#include "config.h"
#include "system.h"
-#include "coretypes.h"
-#include "tm.h"
#include "cpplib.h"
#include "cpphash.h"
/* Some simple utility routines on double integers. */
#define num_zerop(num) ((num.low | num.high) == 0)
#define num_eq(num1, num2) (num1.low == num2.low && num1.high == num2.high)
-static bool num_positive PARAMS ((cpp_num, size_t));
-static bool num_greater_eq PARAMS ((cpp_num, cpp_num, size_t));
-static cpp_num num_trim PARAMS ((cpp_num, size_t));
-static cpp_num num_part_mul PARAMS ((cpp_num_part, cpp_num_part));
-
-static cpp_num num_unary_op PARAMS ((cpp_reader *, cpp_num, enum cpp_ttype));
-static cpp_num num_binary_op PARAMS ((cpp_reader *, cpp_num, cpp_num,
- enum cpp_ttype));
-static cpp_num num_negate PARAMS ((cpp_num, size_t));
-static cpp_num num_bitwise_op PARAMS ((cpp_reader *, cpp_num, cpp_num,
- enum cpp_ttype));
-static cpp_num num_inequality_op PARAMS ((cpp_reader *, cpp_num, cpp_num,
- enum cpp_ttype));
-static cpp_num num_equality_op PARAMS ((cpp_reader *, cpp_num, cpp_num,
- enum cpp_ttype));
-static cpp_num num_mul PARAMS ((cpp_reader *, cpp_num, cpp_num));
-static cpp_num num_div_op PARAMS ((cpp_reader *, cpp_num, cpp_num,
- enum cpp_ttype));
-static cpp_num num_lshift PARAMS ((cpp_num, size_t, size_t));
-static cpp_num num_rshift PARAMS ((cpp_num, size_t, size_t));
-
-static cpp_num append_digit PARAMS ((cpp_num, int, int, size_t));
-static cpp_num parse_defined PARAMS ((cpp_reader *));
-static cpp_num eval_token PARAMS ((cpp_reader *, const cpp_token *));
-static struct op *reduce PARAMS ((cpp_reader *, struct op *, enum cpp_ttype));
-static unsigned int interpret_float_suffix PARAMS ((const uchar *, size_t));
-static unsigned int interpret_int_suffix PARAMS ((const uchar *, size_t));
-static void check_promotion PARAMS ((cpp_reader *, const struct op *));
+static bool num_positive (cpp_num, size_t);
+static bool num_greater_eq (cpp_num, cpp_num, size_t);
+static cpp_num num_trim (cpp_num, size_t);
+static cpp_num num_part_mul (cpp_num_part, cpp_num_part);
+
+static cpp_num num_unary_op (cpp_reader *, cpp_num, enum cpp_ttype);
+static cpp_num num_binary_op (cpp_reader *, cpp_num, cpp_num, enum cpp_ttype);
+static cpp_num num_negate (cpp_num, size_t);
+static cpp_num num_bitwise_op (cpp_reader *, cpp_num, cpp_num, enum cpp_ttype);
+static cpp_num num_inequality_op (cpp_reader *, cpp_num, cpp_num,
+ enum cpp_ttype);
+static cpp_num num_equality_op (cpp_reader *, cpp_num, cpp_num,
+ enum cpp_ttype);
+static cpp_num num_mul (cpp_reader *, cpp_num, cpp_num);
+static cpp_num num_div_op (cpp_reader *, cpp_num, cpp_num, enum cpp_ttype);
+static cpp_num num_lshift (cpp_num, size_t, size_t);
+static cpp_num num_rshift (cpp_num, size_t, size_t);
+
+static cpp_num append_digit (cpp_num, int, int, size_t);
+static cpp_num parse_defined (cpp_reader *);
+static cpp_num eval_token (cpp_reader *, const cpp_token *);
+static struct op *reduce (cpp_reader *, struct op *, enum cpp_ttype);
+static unsigned int interpret_float_suffix (const uchar *, size_t);
+static unsigned int interpret_int_suffix (const uchar *, size_t);
+static void check_promotion (cpp_reader *, const struct op *);
/* Token type abuse to create unary plus and minus operators. */
