavior as for type "int". */ + if (I64_is_min_int(dividend) && I64_is_minus_one(divisor)) return v1; + return caml_copy_int64(I64_div(Int64_val(v1), divisor)); +} + +CAMLprim value caml_int64_mod(value v1, value v2) +{ + int64 dividend = Int64_val(v1); + int64 divisor = Int64_val(v2); + if (I64_is_zero(divisor)) caml_raise_zero_divide(); + /* PR#4740: on some processors, division crashes on overflow. + Implement the same behavior as for type "int". */ + if (I64_is_min_int(dividend) && I64_is_minus_one(divisor)) { + int64 zero = I64_literal(0,0); + return caml_copy_int64(zero); + } + return caml_copy_int64(I64_mod(Int64_val(v1), divisor)); +} + +CAMLprim value caml_int64_and(value v1, value v2) +{ return caml_copy_int64(I64_and(Int64_val(v1), Int64_val(v2))); } + +CAMLprim value caml_int64_or(value v1, value v2) +{ return caml_copy_int64(I64_or(Int64_val(v1), Int64_val(v2))); } + +CAMLprim value caml_int64_xor(value v1, value v2) +{ return caml_copy_int64(I64_xor(Int64_val(v1), Int64_val(v2))); } + +CAMLprim value caml_int64_shift_left(value v1, value v2) +{ return caml_copy_int64(I64_lsl(Int64_val(v1), Int_val(v2))); } + +CAMLprim value caml_int64_shift_right(value v1, value v2) +{ return caml_copy_int64(I64_asr(Int64_val(v1), Int_val(v2))); } + +CAMLprim value caml_int64_shift_right_unsigned(value v1, value v2) +{ return caml_copy_int64(I64_lsr(Int64_val(v1), Int_val(v2))); } + +CAMLprim value caml_int64_of_int(value v) +{ return caml_copy_int64(I64_of_intnat(Long_val(v))); } + +CAMLprim value caml_int64_to_int(value v) +{ return Val_long(I64_to_intnat(Int64_val(v))); } + +CAMLprim value caml_int64_of_float(value v) +{ return caml_copy_int64(I64_of_double(Double_val(v))); } + +CAMLprim value caml_int64_to_float(value v) +{ + int64 i = Int64_val(v); + return caml_copy_double(I64_to_double(i)); +} + +CAMLprim value caml_int64_of_int32(value v) +{ return caml_copy_int64(I64_of_int32(Int32_val(v))); } + +CAMLprim value caml_int64_to_int32(value v) +{ return caml_copy_int32(I64_to_int32(Int64_val(v))); } + +CAMLprim value caml_int64_of_nativeint(value v) +{ return caml_copy_int64(I64_of_intnat(Nativeint_val(v))); } + +CAMLprim value caml_int64_to_nativeint(value v) +{ return caml_copy_nativeint(I64_to_intnat(Int64_val(v))); } + +CAMLprim value caml_int64_compare(value v1, value v2) +{ + int64 i1 = Int64_val(v1); + int64 i2 = Int64_val(v2); + return Val_int(I64_compare(i1, i2)); +} + +#ifdef ARCH_INT64_PRINTF_FORMAT +#define I64_format(buf,fmt,x) sprintf(buf,fmt,x) +#else +#include "int64_format.h" +#define ARCH_INT64_PRINTF_FORMAT "" +#endif + +CAMLprim value caml_int64_format(value fmt, value arg) +{ + char format_string[FORMAT_BUFFER_SIZE]; + char default_format_buffer[FORMAT_BUFFER_SIZE]; + char * buffer; + char conv; + value res; + + buffer = parse_format(fmt, ARCH_INT64_PRINTF_FORMAT, + format_string, default_format_buffer, &conv); + I64_format(buffer, format_string, Int64_val(arg)); + res = caml_copy_string(buffer); + if (buffer != default_format_buffer) caml_stat_free(buffer); + return res; +} + +CAMLprim value caml_int64_of_string(value s) +{ + char * p; + uint64 max_uint64 = I64_literal(0xFFFFFFFF, 0xFFFFFFFF); + uint64 max_int64_pos = I64_literal(0x7FFFFFFF, 0xFFFFFFFF); + uint64 max_int64_neg = I64_literal(0x80000000, 0x00000000); + uint64 res, threshold; + int sign, base, d; + + p = parse_sign_and_base(String_val(s), &base, &sign); + I64_udivmod(max_uint64, I64_of_int32(base), &threshold, &res); + d = parse_digit(*p); + if (d < 0 || d >= base) caml_failwith("int_of_string"); + res = I64_of_int32(d); + for (p++; /*nothing*/; p++) { + char c = *p; + if (c == '_') continue; + d = parse_digit(c); + if (d < 0 || d >= base) break; + /* Detect overflow in multiplication base * res */ + if (I64_ult(threshold, res)) caml_failwith("int_of_string"); + res = I64_add(I64_mul(I64_of_int32(base), res), I64_of_int32(d)); + /* Detect overflow in addition (base * res) + d */ + if (I64_ult(res, I64_of_int32(d))) caml_failwith("int_of_string"); + } + if (p != String_val(s) + caml_string_length(s)){ + caml_failwith("int_of_string"); + } + if (base == 10) { + if (I64_ult((sign >= 0 ? max_int64_pos : max_int64_neg), res)) + caml_failwith("int_of_string"); + } + if (sign < 0) res = I64_neg(res); + return caml_copy_int64(res); +} + +CAMLprim value caml_int64_bits_of_float(value vd) +{ + union { double d; int64 i; int32 h[2]; } u; + u.d = Double_val(vd); +#if defined(__arm__) && !defined(__ARM_EABI__) + { int32 t = u.h[0]; u.h[0] = u.h[1]; u.h[1] = t; } +#endif + return caml_copy_int64(u.i); +} + +CAMLprim value caml_int64_float_of_bits(value vi) +{ + union { double d; int64 i; int32 h[2]; } u; + u.i = Int64_val(vi); +#if defined(__arm__) && !defined(__ARM_EABI__) + { int32 t = u.h[0]; u.h[0] = u.h[1]; u.h[1] = t; } +#endif + return caml_copy_double(u.d); +} + +/* Native integers */ + +static int nativeint_cmp(value v1, value v2) +{ + intnat i1 = Nativeint_val(v1); + intnat i2 = Nativeint_val(v2); + return (i1 > i2) - (i1 < i2); +} + +static intnat nativeint_hash(value v) +{ + return Nativeint_val(v); +} + +static void nativeint_serialize(value v, uintnat * wsize_32, + uintnat * wsize_64) +{ + intnat l = Nativeint_val(v); +#ifdef ARCH_SIXTYFOUR + if (l <= 0x7FFFFFFFL && l >= -0x80000000L) { + caml_serialize_int_1(1); + caml_serialize_int_4((int32) l); + } else { + caml_serialize_int_1(2); + caml_serialize_int_8(l); + } +#else + caml_serialize_int_1(1); + caml_serialize_int_4(l); +#endif + *wsize_32 = 4; + *wsize_64 = 8; +} + +static uintnat nativeint_deserialize(void * dst) +{ + switch (caml_deserialize_uint_1()) { + case 1: + *((intnat *) dst) = caml_deserialize_sint_4(); + break; + case 2: +#ifdef ARCH_SIXTYFOUR + *((intnat *) dst) = caml_deserialize_sint_8(); +#else + caml_deserialize_error("input_value: native integer value too large"); +#endif + break; + default: + caml_deserialize_error("input_value: ill-formed native integer"); + } + return sizeof(long); +} + +CAMLexport struct custom_operations caml_nativeint_ops = { + "_n", + custom_finalize_default, + nativeint_cmp, + nativeint_hash, + nativeint_serialize, + nativeint_deserialize +}; + +CAMLexport value caml_copy_nativeint(intnat i) +{ + value res = caml_alloc_custom(&caml_nativeint_ops, sizeof(intnat), 0, 1); + Nativeint_val(res) = i; + return res; +} + +CAMLprim value caml_nativeint_neg(value v) +{ return caml_copy_nativeint(- Nativeint_val(v)); } + +CAMLprim value caml_nativeint_add(value v1, value v2) +{ return caml_copy_nativeint(Nativeint_val(v1) + Nativeint_val(v2)); } + +CAMLprim value caml_nativeint_sub(value v1, value v2) +{ return caml_copy_nativeint(Nativeint_val(v1) - Nativeint_val(v2)); } + +CAMLprim value caml_nativeint_mul(value v1, value v2) +{ return