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Commit 52ccd577 by Steven G. Kargl Committed by Steven G. Kargl
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arith.h: Update Copyright dates. 

2006-08-26  Steven G. Kargl  <kargls@comcast.net>

	* arith.h: Update Copyright dates.  Fix whitespace.
	* arith.c: Update Copyright dates.  Fix whitespace.  Fix comments.
	(gfc_arith_done_1): Clean up pedantic_min_int and subnormal.

From-SVN: r116480
parent 02ec74b9
Showing with 108 additions and 76 deletions
gcc/fortran/ChangeLog
2006-08-26 Steven G. Kargl <kargls@comcast.net>
* arith.h: Update Copyright dates. Fix whitespace.
* arith.c: Update Copyright dates. Fix whitespace. Fix comments.
(gfc_arith_done_1): Clean up pedantic_min_int and subnormal.
2006-08-26 Tobias Burnus <burnus@net-b.de>
* gfortran.texi: Note variable initialization causes SAVE attribute.
......
gcc/fortran/arith.c
/* Compiler arithmetic
Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation,
Inc.
Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
Contributed by Andy Vaught
This file is part of GCC.
......@@ -22,8 +22,8 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
/* Since target arithmetic must be done on the host, there has to
be some way of evaluating arithmetic expressions as the host
would evaluate them. We use the GNU MP library to do arithmetic,
and this file provides the interface. */
would evaluate them. We use the GNU MP library and the MPFR
library to do arithmetic, and this file provides the interface. */
#include "config.h"
#include "system.h"
......@@ -123,7 +123,6 @@ arctangent2 (mpfr_t y, mpfr_t x, mpfr_t result)
}
mpfr_clear (t);
}
......@@ -182,11 +181,11 @@ gfc_arith_init_1 (void)
mpfr_init (a);
mpz_init (r);
/* Convert the minimum/maximum values for each kind into their
/* Convert the minimum and maximum values for each kind into their
GNU MP representation. */
for (int_info = gfc_integer_kinds; int_info->kind != 0; int_info++)
{
/* Huge */
/* Huge */
mpz_set_ui (r, int_info->radix);
mpz_pow_ui (r, r, int_info->digits);
......@@ -215,7 +214,7 @@ gfc_arith_init_1 (void)
mpz_add (int_info->max_int, int_info->huge, int_info->huge);
mpz_add_ui (int_info->max_int, int_info->max_int, 1);
/* Range */
/* Range */
mpfr_set_z (a, int_info->huge, GFC_RND_MODE);
mpfr_log10 (a, a, GFC_RND_MODE);
mpfr_trunc (a, a);
......@@ -234,33 +233,33 @@ gfc_arith_init_1 (void)
mpfr_init (c);
/* huge(x) = (1 - b**(-p)) * b**(emax-1) * b */
/* a = 1 - b**(-p) */
/* a = 1 - b**(-p) */
mpfr_set_ui (a, 1, GFC_RND_MODE);
mpfr_set_ui (b, real_info->radix, GFC_RND_MODE);
mpfr_pow_si (b, b, -real_info->digits, GFC_RND_MODE);
mpfr_sub (a, a, b, GFC_RND_MODE);
/* c = b**(emax-1) */
/* c = b**(emax-1) */
mpfr_set_ui (b, real_info->radix, GFC_RND_MODE);
mpfr_pow_ui (c, b, real_info->max_exponent - 1, GFC_RND_MODE);
/* a = a * c = (1 - b**(-p)) * b**(emax-1) */
/* a = a * c = (1 - b**(-p)) * b**(emax-1) */