#define CPP_UPLUS (CPP_LAST_CPP_OP + 1)
/* With -O2, gcc appears to produce nice code, moving the error
message load and subsequent jump completely out of the main path. */
#define SYNTAX_ERROR(msgid) \
- do { cpp_error (pfile, DL_ERROR, msgid); goto syntax_error; } while(0)
+ do { cpp_error (pfile, CPP_DL_ERROR, msgid); goto syntax_error; } while(0)
#define SYNTAX_ERROR2(msgid, arg) \
- do { cpp_error (pfile, DL_ERROR, msgid, arg); goto syntax_error; } while(0)
+ do { cpp_error (pfile, CPP_DL_ERROR, msgid, arg); goto syntax_error; } \
+ while(0)
/* Subroutine of cpp_classify_number. S points to a float suffix of
length LEN, possibly zero. Returns 0 for an invalid suffix, or a
flag vector describing the suffix. */
static unsigned int
-interpret_float_suffix (s, len)
- const uchar *s;
- size_t len;
+interpret_float_suffix (const uchar *s, size_t len)
{
size_t f = 0, l = 0, i = 0;
of length LEN, possibly zero. Returns 0 for an invalid suffix, or a
flag vector describing the suffix. */
static unsigned int
-interpret_int_suffix (s, len)
- const uchar *s;
- size_t len;
+interpret_int_suffix (const uchar *s, size_t len)
{
size_t u, l, i;
floating point, or invalid), radix (decimal, octal, hexadecimal),
and type suffixes. */
unsigned int
-cpp_classify_number (pfile, token)
- cpp_reader *pfile;
- const cpp_token *token;
+cpp_classify_number (cpp_reader *pfile, const cpp_token *token)
{
const uchar *str = token->val.str.text;
const uchar *limit;
if (float_flag != NOT_FLOAT)
{
if (radix == 16 && CPP_PEDANTIC (pfile) && !CPP_OPTION (pfile, c99))
- cpp_error (pfile, DL_PEDWARN,
+ cpp_error (pfile, CPP_DL_PEDWARN,
"use of C99 hexadecimal floating constant");
if (float_flag == AFTER_EXPON)
result = interpret_float_suffix (str, limit - str);
if (result == 0)
{
- cpp_error (pfile, DL_ERROR,
+ cpp_error (pfile, CPP_DL_ERROR,
"invalid suffix \"%.*s\" on floating constant",
(int) (limit - str), str);
return CPP_N_INVALID;
if (limit != str
&& CPP_WTRADITIONAL (pfile)
&& ! cpp_sys_macro_p (pfile))
- cpp_error (pfile, DL_WARNING,
+ cpp_error (pfile, CPP_DL_WARNING,
"traditional C rejects the \"%.*s\" suffix",
(int) (limit - str), str);
result = interpret_int_suffix (str, limit - str);
if (result == 0)
{
- cpp_error (pfile, DL_ERROR,
+ cpp_error (pfile, CPP_DL_ERROR,
"invalid suffix \"%.*s\" on integer constant",
(int) (limit - str), str);
return CPP_N_INVALID;
int large = (result & CPP_N_WIDTH) == CPP_N_LARGE;
if (u_or_i || (large && CPP_OPTION (pfile, warn_long_long)))
- cpp_error (pfile, DL_WARNING,
+ cpp_error (pfile, CPP_DL_WARNING,
"traditional C rejects the \"%.*s\" suffix",
(int) (limit - str), str);
}
if ((result & CPP_N_WIDTH) == CPP_N_LARGE
&& ! CPP_OPTION (pfile, c99)
&& CPP_OPTION (pfile, warn_long_long))
- cpp_error (pfile, DL_PEDWARN, "use of C99 long long integer constant");
+ cpp_error (pfile, CPP_DL_PEDWARN,
+ "use of C99 long long integer constant");
result |= CPP_N_INTEGER;
}
if ((result & CPP_N_IMAGINARY) && CPP_PEDANTIC (pfile))
- cpp_error (pfile, DL_PEDWARN, "imaginary constants are a GCC extension");
+ cpp_error (pfile, CPP_DL_PEDWARN,
+ "imaginary constants are a GCC extension");
if (radix == 10)
result |= CPP_N_DECIMAL;
of precision options->precision.
