Oops. I learned that %< and %> do not get applied as part of the string
arguments, only the initial format string. So, updated patch:
-------------
diff --git a/.gitignore b/.gitignore
index b53f60db792..8988746a314 100644
--- a/.gitignore
+++ b/.gitignore
@@ -55,3 +55,6 @@ REVISION
/mpc*
/gmp*
/isl*
+
+# ignore some editor-specific files
+.vscode/*
\ No newline at end of file
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 711a31ea597..1c70f9d769f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -52,6 +52,12 @@
* gcc/config/or1k/predicates.md (volatile_mem_operand): New.
(reg_or_mem_operand): New.
+2019-07-22 ThePhD <phdoftheho...@gmail.com>
+
+ p1301
+ * escaped_string.h: New. Refactored out of tree.c to make more
+ broadly available (e.g. to parser.c, cvt.c).
+
2019-07-21 Iain Sandoe <i...@sandoe.co.uk>
* config/rs6000/rs6000.c (TARGET_NO_PROTOTYPE): Move from here...
diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index e6452542bcc..0c3bdbc2fd1 100644
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,3 +1,9 @@
+2019-07-22 ThePhD <phdoftheho...@gmail.com>
+
+ p1301
+ * c-family/c-lex.c: increase [[nodiscard]] feature macro
+ value (final value pending post-Cologne mailing)
+
2019-07-20 Jakub Jelinek <ja...@redhat.com>
* c-pragma.h (enum pragma_kind): Add PRAGMA_OMP_LOOP.
diff --git a/gcc/c-family/c-lex.c b/gcc/c-family/c-lex.c
index 851fd704e5d..f2c0b62c95b 100644
--- a/gcc/c-family/c-lex.c
+++ b/gcc/c-family/c-lex.c
@@ -353,13 +353,14 @@ c_common_has_attribute (cpp_reader *pfile)
else if (is_attribute_p ("deprecated", attr_name))
result = 201309;
else if (is_attribute_p ("maybe_unused", attr_name)
- || is_attribute_p ("nodiscard", attr_name)
|| is_attribute_p ("fallthrough", attr_name))
result = 201603;
else if (is_attribute_p ("no_unique_address", attr_name)
|| is_attribute_p ("likely", attr_name)
|| is_attribute_p ("unlikely", attr_name))
result = 201803;
+ else if (is_attribute_p ("nodiscard", attr_name))
+ result = 201907; /* placeholder until C++20 Post-Cologne Working Draft. */
if (result)
attr_name = NULL_TREE;
}
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index d645cdef147..b6aa7f543f6 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,14 @@
+2019-07-22 ThePhD <phdoftheho...@gmail.com>
+
+ p1301
+ * tree.c: Implement p1301 - nodiscard("should have a reason"))
+ Added C++2a nodiscard string message handling.
+ Increase nodiscard argument handling max_length from 0
+ to 1. (error C++2a gated)
+ * parser.c: add requirement that nodiscard only be seen
+ once in attribute-list (C++2a gated)
+ * cvt.c: add nodiscard message to output, if applicable
+
2019-07-20 Jason Merrill <ja...@redhat.com>
* cp-tree.h (ovl_iterator::using_p): A USING_DECL by itself was also
diff --git a/gcc/cp/cvt.c b/gcc/cp/cvt.c
index 23d2aabc483..d89b6bcf07a 100644
--- a/gcc/cp/cvt.c
+++ b/gcc/cp/cvt.c
@@ -35,6 +35,7 @@ along with GCC; see the file COPYING3. If not see
#include "convert.h"
#include "stringpool.h"
#include "attribs.h"
+#include "escaped_string.h"
