static void builtin_define_with_int_value (const char *, HOST_WIDE_INT);
static void builtin_define_with_hex_fp_value (const char *, tree,
int, const char *,
+ const char *,
const char *);
static void builtin_define_stdint_macros (void);
static void builtin_define_type_max (const char *, tree, int);
static void builtin_define_type_precision (const char *, tree);
-static void builtin_define_float_constants (const char *, const char *,
+static void builtin_define_float_constants (const char *,
+ const char *,
+ const char *,
tree);
static void define__GNUC__ (void);
builtin_define_with_int_value (name, TYPE_PRECISION (type));
}
-/* Define the float.h constants for TYPE using NAME_PREFIX and FP_SUFFIX. */
+/* Define the float.h constants for TYPE using NAME_PREFIX, FP_SUFFIX,
+ and FP_CAST. */
static void
-builtin_define_float_constants (const char *name_prefix, const char *fp_suffix, tree type)
+builtin_define_float_constants (const char *name_prefix,
+ const char *fp_suffix,
+ const char *fp_cast,
+ tree type)
{
/* Used to convert radix-based values to base 10 values in several cases.
int decimal_dig;
fmt = REAL_MODE_FORMAT (TYPE_MODE (type));
+ gcc_assert (fmt->b != 10);
/* The radix of the exponent representation. */
if (type == float_type_node)
}
}
sprintf (name, "__%s_MAX__", name_prefix);
- builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix);
+ builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix, fp_cast);
/* The minimum normalized positive floating-point number,
b**(emin-1). */
sprintf (name, "__%s_MIN__", name_prefix);
sprintf (buf, "0x1p%d", (fmt->emin - 1) * fmt->log2_b);
- builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix);
+ builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix, fp_cast);
/* The difference between 1 and the least value greater than 1 that is
representable in the given floating point type, b**(1-p). */
sprintf (buf, "0x1p%d", (fmt->emin - fmt->p) * fmt->log2_b);
else
sprintf (buf, "0x1p%d", (1 - fmt->p) * fmt->log2_b);
- builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix);
+ builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix, fp_cast);
/* For C++ std::numeric_limits<T>::denorm_min. The minimum denormalized
positive floating-point number, b**(emin-p). Zero for formats that
{
sprintf (buf, "0x1p%d", (fmt->emin - fmt->p) * fmt->log2_b);
builtin_define_with_hex_fp_value (name, type, decimal_dig,
- buf, fp_suffix);
+ buf, fp_suffix, fp_cast);
}
else
{
builtin_define_with_value (name, buf, 0);
}
+ sprintf (name, "__%s_HAS_DENORM__", name_prefix);
+ builtin_define_with_value (name, fmt->has_denorm ? "1" : "0", 0);
+
/* For C++ std::numeric_limits<T>::has_infinity. */
sprintf (name, "__%s_HAS_INFINITY__", name_prefix);
builtin_define_with_int_value (name,
builtin_define_with_int_value (name, MODE_HAS_NANS (TYPE_MODE (type)));
}
+/* Define __DECx__ constants for TYPE using NAME_PREFIX and SUFFIX. */
+static void
+builtin_define_decimal_float_constants (const char *name_prefix,
+ const char *suffix,
+ tree type)
+{
+ const struct real_format *fmt;
+ char name[64], buf[128], *p;
+ int digits;
+
+ fmt = REAL_MODE_FORMAT (TYPE_MODE (type));
+
+ /* The number of radix digits, p, in the significand. */
+ sprintf (name, "__%s_MANT_DIG__", name_prefix);
+ builtin_define_with_int_value (name, fmt->p);
+
+ /* The minimum negative int x such that b**(x-1) is a normalized float. */
+ sprintf (name, "__%s_MIN_EXP__", name_prefix);
+ sprintf (buf, "(%d)", fmt->emin);
+ builtin_define_with_value (name, buf, 0);
+
+ /* The maximum int x such that b**(x-1) is a representable float. */
+ sprintf (name, "__%s_MAX_EXP__", name_prefix);
+ builtin_define_with_int_value (name, fmt->emax);
+
+ /* Compute the minimum representable value. */
+ sprintf (name, "__%s_MIN__", name_prefix);
+ sprintf (buf, "1E%d%s", fmt->emin, suffix);
+ builtin_define_with_value (name, buf, 0);
+
+ /* Compute the maximum representable value. */
+ sprintf (name, "__%s_MAX__", name_prefix);
+ p = buf;
+ for (digits = fmt->p; digits; digits--)
+ {
+ *p++ = '9';
+ if (digits == fmt->p)
+ *p++ = '.';
+ }
+ *p = 0;
+ /* fmt->p plus 1, to account for the decimal point. */
+ sprintf (&buf[fmt->p + 1], "E%d%s", fmt->emax, suffix);
+ builtin_define_with_value (name, buf, 0);
+
+ /* Compute epsilon (the difference between 1 and least value greater
+ than 1 representable). */
+ sprintf (name, "__%s_EPSILON__", name_prefix);