mpfr_mul (a, a, c, GFC_RND_MODE);
/* a = (1 - b**(-p)) * b**(emax-1) * b */
/* a = (1 - b**(-p)) * b**(emax-1) * b */
mpfr_mul_ui (a, a, real_info->radix, GFC_RND_MODE);
mpfr_init (real_info->huge);
mpfr_set (real_info->huge, a, GFC_RND_MODE);
/* tiny(x) = b**(emin-1) */
/* tiny(x) = b**(emin-1) */
mpfr_set_ui (b, real_info->radix, GFC_RND_MODE);
mpfr_pow_si (b, b, real_info->min_exponent - 1, GFC_RND_MODE);
mpfr_init (real_info->tiny);
mpfr_set (real_info->tiny, b, GFC_RND_MODE);
/* subnormal (x) = b**(emin - digit) */
/* subnormal (x) = b**(emin - digit) */
mpfr_set_ui (b, real_info->radix, GFC_RND_MODE);
mpfr_pow_si (b, b, real_info->min_exponent - real_info->digits,
GFC_RND_MODE);
......@@ -268,26 +267,27 @@ gfc_arith_init_1 (void)
mpfr_init (real_info->subnormal);
mpfr_set (real_info->subnormal, b, GFC_RND_MODE);
/* epsilon(x) = b**(1-p) */
/* epsilon(x) = b**(1-p) */
mpfr_set_ui (b, real_info->radix, GFC_RND_MODE);
mpfr_pow_si (b, b, 1 - real_info->digits, GFC_RND_MODE);
mpfr_init (real_info->epsilon);
mpfr_set (real_info->epsilon, b, GFC_RND_MODE);
/* range(x) = int(min(log10(huge(x)), -log10(tiny)) */
/* range(x) = int(min(log10(huge(x)), -log10(tiny)) */
mpfr_log10 (a, real_info->huge, GFC_RND_MODE);
mpfr_log10 (b, real_info->tiny, GFC_RND_MODE);
mpfr_neg (b, b, GFC_RND_MODE);
/* a = min(a, b) */
if (mpfr_cmp (a, b) > 0)
mpfr_set (a, b, GFC_RND_MODE); /* a = min(a, b) */
mpfr_set (a, b, GFC_RND_MODE);
mpfr_trunc (a, a);
gfc_mpfr_to_mpz (r, a);
real_info->range = mpz_get_si (r);
/* precision(x) = int((p - 1) * log10(b)) + k */
/* precision(x) = int((p - 1) * log10(b)) + k */
mpfr_set_ui (a, real_info->radix, GFC_RND_MODE);
mpfr_log10 (a, a, GFC_RND_MODE);
......@@ -296,8 +296,7 @@ gfc_arith_init_1 (void)
gfc_mpfr_to_mpz (r, a);
real_info->precision = mpz_get_si (r);
/* If the radix is an integral power of 10, add one to the
precision. */
/* If the radix is an integral power of 10, add one to the precision. */
for (i = 10; i <= real_info->radix; i *= 10)
if (i == real_info->radix)
real_info->precision++;
......@@ -323,6 +322,7 @@ gfc_arith_done_1 (void)
{
mpz_clear (ip->min_int);
mpz_clear (ip->max_int);
mpz_clear (ip->pedantic_min_int);
mpz_clear (ip->huge);
}
......@@ -331,6 +331,7 @@ gfc_arith_done_1 (void)
mpfr_clear (rp->epsilon);
mpfr_clear (rp->huge);
mpfr_clear (rp->tiny);
mpfr_clear (rp->subnormal);
}
}
......@@ -411,10 +412,10 @@ gfc_check_real_range (mpfr_t p, int kind)
}
else if (mpfr_cmp (q, gfc_real_kinds[i].tiny) < 0)
{
/* MPFR operates on a numbers with a given precision and enormous
exponential range. To represent subnormal numbers the exponent is
/* MPFR operates on a number with a given precision and enormous
exponential range. To represent subnormal numbers, the exponent is
allowed to become smaller than emin, but always retains the full
precision. This function resets unused bits to 0 to alleviate
precision. This code resets unused bits to 0 to alleviate