caml_copy_nativeint(Nativeint_val(v1) * Nativeint_val(v2)); } + +#define Nativeint_min_int ((intnat) 1 << (sizeof(intnat) * 8 - 1)) + +CAMLprim value caml_nativeint_div(value v1, value v2) +{ + intnat dividend = Nativeint_val(v1); + intnat divisor = Nativeint_val(v2); + if (divisor == 0) caml_raise_zero_divide(); + /* PR#4740: on some processors, modulus crashes if division overflows. + Implement the same behavior as for type "int". */ + if (dividend == Nativeint_min_int && divisor == -1) return v1; +#ifdef NONSTANDARD_DIV_MOD + return caml_copy_nativeint(caml_safe_div(dividend, divisor)); +#else + return caml_copy_nativeint(dividend / divisor); +#endif +} + +CAMLprim value caml_nativeint_mod(value v1, value v2) +{ + intnat dividend = Nativeint_val(v1); + intnat divisor = Nativeint_val(v2); + if (divisor == 0) caml_raise_zero_divide(); + /* PR#4740: on some processors, modulus crashes if division overflows. + Implement the same behavior as for type "int". */ + if (dividend == Nativeint_min_int && divisor == -1) return caml_copy_nativeint(0); +#ifdef NONSTANDARD_DIV_MOD + return caml_copy_nativeint(caml_safe_mod(dividend, divisor)); +#else + return caml_copy_nativeint(dividend % divisor); +#endif +} + +CAMLprim value caml_nativeint_and(value v1, value v2) +{ return caml_copy_nativeint(Nativeint_val(v1) & Nativeint_val(v2)); } + +CAMLprim value caml_nativeint_or(value v1, value v2) +{ return caml_copy_nativeint(Nativeint_val(v1) | Nativeint_val(v2)); } + +CAMLprim value caml_nativeint_xor(value v1, value v2) +{ return caml_copy_nativeint(Nativeint_val(v1) ^ Nativeint_val(v2)); } + +CAMLprim value caml_nativeint_shift_left(value v1, value v2) +{ return caml_copy_nativeint(Nativeint_val(v1) << Int_val(v2)); } + +CAMLprim value caml_nativeint_shift_right(value v1, value v2) +{ return caml_copy_nativeint(Nativeint_val(v1) >> Int_val(v2)); } + +CAMLprim value caml_nativeint_shift_right_unsigned(value v1, value v2) +{ return caml_copy_nativeint((uintnat)Nativeint_val(v1) >> Int_val(v2)); } + +CAMLprim value caml_nativeint_of_int(value v) +{ return caml_copy_nativeint(Long_val(v)); } + +CAMLprim value caml_nativeint_to_int(value v) +{ return Val_long(Nativeint_val(v)); } + +CAMLprim value caml_nativeint_of_float(value v) +{ return caml_copy_nativeint((intnat)(Double_val(v))); } + +CAMLprim value caml_nativeint_to_float(value v) +{ return caml_copy_double((double)(Nativeint_val(v))); } + +CAMLprim value caml_nativeint_of_int32(value v) +{ return caml_copy_nativeint(Int32_val(v)); } + +CAMLprim value caml_nativeint_to_int32(value v) +{ return caml_copy_int32(Nativeint_val(v)); } + +CAMLprim value caml_nativeint_compare(value v1, value v2) +{ + intnat i1 = Nativeint_val(v1); + intnat i2 = Nativeint_val(v2); + int res = (i1 > i2) - (i1 < i2); + return Val_int(res); +} + +CAMLprim value caml_nativeint_format(value fmt, value arg) +{ + char format_string[FORMAT_BUFFER_SIZE]; + char default_format_buffer[FORMAT_BUFFER_SIZE]; + char * buffer; + char conv; + value res; + + buffer = parse_format(fmt, ARCH_INTNAT_PRINTF_FORMAT, + format_string, default_format_buffer, &conv); + sprintf(buffer, format_string, Nativeint_val(arg)); + res = caml_copy_string(buffer); + if (buffer != default_format_buffer) caml_stat_free(buffer); + return res; +} + +CAMLprim value caml_nativeint_of_string(value s) +{ + return caml_copy_nativeint(parse_intnat(s, 8 * sizeof(value))); +} |