We do not provide any interface for decimal->float conversion,
- because the preprocessor doesn't need it and the floating point
- handling in GCC proper is too ugly to speak of. */
+ because the preprocessor doesn't need it and we don't want to
+ drag in GCC's floating point emulator. */
cpp_num
-cpp_interpret_integer (pfile, token, type)
- cpp_reader *pfile;
- const cpp_token *token;
- unsigned int type;
+cpp_interpret_integer (cpp_reader *pfile, const cpp_token *token,
+ unsigned int type)
{
const uchar *p, *end;
cpp_num result;
}
if (overflow)
- cpp_error (pfile, DL_PEDWARN,
+ cpp_error (pfile, CPP_DL_PEDWARN,
"integer constant is too large for its type");
/* If too big to be signed, consider it unsigned. Only warn for
decimal numbers. Traditional numbers were always signed (but
&& !num_positive (result, precision))
{
if (base == 10)
- cpp_error (pfile, DL_WARNING,
+ cpp_error (pfile, CPP_DL_WARNING,
"integer constant is so large that it is unsigned");
result.unsignedp = true;
}
return result;
}
-/* Append DIGIT to NUM, a number of PRECISION bits being read in base
- BASE. */
+/* Append DIGIT to NUM, a number of PRECISION bits being read in base BASE. */
static cpp_num
-append_digit (num, digit, base, precision)
- cpp_num num;
- int digit, base;
- size_t precision;
+append_digit (cpp_num num, int digit, int base, size_t precision)
{
cpp_num result;
unsigned int shift = 3 + (base == 16);
/* Handle meeting "defined" in a preprocessor expression. */
static cpp_num
-parse_defined (pfile)
- cpp_reader *pfile;
+parse_defined (cpp_reader *pfile)
{
cpp_num result;
int paren = 0;
node = token->val.node;
if (paren && cpp_get_token (pfile)->type != CPP_CLOSE_PAREN)
{
- cpp_error (pfile, DL_ERROR, "missing ')' after \"defined\"");
+ cpp_error (pfile, CPP_DL_ERROR, "missing ')' after \"defined\"");
node = 0;
}
}
else
{
- cpp_error (pfile, DL_ERROR,
+ cpp_error (pfile, CPP_DL_ERROR,
"operator \"defined\" requires an identifier");
if (token->flags & NAMED_OP)
{
op.flags = 0;
op.type = token->type;
- cpp_error (pfile, DL_ERROR,
+ cpp_error (pfile, CPP_DL_ERROR,
"(\"%s\" is an alternative token for \"%s\" in C++)",
cpp_token_as_text (pfile, token),
cpp_token_as_text (pfile, &op));
if (node)
{
- if (pfile->context != initial_context)
- cpp_error (pfile, DL_WARNING,
+ if (pfile->context != initial_context && CPP_PEDANTIC (pfile))
+ cpp_error (pfile, CPP_DL_WARNING,
"this use of \"defined\" may not be portable");
_cpp_mark_macro_used (node);
number or character constant, or the result of the "defined" or "#"
operators). */
static cpp_num
-eval_token (pfile, token)
- cpp_reader *pfile;
- const cpp_token *token;
+eval_token (cpp_reader *pfile, const cpp_token *token)
{
cpp_num result;
unsigned int temp;
switch (temp & CPP_N_CATEGORY)
{
case CPP_N_FLOATING:
- cpp_error (pfile, DL_ERROR,
+ cpp_error (pfile, CPP_DL_ERROR,
"floating constant in preprocessor expression");
break;
case CPP_N_INTEGER:
if (!(temp & CPP_N_IMAGINARY))
return cpp_interpret_integer (pfile, token, temp);
- cpp_error (pfile, DL_ERROR,
+ cpp_error (pfile, CPP_DL_ERROR,
"imaginary number in preprocessor expression");
break;
result.high = 0;
result.low = 0;
if (CPP_OPTION (pfile, warn_undef) && !pfile->state.skip_eval)
- cpp_error (pfile, DL_WARNING, "\"%s\" is not defined",
+ cpp_error (pfile, CPP_DL_WARNING, "\"%s\" is not defined",
NODE_NAME (token->val.node));
}
break;
stored in the 'value' field of the stack element of the operator
that precedes it. */
bool
-_cpp_parse_expr (pfile)
- cpp_reader *pfile;
+_cpp_parse_expr (cpp_reader *pfile)
{
struct op *top = pfile->op_stack;
unsigned int lex_count;
if (top != pfile->op_stack)