rounding problems. Note, a future version of MPFR will have a
mpfr_subnormalize() function, which handles this truncation in a
more efficient and robust way. */
......@@ -428,7 +429,7 @@ gfc_check_real_range (mpfr_t p, int kind)
for (j = k; j < gfc_real_kinds[i].digits; j++)
bin[j] = '0';
/* Need space for '0.', bin, 'E', and e */
s = (char *) gfc_getmem (strlen(bin)+10);
s = (char *) gfc_getmem (strlen(bin) + 10);
sprintf (s, "0.%sE%d", bin, (int) e);
mpfr_set_str (q, s, gfc_real_kinds[i].radix, GMP_RNDN);
......@@ -451,8 +452,7 @@ gfc_check_real_range (mpfr_t p, int kind)
}
/* Function to return a constant expression node of a given type and
kind. */
/* Function to return a constant expression node of a given type and kind. */
gfc_expr *
gfc_constant_result (bt type, int kind, locus * where)
......@@ -611,7 +611,6 @@ gfc_range_check (gfc_expr * e)
mpfr_set_inf (e->value.complex.i, mpfr_sgn (e->value.complex.i));
if (rc == ARITH_NAN)
mpfr_set_nan (e->value.complex.i);
break;
default:
......@@ -792,9 +791,6 @@ gfc_arith_times (gfc_expr * op1, gfc_expr * op2, gfc_expr ** resultp)
break;
case BT_COMPLEX:
/* FIXME: possible numericals problem. */
gfc_set_model (op1->value.complex.r);
mpfr_init (x);
mpfr_init (y);
......@@ -809,7 +805,6 @@ gfc_arith_times (gfc_expr * op1, gfc_expr * op2, gfc_expr ** resultp)
mpfr_clear (x);
mpfr_clear (y);
break;
default:
......@@ -872,7 +867,6 @@ gfc_arith_divide (gfc_expr * op1, gfc_expr * op2, gfc_expr ** resultp)
mpfr_init (y);
mpfr_init (div);
/* FIXME: possible numerical problems. */
mpfr_mul (x, op2->value.complex.r, op2->value.complex.r, GFC_RND_MODE);
mpfr_mul (y, op2->value.complex.i, op2->value.complex.i, GFC_RND_MODE);
mpfr_add (div, x, y, GFC_RND_MODE);
......@@ -892,7 +886,6 @@ gfc_arith_divide (gfc_expr * op1, gfc_expr * op2, gfc_expr ** resultp)
mpfr_clear (x);
mpfr_clear (y);
mpfr_clear (div);
break;
default:
......@@ -919,7 +912,6 @@ complex_reciprocal (gfc_expr * op)
mpfr_init (re);
mpfr_init (im);
/* FIXME: another possible numerical problem. */
mpfr_mul (mod, op->value.complex.r, op->value.complex.r, GFC_RND_MODE);
mpfr_mul (a, op->value.complex.i, op->value.complex.i, GFC_RND_MODE);
mpfr_add (mod, mod, a, GFC_RND_MODE);
......@@ -1038,7 +1030,6 @@ gfc_arith_power (gfc_expr * op1, gfc_expr * op2, gfc_expr ** resultp)
result->value.integer);
mpz_clear (unity_z);
}
break;
case BT_REAL:
......@@ -1140,7 +1131,7 @@ gfc_compare_expr (gfc_expr * op1, gfc_expr * op2)
/* Compare a pair of complex numbers. Naturally, this is only for
equality/nonequality. */
equality and nonequality. */
static int
compare_complex (gfc_expr * op1, gfc_expr * op2)
......@@ -1150,13 +1141,12 @@ compare_complex (gfc_expr * op1, gfc_expr * op2)
}
/* Given two constant strings and the inverse collating sequence,
compare the strings. We return -1 for a<b, 0 for a==b and 1 for
a>b. If the xcoll_table is NULL, we use the processor's default