static tree convert_to_pointer_force (tree, tree, tsubst_flags_t);
static tree build_type_conversion (tree, tree);
@@ -1029,26 +1030,40 @@ maybe_warn_nodiscard (tree expr, impl_conv_void
implicit)
if (implicit != ICV_CAST && fn
&& lookup_attribute ("nodiscard", DECL_ATTRIBUTES (fn)))
{
+ tree attr = DECL_ATTRIBUTES (fn);
+ escaped_string msg;
+ if (attr)
+ msg.escape (TREE_STRING_POINTER (TREE_VALUE (TREE_VALUE (attr))));
+ bool has_msg = static_cast<bool>(msg);
+ const char* pre_msg = (has_msg ? ": " : "");
+ const char* raw_msg = (has_msg ? (const char*)msg : "");
auto_diagnostic_group d;
if (warning_at (loc, OPT_Wunused_result,
- "ignoring return value of %qD, "
- "declared with attribute nodiscard", fn))
- inform (DECL_SOURCE_LOCATION (fn), "declared here");
+ "ignoring return value of %qD, "
+ "declared with attribute %<nodiscard%>%s%s", fn,
pre_msg, raw_msg))
+ inform (DECL_SOURCE_LOCATION (fn), "declared here");
}
else if (implicit != ICV_CAST
&& lookup_attribute ("nodiscard", TYPE_ATTRIBUTES (rettype)))
{
+ tree attr = TYPE_ATTRIBUTES (rettype);
+ escaped_string msg;
+ if (attr)
+ msg.escape (TREE_STRING_POINTER (TREE_VALUE (TREE_VALUE (attr))));
+ bool has_msg = static_cast<bool>(msg);
+ const char* pre_msg = (has_msg ? ": " : "");
+ const char* raw_msg = (has_msg ? (const char*)msg : "");
auto_diagnostic_group d;
if (warning_at (loc, OPT_Wunused_result,
- "ignoring returned value of type %qT, "
- "declared with attribute nodiscard", rettype))
- {
- if (fn)
- inform (DECL_SOURCE_LOCATION (fn),
- "in call to %qD, declared here", fn);
- inform (DECL_SOURCE_LOCATION (TYPE_NAME (rettype)),
- "%qT declared here", rettype);
- }
+ "ignoring returned value of type %qT, "
+ "declared with attribute %<nodiscard%>%s%s",
rettype, pre_msg, raw_msg))
+ {
+ if (fn)
+ inform (DECL_SOURCE_LOCATION (fn),
+ "in call to %qD, declared here", fn);
+ inform (DECL_SOURCE_LOCATION (TYPE_NAME (rettype)),
+ "%qT declared here", rettype);
+ }
}
else if (TREE_CODE (expr) == TARGET_EXPR
&& lookup_attribute ("warn_unused_result", TYPE_ATTRIBUTES (type)))
diff --git a/gcc/cp/parser.c b/gcc/cp/parser.c
index 5c379aaf58d..3ad2f3b8d09 100644
--- a/gcc/cp/parser.c
+++ b/gcc/cp/parser.c
@@ -26399,13 +26399,26 @@ cp_parser_check_std_attribute (tree attributes,
tree attribute)
{
tree name = get_attribute_name (attribute);
if (is_attribute_p ("noreturn", name)
- && lookup_attribute ("noreturn", attributes))
- error ("attribute %<noreturn%> can appear at most once "
- "in an attribute-list");
+ && lookup_attribute ("noreturn", attributes))
+ {
+ error ("attribute %<noreturn%> can appear at most once "
+ "in an attribute-list");
+ }
else if (is_attribute_p ("deprecated", name)
&& lookup_attribute ("deprecated", attributes))
- error ("attribute %<deprecated%> can appear at most once "
- "in an attribute-list");
+ {
+ error ("attribute %<deprecated%> can appear at most once "
+ "in an attribute-list");
+ }
+ else if (cxx_dialect >= cxx2a)
+ {
+ if (is_attribute_p ("nodiscard", name)
+ && lookup_attribute ("nodiscard", attributes))
+ {
