#include "flags.h"
#include "obstack.h"
#include "toplev.h"
+#include "output.h"
+
+#if USE_CPPLIB
+#include "cpplib.h"
+cpp_reader parse_in;
+cpp_options parse_options;
+static enum cpp_token cpp_token;
+#endif
#ifndef WCHAR_TYPE_SIZE
#ifdef INT_TYPE_SIZE
int pointer_count;
/* Type of argument if no length modifier is used. */
tree *nolen;
- /* Type of argument if length modifier for shortening is used.
+ /* Type of argument if length modifier for shortening to byte is used.
If NULL, then this modifier is not allowed. */
tree *hhlen;
- /* Type of argument if length modifier for shortening to byte if used.
+ /* Type of argument if length modifier for shortening is used.
If NULL, then this modifier is not allowed. */
tree *hlen;
/* Type of argument if length modifier `l' is used.
int length_char;
int format_char;
int format_length;
- int integral_format;
tree format_tree;
tree cur_param;
tree cur_type;
if (pedantic)
warning ("ANSI C does not support the `ll' length modifier");
}
+ else if (length_char == 'h' && *format_chars == 'h')
+ {
+ length_char = 'H', format_chars++;
+ /* FIXME: Is allowed in ISO C 9x. */
+ if (pedantic)
+ warning ("ANSI C does not support the `hh' length modifier");
+ }
if (*format_chars == 'a' && info->format_type == scanf_format_type)
{
if (format_chars[1] == 's' || format_chars[1] == 'S'
warning ("use of `%c' length character with `%c' type character",
length_char, format_char);
- /*
- ** XXX -- should kvetch about stuff such as
- ** {
- ** const int i;
- **
- ** scanf ("%d", &i);
- ** }
- */
-
/* Finally. . .check type of argument against desired type! */
if (info->first_arg_num == 0)
continue;
}
/* See if this is an attempt to write into a const type with
- scanf. */
- if (info->format_type == scanf_format_type
+ scanf or with printf "%n". */
+ if ((info->format_type == scanf_format_type
+ || (info->format_type == printf_format_type
+ && format_char == 'n'))
&& i == fci->pointer_count + aflag
&& wanted_type != 0
&& TREE_CODE (cur_type) != ERROR_MARK
return build_binary_op (NE_EXPR, expr, integer_zero_node, 1);
}
\f
+#if USE_CPPLIB
+/* Read the rest of a #-directive from input stream FINPUT.
+ In normal use, the directive name and the white space after it
+ have already been read, so they won't be included in the result.
+ We allow for the fact that the directive line may contain
+ a newline embedded within a character or string literal which forms
+ a part of the directive.
+
+ The value is a string in a reusable buffer. It remains valid
+ only until the next time this function is called. */
+unsigned char *yy_cur, *yy_lim;
+
+#define GETC() (yy_cur < yy_lim ? *yy_cur++ : yy_get_token ())
+#define UNGETC(c) ((c), yy_cur--)
+
+int
+yy_get_token ()
+{
+ for (;;)
+ {
+ parse_in.limit = parse_in.token_buffer;
+ cpp_token = cpp_get_token (&parse_in);
+ if (cpp_token == CPP_EOF)
+ return -1;
+ yy_lim = CPP_PWRITTEN (&parse_in);
+ yy_cur = parse_in.token_buffer;
+ if (yy_cur < yy_lim)
+ return *yy_cur++;
+ }
+}
+
+char *
+get_directive_line ()
+{
+ static char *directive_buffer = NULL;
+ static unsigned buffer_length = 0;
+ register char *p;
+ register char *buffer_limit;
+ register int looking_for = 0;
+ register int char_escaped = 0;
+
+ if (buffer_length == 0)
+ {
+ directive_buffer = (char *)xmalloc (128);
+ buffer_length = 128;
+ }
+
+ buffer_limit = &directive_buffer[buffer_length];
+
+ for (p = directive_buffer; ; )
+ {
+ int c;
+
+ /* Make buffer bigger if it is full. */
+ if (p >= buffer_limit)
+ {
+ register unsigned bytes_used = (p - directive_buffer);
+
+ buffer_length *= 2;
+ directive_buffer
+ = (char *)xrealloc (directive_buffer, buffer_length);
+ p = &directive_buffer[bytes_used];
+ buffer_limit = &directive_buffer[buffer_length];
+ }
+
+ c = GETC ();
+
+ /* Discard initial whitespace. */
+ if ((c == ' ' || c == '\t') && p == directive_buffer)
+ continue;
+
+ /* Detect the end of the directive. */
+ if (c == '\n' && looking_for == 0)
+ {
+ UNGETC (c);
+ c = '\0';
+ }
+
+ *p++ = c;
+
+ if (c == 0)
+ return directive_buffer;
+
+ /* Handle string and character constant syntax. */
+ if (looking_for)
+ {
+ if (looking_for == c && !char_escaped)
+ looking_for = 0; /* Found terminator... stop looking. */
+ }
+ else
+ if (c == '\'' || c == '"')
+ looking_for = c; /* Don't stop buffering until we see another
+ another one of these (or an EOF). */
+
+ /* Handle backslash. */
+ char_escaped = (c == '\\' && ! char_escaped);
+ }
+}
+#else
/* Read the rest of a #-directive from input stream FINPUT.
In normal use, the directive name and the white space after it
have already been read, so they won't be included in the result.
else
if (c == '\'' || c == '"')
looking_for = c; /* Don't stop buffering until we see another
- another one of these (or an EOF). */
+ one of these (or an EOF). */
/* Handle backslash. */
char_escaped = (c == '\\' && ! char_escaped);
}
}
+#endif /* !USE_CPPLIB */
\f
/* Make a variant type in the proper way for C/C++, propagating qualifiers
down to the element type of an array. */
OSDN Git Service