collating sequence. */
/* Given two constant strings and the inverse collating sequence, compare the
strings. We return -1 for a < b, 0 for a == b and 1 for a > b. If the
xcoll_table is NULL, we use the processor's default collating sequence. */
int
gfc_compare_string (gfc_expr * a, gfc_expr * b, const int *xcoll_table)
gfc_compare_string (gfc_expr * a, gfc_expr * b, const int * xcoll_table)
{
int len, alen, blen, i, ac, bc;
......@@ -1168,7 +1158,7 @@ gfc_compare_string (gfc_expr * a, gfc_expr * b, const int *xcoll_table)
for (i = 0; i < len; i++)
{
/* We cast to unsigned char because default char, if it is signed,
would lead to ac<0 for string[i] > 127. */
would lead to ac < 0 for string[i] > 127. */
ac = (unsigned char) ((i < alen) ? a->value.character.string[i] : ' ');
bc = (unsigned char) ((i < blen) ? b->value.character.string[i] : ' ');
......@@ -1509,7 +1499,8 @@ eval_intrinsic (gfc_intrinsic_op operator,
switch (operator)
{
case INTRINSIC_NOT: /* Logical unary */
/* Logical unary */
case INTRINSIC_NOT:
if (op1->ts.type != BT_LOGICAL)
goto runtime;
......@@ -1519,7 +1510,7 @@ eval_intrinsic (gfc_intrinsic_op operator,
unary = 1;
break;
/* Logical binary operators */
/* Logical binary operators */
case INTRINSIC_OR:
case INTRINSIC_AND:
case INTRINSIC_NEQV:
......@@ -1533,8 +1524,9 @@ eval_intrinsic (gfc_intrinsic_op operator,
unary = 0;
break;
/* Numeric unary */
case INTRINSIC_UPLUS:
case INTRINSIC_UMINUS: /* Numeric unary */
case INTRINSIC_UMINUS:
if (!gfc_numeric_ts (&op1->ts))
goto runtime;
......@@ -1549,9 +1541,10 @@ eval_intrinsic (gfc_intrinsic_op operator,
unary = 1;
break;
/* Additional restrictions for ordering relations. */
case INTRINSIC_GE:
case INTRINSIC_LT: /* Additional restrictions */
case INTRINSIC_LE: /* for ordering relations. */
case INTRINSIC_LT:
case INTRINSIC_LE:
case INTRINSIC_GT:
if (op1->ts.type == BT_COMPLEX || op2->ts.type == BT_COMPLEX)
{
......@@ -1560,8 +1553,7 @@ eval_intrinsic (gfc_intrinsic_op operator,
goto runtime;
}
/* else fall through */
/* Fall through */
case INTRINSIC_EQ:
case INTRINSIC_NE:
if (op1->ts.type == BT_CHARACTER && op2->ts.type == BT_CHARACTER)
......@@ -1572,17 +1564,18 @@ eval_intrinsic (gfc_intrinsic_op operator,
break;
}
/* else fall through */
/* Fall through */
/* Numeric binary */
case INTRINSIC_PLUS:
case INTRINSIC_MINUS:
case INTRINSIC_TIMES:
case INTRINSIC_DIVIDE:
case INTRINSIC_POWER: /* Numeric binary */
case INTRINSIC_POWER:
if (!gfc_numeric_ts (&op1->ts) || !gfc_numeric_ts (&op2->ts))
goto runtime;
/* Insert any necessary type conversions to make the operands compatible. */
/* Insert any necessary type conversions to make the operands
compatible. */
temp.expr_type = EXPR_OP;
gfc_clear_ts (&temp.ts);
......@@ -1604,7 +1597,8 @@ eval_intrinsic (gfc_intrinsic_op operator,
unary = 0;
break;
case INTRINSIC_CONCAT: /* Character binary */
/* Character binary */
case INTRINSIC_CONCAT:
if (op1->ts.type != BT_CHARACTER || op2->ts.type != BT_CHARACTER)
goto runtime;
......@@ -1628,16 +1622,16 @@ eval_intrinsic (gfc_intrinsic_op operator,
if (op1->from_H
|| (op1->expr_type != EXPR_CONSTANT
&& (op1->expr_type != EXPR_ARRAY
|| !gfc_is_constant_expr (op1)
|| !gfc_expanded_ac (op1))))
|| !gfc_is_constant_expr (op1)
|| !gfc_expanded_ac (op1))))
goto runtime;
if (op2 != NULL
&& (op2->from_H
|| (op2->expr_type != EXPR_CONSTANT
&& (op2->expr_type != EXPR_ARRAY
|| !gfc_is_constant_expr (op2)
|| !gfc_expanded_ac (op2)))))
|| (op2->expr_type != EXPR_CONSTANT
&& (op2->expr_type != EXPR_ARRAY
|| !gfc_is_constant_expr (op2)
|| !gfc_expanded_ac (op2)))))
goto runtime;
if (unary)
......@@ -1646,7 +1640,7 @@ eval_intrinsic (gfc_intrinsic_op operator,
rc = reduce_binary (eval.f3, op1, op2, &result);
if (rc != ARITH_OK)
{ /* Something went wrong */
{ /* Something went wrong. */
gfc_error (gfc_arith_error (rc), &op1->where);
return NULL;
}
......@@ -1656,7 +1650,7 @@ eval_intrinsic (gfc_intrinsic_op operator,
return result;
runtime:
/* Create a run-time expression */
/* Create a run-time expression. */
result = gfc_get_expr ();
result->ts = temp.ts;
......@@ -1673,8 +1667,9 @@ runtime:
/* Modify type of expression for zero size array. */
static gfc_expr *
eval_type_intrinsic0 (gfc_intrinsic_op operator, gfc_expr *op)
eval_type_intrinsic0 (gfc_intrinsic_op operator, gfc_expr * op)
{
if (op == NULL)
gfc_internal_error ("eval_type_intrinsic0(): op NULL");
......@@ -1776,115 +1771,132 @@ eval_intrinsic_f3 (gfc_intrinsic_op operator,
}
gfc_expr *
gfc_uplus (gfc_expr * op)
{
return eval_intrinsic_f2 (INTRINSIC_UPLUS, gfc_arith_uplus, op, NULL);
}
gfc_expr *
gfc_uminus (gfc_expr * op)
{
return eval_intrinsic_f2 (INTRINSIC_UMINUS, gfc_arith_uminus, op, NULL);
}
gfc_expr *
gfc_add (gfc_expr * op1, gfc_expr * op2)
{
return eval_intrinsic_f3 (INTRINSIC_PLUS, gfc_arith_plus, op1, op2);
}
gfc_expr *
gfc_subtract (gfc_expr * op1, gfc_expr * op2)
{
return eval_intrinsic_f3 (INTRINSIC_MINUS, gfc_arith_minus, op1, op2);
}
gfc_expr *
gfc_multiply (gfc_expr * op1, gfc_expr * op2)
{
return eval_intrinsic_f3 (INTRINSIC_TIMES, gfc_arith_times, op1, op2);
}
gfc_expr *
gfc_divide (gfc_expr * op1, gfc_expr * op2)
{
return eval_intrinsic_f3 (INTRINSIC_DIVIDE, gfc_arith_divide, op1, op2);
}
gfc_expr *
gfc_power (gfc_expr * op1, gfc_expr * op2)
{
return eval_intrinsic_f3 (INTRINSIC_POWER, gfc_arith_power, op1, op2);
}
gfc_expr *
gfc_concat (gfc_expr * op1, gfc_expr * op2)
{
return eval_intrinsic_f3 (INTRINSIC_CONCAT, gfc_arith_concat, op1, op2);
}
gfc_expr *
gfc_and (gfc_expr * op1, gfc_expr * op2)
{
return eval_intrinsic_f3 (INTRINSIC_AND, gfc_arith_and, op1, op2);
}
gfc_expr *
gfc_or (gfc_expr * op1, gfc_expr * op2)
{
return eval_intrinsic_f3 (INTRINSIC_OR, gfc_arith_or, op1, op2);
}
gfc_expr *
gfc_not (gfc_expr * op1)
{
return eval_intrinsic_f2 (INTRINSIC_NOT, gfc_arith_not, op1, NULL);
}
gfc_expr *