+ sprintf (buf, "1E-%d%s", fmt->p - 1, suffix);
+ builtin_define_with_value (name, buf, 0);
+
+ /* Minimum denormalized postive decimal value. */
+ sprintf (name, "__%s_DEN__", name_prefix);
+ p = buf;
+ for (digits = fmt->p; digits > 1; digits--)
+ {
+ *p++ = '0';
+ if (digits == fmt->p)
+ *p++ = '.';
+ }
+ *p = 0;
+ sprintf (&buf[fmt->p], "1E%d%s", fmt->emin, suffix);
+ builtin_define_with_value (name, buf, 0);
+}
+
/* Define __GNUC__, __GNUC_MINOR__ and __GNUC_PATCHLEVEL__. */
static void
define__GNUC__ (void)
builtin_define_with_int_value ("__FLT_EVAL_METHOD__",
TARGET_FLT_EVAL_METHOD);
- builtin_define_float_constants ("FLT", "F", float_type_node);
- builtin_define_float_constants ("DBL", "", double_type_node);
- builtin_define_float_constants ("LDBL", "L", long_double_type_node);
+ /* And decfloat.h needs this. */
+ builtin_define_with_int_value ("__DEC_EVAL_METHOD__",
+ TARGET_DEC_EVAL_METHOD);
+
+ builtin_define_float_constants ("FLT", "F", "%s", float_type_node);
+ /* Cast the double precision constants when single precision constants are
+ specified. The correct result is computed by the compiler when using
+ macros that include a cast. This has the side-effect of making the value
+ unusable in const expressions. */
+ if (flag_single_precision_constant)
+ builtin_define_float_constants ("DBL", "L", "((double)%s)", double_type_node);
+ else
+ builtin_define_float_constants ("DBL", "", "%s", double_type_node);
+ builtin_define_float_constants ("LDBL", "L", "%s", long_double_type_node);
+
+ /* For decfloat.h. */
+ builtin_define_decimal_float_constants ("DEC32", "DF", dfloat32_type_node);
+ builtin_define_decimal_float_constants ("DEC64", "DD", dfloat64_type_node);
+ builtin_define_decimal_float_constants ("DEC128", "DL", dfloat128_type_node);
/* For use in assembly language. */
builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0);
else if (flag_stack_protect == 1)
cpp_define (pfile, "__SSP__=1");
+ if (flag_openmp)
+ cpp_define (pfile, "_OPENMP=200505");
+
/* A straightforward target hook doesn't work, because of problems
linking that hook's body when part of non-C front ends. */
# define preprocessing_asm_p() (cpp_get_options (pfile)->lang == CLK_ASM)
builtin_define_std (const char *macro)
{
size_t len = strlen (macro);
- char *buff = alloca (len + 5);
+ char *buff = (char *) alloca (len + 5);
char *p = buff + 2;
char *q = p + len;
if (is_str)
extra += 2; /* space for two quote marks */
- buf = alloca (mlen + elen + extra);
+ buf = (char *) alloca (mlen + elen + extra);
if (is_str)
sprintf (buf, "%s=\"%s\"", macro, expansion);
else
size_t mlen = strlen (macro);
/* Space for an = and a NUL. */
- buf = alloca (mlen + elen + 2);
+ buf = (char *) alloca (mlen + elen + 2);
memcpy (buf, macro, mlen);
buf[mlen] = '=';
memcpy (buf + mlen + 1, expansion, elen);
size_t vlen = 18;
size_t extra = 2; /* space for = and NUL. */
- buf = alloca (mlen + vlen + extra);
+ buf = (char *) alloca (mlen + vlen + extra);
memcpy (buf, macro, mlen);
buf[mlen] = '=';
sprintf (buf + mlen + 1, HOST_WIDE_INT_PRINT_DEC, value);
static void
builtin_define_with_hex_fp_value (const char *macro,
tree type ATTRIBUTE_UNUSED, int digits,
- const char *hex_str, const char *fp_suffix)
+ const char *hex_str,
+ const char *fp_suffix,
+ const char *fp_cast)
{
REAL_VALUE_TYPE real;
- char dec_str[64], buf[256];
+ char dec_str[64], buf1[256], buf2[256];
/* Hex values are really cool and convenient, except that they're
not supported in strict ISO C90 mode. First, the "p-" sequence
real_from_string (&real, hex_str);
real_to_decimal (dec_str, &real, sizeof (dec_str), digits, 0);
- sprintf (buf, "%s=%s%s", macro, dec_str, fp_suffix);
- cpp_define (parse_in, buf);
+ /* Assemble the macro in the following fashion
+ macro = fp_cast [dec_str fp_suffix] */
+ sprintf (buf1, "%s%s", dec_str, fp_suffix);
+ sprintf (buf2, fp_cast, buf1);
+ sprintf (buf1, "%s=%s", macro, buf2);
+
+ cpp_define (parse_in, buf1);
}
/* Define MAX for TYPE based on the precision of the type. IS_LONG is
value = values[idx + TYPE_UNSIGNED (type)];
suffix = suffixes[is_long * 2 + TYPE_UNSIGNED (type)];
- buf = alloca (strlen (macro) + 1 + strlen (value) + strlen (suffix) + 1);
+ buf = (char *) alloca (strlen (macro) + 1 + strlen (value)
+ + strlen (suffix) + 1);
sprintf (buf, "%s=%s%s", macro, value, suffix);
cpp_define (parse_in, buf);
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