{
- cpp_error (pfile, DL_ICE, "unbalanced stack in #if");
+ cpp_error (pfile, CPP_DL_ICE, "unbalanced stack in #if");
syntax_error:
return false; /* Return false on syntax error. */
}
pushing operator OP. Returns NULL on error, otherwise the top of
the stack. */
static struct op *
-reduce (pfile, top, op)
- cpp_reader *pfile;
- struct op *top;
- enum cpp_ttype op;
+reduce (cpp_reader *pfile, struct op *top, enum cpp_ttype op)
{
unsigned int prio;
if (top->op <= CPP_EQ || top->op > CPP_LAST_CPP_OP + 2)
{
bad_op:
- cpp_error (pfile, DL_ICE, "impossible operator '%u'", top->op);
+ cpp_error (pfile, CPP_DL_ICE, "impossible operator '%u'", top->op);
return 0;
}
case CPP_OPEN_PAREN:
if (op != CPP_CLOSE_PAREN)
{
- cpp_error (pfile, DL_ERROR, "missing ')' in expression");
+ cpp_error (pfile, CPP_DL_ERROR, "missing ')' in expression");
return 0;
}
top--;
continue;
case CPP_QUERY:
- cpp_error (pfile, DL_ERROR, "'?' without following ':'");
+ cpp_error (pfile, CPP_DL_ERROR, "'?' without following ':'");
return 0;
default:
top--;
if (top->value.overflow && !pfile->state.skip_eval)
- cpp_error (pfile, DL_PEDWARN,
+ cpp_error (pfile, CPP_DL_PEDWARN,
"integer overflow in preprocessor expression");
}
if (op == CPP_CLOSE_PAREN)
{
- cpp_error (pfile, DL_ERROR, "missing '(' in expression");
+ cpp_error (pfile, CPP_DL_ERROR, "missing '(' in expression");
return 0;
}
/* Returns the position of the old top of stack after expansion. */
struct op *
-_cpp_expand_op_stack (pfile)
- cpp_reader *pfile;
+_cpp_expand_op_stack (cpp_reader *pfile)
{
size_t old_size = (size_t) (pfile->op_limit - pfile->op_stack);
size_t new_size = old_size * 2 + 20;
- pfile->op_stack = (struct op *) xrealloc (pfile->op_stack,
- new_size * sizeof (struct op));
+ pfile->op_stack = xrealloc (pfile->op_stack, new_size * sizeof (struct op));
pfile->op_limit = pfile->op_stack + new_size;
return pfile->op_stack + old_size;
/* Emits a warning if the effective sign of either operand of OP
changes because of integer promotions. */
static void
-check_promotion (pfile, op)
- cpp_reader *pfile;
- const struct op *op;
+check_promotion (cpp_reader *pfile, const struct op *op)
{
if (op->value.unsignedp == op[-1].value.unsignedp)
return;
if (op->value.unsignedp)
{
if (!num_positive (op[-1].value, CPP_OPTION (pfile, precision)))
- cpp_error (pfile, DL_WARNING,
+ cpp_error (pfile, CPP_DL_WARNING,
"the left operand of \"%s\" changes sign when promoted",
cpp_token_as_text (pfile, op->token));
}
else if (!num_positive (op->value, CPP_OPTION (pfile, precision)))
- cpp_error (pfile, DL_WARNING,
+ cpp_error (pfile, CPP_DL_WARNING,
"the right operand of \"%s\" changes sign when promoted",
cpp_token_as_text (pfile, op->token));
}
/* Clears the unused high order bits of the number pointed to by PNUM. */
static cpp_num
-num_trim (num, precision)
- cpp_num num;
- size_t precision;
+num_trim (cpp_num num, size_t precision)
{
if (precision > PART_PRECISION)
{
/* True iff A (presumed signed) >= 0. */
static bool
-num_positive (num, precision)
- cpp_num num;
- size_t precision;
+num_positive (cpp_num num, size_t precision)
{
if (precision > PART_PRECISION)
{
/* Sign extend a number, with PRECISION significant bits and all
others assumed clear, to fill out a cpp_num structure. */
cpp_num
-cpp_num_sign_extend (num, precision)
- cpp_num num;
- size_t precision;
+cpp_num_sign_extend (cpp_num num, size_t precision)
{
if (!num.unsignedp)
{
/* Returns the negative of NUM. */
static cpp_num
-num_negate (num, precision)
- cpp_num num;
- size_t precision;
+num_negate (cpp_num num, size_t precision)
{
cpp_num copy;
/* Returns true if A >= B. */
static bool