gfc_eqv (gfc_expr * op1, gfc_expr * op2)
{
return eval_intrinsic_f3 (INTRINSIC_EQV, gfc_arith_eqv, op1, op2);
}
gfc_expr *
gfc_neqv (gfc_expr * op1, gfc_expr * op2)
{
return eval_intrinsic_f3 (INTRINSIC_NEQV, gfc_arith_neqv, op1, op2);
}
gfc_expr *
gfc_eq (gfc_expr * op1, gfc_expr * op2)
{
return eval_intrinsic_f3 (INTRINSIC_EQ, gfc_arith_eq, op1, op2);
}
gfc_expr *
gfc_ne (gfc_expr * op1, gfc_expr * op2)
{
return eval_intrinsic_f3 (INTRINSIC_NE, gfc_arith_ne, op1, op2);
}
gfc_expr *
gfc_gt (gfc_expr * op1, gfc_expr * op2)
{
return eval_intrinsic_f3 (INTRINSIC_GT, gfc_arith_gt, op1, op2);
}
gfc_expr *
gfc_ge (gfc_expr * op1, gfc_expr * op2)
{
return eval_intrinsic_f3 (INTRINSIC_GE, gfc_arith_ge, op1, op2);
}
gfc_expr *
gfc_lt (gfc_expr * op1, gfc_expr * op2)
{
return eval_intrinsic_f3 (INTRINSIC_LT, gfc_arith_lt, op1, op2);
}
gfc_expr *
gfc_le (gfc_expr * op1, gfc_expr * op2)
{
......@@ -1895,13 +1907,13 @@ gfc_le (gfc_expr * op1, gfc_expr * op2)
/* Convert an integer string to an expression node. */
gfc_expr *
gfc_convert_integer (const char *buffer, int kind, int radix, locus * where)
gfc_convert_integer (const char * buffer, int kind, int radix, locus * where)
{
gfc_expr *e;
const char *t;
e = gfc_constant_result (BT_INTEGER, kind, where);
/* a leading plus is allowed, but not by mpz_set_str */
/* A leading plus is allowed, but not by mpz_set_str. */
if (buffer[0] == '+')
t = buffer + 1;
else
......@@ -1915,7 +1927,7 @@ gfc_convert_integer (const char *buffer, int kind, int radix, locus * where)
/* Convert a real string to an expression node. */
gfc_expr *
gfc_convert_real (const char *buffer, int kind, locus * where)
gfc_convert_real (const char * buffer, int kind, locus * where)
{
gfc_expr *e;
......@@ -1989,6 +2001,7 @@ arith_error (arith rc, gfc_typespec * from, gfc_typespec * to, locus * where)
NaN, etc. */
}
/* Convert integers to integers. */
gfc_expr *
......@@ -2269,28 +2282,35 @@ gfc_log2log (gfc_expr * src, int kind)
return result;
}
/* Convert logical to integer. */
gfc_expr *
gfc_log2int (gfc_expr *src, int kind)
{
gfc_expr *result;
result = gfc_constant_result (BT_INTEGER, kind, &src->where);
mpz_set_si (result->value.integer, src->value.logical);
return result;
}
/* Convert integer to logical. */
gfc_expr *
gfc_int2log (gfc_expr *src, int kind)
{
gfc_expr *result;
result = gfc_constant_result (BT_LOGICAL, kind, &src->where);
result->value.logical = (mpz_cmp_si (src->value.integer, 0) != 0);
return result;
}
/* Convert Hollerith to integer. The constant will be padded or truncated. */
gfc_expr *
......@@ -2320,12 +2340,13 @@ gfc_hollerith2int (gfc_expr * src, int kind)
if (len < kind)
memset (&result->value.character.string[len], ' ', kind - len);
result->value.character.string[kind] = '\0'; /* For debugger */
result->value.character.string[kind] = '\0'; /* For debugger */
result->value.character.length = kind;
return result;
}
/* Convert Hollerith to real. The constant will be padded or truncated. */