+ error ("%qE attribute can appear at most once "
+ "in an attribute-list", name);
+ }
+ }
}
}
diff --git a/gcc/cp/tree.c b/gcc/cp/tree.c
index 37e24a1669c..f5474be8b03 100644
--- a/gcc/cp/tree.c
+++ b/gcc/cp/tree.c
@@ -4356,12 +4356,31 @@ zero_init_p (const_tree t)
warn_unused_result attribute. */
static tree
-handle_nodiscard_attribute (tree *node, tree name, tree /*args*/,
+handle_nodiscard_attribute (tree *node, tree name, tree args,
int /*flags*/, bool *no_add_attrs)
{
+ if (!args)
+ *no_add_attrs = true;
+ else if (cxx_dialect >= cxx2a)
+ {
+ if (TREE_CODE (TREE_VALUE (args)) != STRING_CST)
+ {
+ error ("%qE attribute argument must be a string constant", name);
+ *no_add_attrs = true;
+ }
+ }
+ else
+ {
+ if (!*no_add_attrs)
+ {
+ error ("%qE attribute with an argument only available with "
+ "%<-std=c++2a%> or %<-std=gnu++2a%>", name);
+ }
+ }
+
if (TREE_CODE (*node) == FUNCTION_DECL)
{
- if (VOID_TYPE_P (TREE_TYPE (TREE_TYPE (*node))))
+ if (VOID_TYPE_P (TREE_TYPE (TREE_TYPE (*node))) &&
DECL_CONSTRUCTOR_P(*node) == 0)
warning_at (DECL_SOURCE_LOCATION (*node),
OPT_Wattributes, "%qE attribute applied to %qD with void "
"return type", name, *node);
@@ -4447,7 +4466,7 @@ const struct attribute_spec std_attribute_table[] =
affects_type_identity, handler, exclude } */
{ "maybe_unused", 0, 0, false, false, false, false,
handle_unused_attribute, NULL },
- { "nodiscard", 0, 0, false, false, false, false,
+ { "nodiscard", 0, 1, false, false, false, false,
handle_nodiscard_attribute, NULL },
{ "no_unique_address", 0, 0, true, false, false, false,
handle_no_unique_addr_attribute, NULL },
diff --git a/gcc/escaped_string.h b/gcc/escaped_string.h
new file mode 100644
index 00000000000..ab0fbafc5fd
--- /dev/null
+++ b/gcc/escaped_string.h
@@ -0,0 +1,43 @@
+/* Shared escaped string class.
+ Copyright (C) 1999-2019 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#ifndef GCC_ESCAPED_STRING_H
+#define GCC_ESCAPED_STRING_H
+
+#include <cstdlib>
+
+/* A class to handle converting a string that might contain
+ control characters, (eg newline, form-feed, etc), into one
+ in which contains escape sequences instead. */
+
+class escaped_string
+{
+ public:
+ escaped_string () { m_owned = false; m_str = NULL; };
+ ~escaped_string () { if (m_owned) free (m_str); }
+ operator const char *() const { return (const char *) m_str; }
+ void escape (const char *);
+ private:
+ escaped_string(const escaped_string&) {}
+ escaped_string& operator=(const escaped_string&) { return *this; }
+ char *m_str;
+ bool m_owned;
+};
+
+#endif /* ! GCC_ESCAPED_STRING_H */
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 12774c06466..33882a6b968 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -20,6 +20,14 @@
* gcc.target/or1k/swap-1.c: New test.
* gcc.target/or1k/swap-2.c: New test.
+2019-07-22 ThePhD <phdoftheho...@gmail.com>
+
+ p1301 implementation
+ * g++.dg/cpp2a/nodiscard-once.C: New test.
+ * g++.dg/cpp2a/nodiscard-once-clause.C: Ditto.
+ * g++.dg/cpp2a/nodiscard-bad-clause.C: Ditto.
+ * g++.dg/cpp2a/nodiscard-reason.C: Ditto.