-num_greater_eq (pa, pb, precision)
- cpp_num pa, pb;
- size_t precision;
+num_greater_eq (cpp_num pa, cpp_num pb, size_t precision)
{
bool unsignedp;
/* Returns LHS OP RHS, where OP is a bit-wise operation. */
static cpp_num
-num_bitwise_op (pfile, lhs, rhs, op)
- cpp_reader *pfile ATTRIBUTE_UNUSED;
- cpp_num lhs, rhs;
- enum cpp_ttype op;
+num_bitwise_op (cpp_reader *pfile ATTRIBUTE_UNUSED,
+ cpp_num lhs, cpp_num rhs, enum cpp_ttype op)
{
lhs.overflow = false;
lhs.unsignedp = lhs.unsignedp || rhs.unsignedp;
/* Returns LHS OP RHS, where OP is an inequality. */
static cpp_num
-num_inequality_op (pfile, lhs, rhs, op)
- cpp_reader *pfile;
- cpp_num lhs, rhs;
- enum cpp_ttype op;
+num_inequality_op (cpp_reader *pfile, cpp_num lhs, cpp_num rhs,
+ enum cpp_ttype op)
{
bool gte = num_greater_eq (lhs, rhs, CPP_OPTION (pfile, precision));
/* Returns LHS OP RHS, where OP is == or !=. */
static cpp_num
-num_equality_op (pfile, lhs, rhs, op)
- cpp_reader *pfile ATTRIBUTE_UNUSED;
- cpp_num lhs, rhs;
- enum cpp_ttype op;
+num_equality_op (cpp_reader *pfile ATTRIBUTE_UNUSED,
+ cpp_num lhs, cpp_num rhs, enum cpp_ttype op)
{
/* Work around a 3.0.4 bug; see PR 6950. */
bool eq = num_eq (lhs, rhs);
/* Shift NUM, of width PRECISION, right by N bits. */
static cpp_num
-num_rshift (num, precision, n)
- cpp_num num;
- size_t precision, n;
+num_rshift (cpp_num num, size_t precision, size_t n)
{
cpp_num_part sign_mask;
/* Shift NUM, of width PRECISION, left by N bits. */
static cpp_num
-num_lshift (num, precision, n)
- cpp_num num;
- size_t precision, n;
+num_lshift (cpp_num num, size_t precision, size_t n)
{
if (n >= precision)
{
/* The four unary operators: +, -, ! and ~. */
static cpp_num
-num_unary_op (pfile, num, op)
- cpp_reader *pfile;
- cpp_num num;
- enum cpp_ttype op;
+num_unary_op (cpp_reader *pfile, cpp_num num, enum cpp_ttype op)
{
switch (op)
{
case CPP_UPLUS:
if (CPP_WTRADITIONAL (pfile) && !pfile->state.skip_eval)
- cpp_error (pfile, DL_WARNING,
+ cpp_error (pfile, CPP_DL_WARNING,
"traditional C rejects the unary plus operator");
num.overflow = false;
break;
/* The various binary operators. */
static cpp_num
-num_binary_op (pfile, lhs, rhs, op)
- cpp_reader *pfile;
- cpp_num lhs, rhs;
- enum cpp_ttype op;
+num_binary_op (cpp_reader *pfile, cpp_num lhs, cpp_num rhs, enum cpp_ttype op)
{
cpp_num result;
size_t precision = CPP_OPTION (pfile, precision);
/* Comma. */
default: /* case CPP_COMMA: */
if (CPP_PEDANTIC (pfile) && !pfile->state.skip_eval)
- cpp_error (pfile, DL_PEDWARN,
+ cpp_error (pfile, CPP_DL_PEDWARN,
"comma operator in operand of #if");
lhs = rhs;
break;
/* Multiplies two unsigned cpp_num_parts to give a cpp_num. This
cannot overflow. */
static cpp_num
-num_part_mul (lhs, rhs)
- cpp_num_part lhs, rhs;
+num_part_mul (cpp_num_part lhs, cpp_num_part rhs)
{
cpp_num result;
cpp_num_part middle[2], temp;
/* Multiply two preprocessing numbers. */
static cpp_num
-num_mul (pfile, lhs, rhs)
- cpp_reader *pfile;
- cpp_num lhs, rhs;
+num_mul (cpp_reader *pfile, cpp_num lhs, cpp_num rhs)
{
cpp_num result, temp;
bool unsignedp = lhs.unsignedp || rhs.unsignedp;
/* Divide two preprocessing numbers, returning the answer or the
remainder depending upon OP. */
static cpp_num
-num_div_op (pfile, lhs, rhs, op)
- cpp_reader *pfile;
- cpp_num lhs, rhs;
- enum cpp_ttype op;
+num_div_op (cpp_reader *pfile, cpp_num lhs, cpp_num rhs, enum cpp_ttype op)
{
cpp_num result, sub;
cpp_num_part mask;
else
{
if (!pfile->state.skip_eval)
- cpp_error (pfile, DL_ERROR, "division by zero in #if");
+ cpp_error (pfile, CPP_DL_ERROR, "division by zero in #if");
return lhs;
}
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