gfc_expr *
......@@ -2355,12 +2376,13 @@ gfc_hollerith2real (gfc_expr * src, int kind)
if (len < kind)
memset (&result->value.character.string[len], ' ', kind - len);
result->value.character.string[kind] = '\0'; /* For debugger */
result->value.character.string[kind] = '\0'; /* For debugger. */
result->value.character.length = kind;
return result;
}
/* Convert Hollerith to complex. The constant will be padded or truncated. */
gfc_expr *
......@@ -2392,12 +2414,13 @@ gfc_hollerith2complex (gfc_expr * src, int kind)
if (len < kind)
memset (&result->value.character.string[len], ' ', kind - len);
result->value.character.string[kind] = '\0'; /* For debugger */
result->value.character.string[kind] = '\0'; /* For debugger */
result->value.character.length = kind;
return result;
}
/* Convert Hollerith to character. */
gfc_expr *
......@@ -2413,6 +2436,7 @@ gfc_hollerith2character (gfc_expr * src, int kind)
return result;
}
/* Convert Hollerith to logical. The constant will be padded or truncated. */
gfc_expr *
......@@ -2442,14 +2466,15 @@ gfc_hollerith2logical (gfc_expr * src, int kind)
if (len < kind)
memset (&result->value.character.string[len], ' ', kind - len);
result->value.character.string[kind] = '\0'; /* For debugger */
result->value.character.string[kind] = '\0'; /* For debugger */
result->value.character.length = kind;
return result;
}
/* Returns an initializer whose value is one higher than the value of the
LAST_INITIALIZER argument. If that is argument is NULL, the
LAST_INITIALIZER argument. If the argument is NULL, the
initializers value will be set to zero. The initializer's kind
will be set to gfc_c_int_kind.
......@@ -2458,7 +2483,7 @@ gfc_hollerith2logical (gfc_expr * src, int kind)
here if an initializer exceeds gfc_c_int_kind. */
gfc_expr *
gfc_enum_initializer (gfc_expr *last_initializer, locus where)
gfc_enum_initializer (gfc_expr * last_initializer, locus where)
{
gfc_expr *result;
......@@ -2485,7 +2510,7 @@ gfc_enum_initializer (gfc_expr *last_initializer, locus where)
else
{
/* Control comes here, if it's the very first enumerator and no
initializer has been given. It will be initialized to ZERO (0). */
initializer has been given. It will be initialized to zero. */
mpz_set_si (result->value.integer, 0);
}
......
gcc/fortran/arith.h
/* Compiler arithmetic header.
Copyright (C) 2000, 2001, 2002, 2004 Free Software Foundation, Inc.
Copyright (C) 2000, 2001, 2002, 2004, 2005, 2006
Free Software Foundation, Inc.
Contributed by Steven Bosscher
This file is part of GCC.
......@@ -29,7 +30,7 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
to a mpz_t, so declare a function for this as well. */
void arctangent2 (mpfr_t, mpfr_t, mpfr_t);
void gfc_mpfr_to_mpz(mpz_t, mpfr_t);
void gfc_mpfr_to_mpz (mpz_t, mpfr_t);
void gfc_set_model_kind (int);
void gfc_set_model (mpfr_t);
......
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