+
2019-07-20 Segher Boessenkool <seg...@kernel.crashing.org>
* gcc.target/powerpc/volatile-mem.c: New testcase.
diff --git a/gcc/testsuite/g++.dg/cpp2a/nodiscard-bad-clause.C
b/gcc/testsuite/g++.dg/cpp2a/nodiscard-bad-clause.C
new file mode 100644
index 00000000000..e2a95ef6625
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp2a/nodiscard-bad-clause.C
@@ -0,0 +1,12 @@
+/* nodiscard attribute tests */
+/* { dg-do compile { target c++2a } } */
+/* { dg-options "-O -ftrack-macro-expansion=0" } */
+
+[[nodiscard(123)]] int check1 (void); /* { dg-error "(?n)nodiscard.*must
be a string constant" } */
+
+void
+test (void)
+{
+ check1 (); /* { dg-warning "(?n)nodiscard" } */
+ (void) check1 ();
+}
diff --git a/gcc/testsuite/g++.dg/cpp2a/nodiscard-once-clause.C
b/gcc/testsuite/g++.dg/cpp2a/nodiscard-once-clause.C
new file mode 100644
index 00000000000..5d7cfafc2c8
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp2a/nodiscard-once-clause.C
@@ -0,0 +1,12 @@
+/* nodiscard attribute tests */
+/* { dg-do compile { target c++2a } } */
+/* { dg-options "-O -ftrack-macro-expansion=0" } */
+
+[[nodiscard("not", "allowed")]] int check1 (void); /* { dg-error
"(?n)wrong number of arguments..*nodiscard" } */
+
+void
+test (void)
+{
+ check1 (); /* { dg-warning "nodiscard" } */
+ (void) check1 ();
+}
diff --git a/gcc/testsuite/g++.dg/cpp2a/nodiscard-once.C
b/gcc/testsuite/g++.dg/cpp2a/nodiscard-once.C
new file mode 100644
index 00000000000..d88d5c9d8b1
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp2a/nodiscard-once.C
@@ -0,0 +1,12 @@
+/* nodiscard attribute tests */
+/* { dg-do compile { target c++2a } } */
+/* { dg-options "-O -ftrack-macro-expansion=0" } */
+
+[[nodiscard, nodiscard]] int check1 (void); /* { dg-error
"(?n)nodiscard.*can appear at most once" } */
+
+void
+test (void)
+{
+ check1 (); /* { dg-warning "nodiscard" } */
+ (void) check1 ();
+}
diff --git a/gcc/testsuite/g++.dg/cpp2a/nodiscard-reason.C
b/gcc/testsuite/g++.dg/cpp2a/nodiscard-reason.C
new file mode 100644
index 00000000000..3617365b2b0
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp2a/nodiscard-reason.C
@@ -0,0 +1,203 @@
+/* nodiscard attribute tests, adapted from
gcc.dg/attr-warn-unused-result.c. */
+/* { dg-do compile { target c++2a } } */
+/* { dg-options "-O -ftrack-macro-expansion=0" } */
+
+#define NODIS [[nodiscard("exact_message")]]
+#define NODISAI [[nodiscard("exact_inline_message"), gnu::always_inline]]
inline
+enum [[nodiscard("exact_E_message")]] E { e };
+typedef E (*fnt) (void);
+
+typedef struct { long i; } A;
+typedef struct { long i; long j; } B;
+typedef struct { char big[1024]; fnt fn; } C;
+struct [[nodiscard("exact_D_message")]] D { int i; D(); ~D(); };
+
+NODIS E check1 (void);
+NODIS void check2 (void); /* { dg-warning
"(?n)10:.nodiscard.*exact_message" } */
+NODIS int foo; /* { dg-warning "(?n)9:.nodiscard.*exact_message" } */
+int bar (void);
+NODISAI E check3 (void) { return (E)bar (); }
+NODIS A check4 (void);
+NODIS B check5 (void);
+NODIS C check6 (void);
+A bar7 (void);
+B bar8 (void);
+C bar9 (void);
+NODISAI A check7 (void) { return bar7 (); }
+NODISAI B check8 (void) { return bar8 (); }
+NODISAI C check9 (void) { return bar9 (); }
+/* This is useful for checking whether return value of statement
+ expressions (returning int in this case) is used. */
+NODISAI int check_int_result (int res) { return res; }
+#define GU(v) ({ int e = 0; (v) = bar (); if ((v) < 23) e = 14; e; })
+fnt fnptr;
+NODIS E check10 (void);
+int baz (void);
+NODISAI E check11 (void) { return (E)baz (); }
+int k;
+
+D check12();
+
+void
+test (void)
+{
+ int i = 0, j;
+ const fnt pcheck1 = check1;
+ const fnt pcheck3 = check3;
+ A a;
+ B b;
+ C c;
+ D d;
+ if (check1 ())
+ return;
+ i += check1 ();
+ i += ({ check1 (); });
+ check1 (); /* { dg-warning "(?n)nodiscard.*exact_message" } */
+ (void) check1 ();
+ check1 (), bar (); /* { dg-warning "(?n)nodiscard.*exact_message" } */
+ check2 ();
+ (void) check2 ();
+ check2 (), bar ();
+ if (check3 ())
+ return;
+ i += check3 ();
+ i += ({ check3 (); });
+ check3 (); /* { dg-warning "(?n)nodiscard.*exact_inline_message" } */
+ (void) check3 ();
+ check3 (), bar (); /* { dg-warning "(?n)nodiscard.*exact_inline_message"
} */
+ a = check4 ();
+ if (a.i)
+ return;
+ if (check4 ().i)
+ return;
+ if (({ check4 (); }).i)
+ return;
+ check4 (); /* { dg-warning "(?n)nodiscard.*exact_message" } */
+ (void) check4 ();
+ check4 (), bar (); /* { dg-warning "(?n)nodiscard.*exact_message" } */
+ b = check5 ();
+ if (b.i + b.j)
+ return;
+ if (check5 ().j)
+ return;
+ if (({ check5 (); }).j)
+ return;
+ check5 (); /* { dg-warning "(?n)nodiscard.*exact_message" } */
+ (void) check5 ();
+ check5 (), bar (); /* { dg-warning "(?n)nodiscard.*exact_message" } */
+ c = check6 ();
+ if (c.big[12] + c.big[29])
+ return;
+ if (check6 ().big[27])
+ return;
+ if (({ check6 (); }).big[0])
+ return;
+ check6 (); /* { dg-warning "(?n)nodiscard.*exact_message" } */
+ (void) check6 ();
+ check6 (), bar (); /* { dg-warning "(?n)nodiscard.*exact_message" } */
+ a = check7 ();
+ if (a.i)
+ return;
+ if (check7 ().i)
+ return;
+ if (({ check7 (); }).i)
+ return;
+ check7 (); /* { dg-warning "(?n)nodiscard.*exact_inline_message" } */
+ (void) check7 ();
+ check7 (), bar (); /* { dg-warning "(?n)nodiscard.*exact_inline_message"
} */
+ b = check8 ();
+ if (b.i + b.j)
+ return;
+ if (check8 ().j)
+ return;
+ if (({ check8 (); }).j)
+ return;
+ check8 (); /* { dg-warning "(?n)nodiscard.*exact_inline_message" } */
+ (void) check8 ();
+ check8 (), bar (); /* { dg-warning "(?n)nodiscard.*exact_inline_message"
} */
+ c = check9 ();
+ if (c.big[12] + c.big[29])
+ return;
+ if (check9 ().big[27])
+ return;
+ if (({ check9 (); }).big[0])
+ return;
+ check9 (); /* { dg-warning "(?n)nodiscard.*exact_inline_message" } */
+ (void) check9 ();
+ check9 (), bar (); /* { dg-warning "(?n)nodiscard.*exact_inline_message"
} */
+ if (check_int_result (GU (j)))
+ return;
+ i += check_int_result (GU (j));
+ i += ({ check_int_result (GU (j)); });
+ check_int_result (GU (j)); /* { dg-warning
"(?n)nodiscard.*exact_inline_message" } */
+ (void) check_int_result (GU (j));
+ check_int_result (GU (j)), bar (); /* { dg-warning
"(?n)nodiscard.*exact_inline_message" } */
+ if (fnptr ())
+ return;
+ i += fnptr ();
+ i += ({ fnptr (); });
+ fnptr (); /* { dg-warning "(?n)nodiscard.*exact_E_message" } */
+ (void) fnptr ();
+ fnptr (), bar (); /* { dg-warning "(?n)nodiscard.*exact_E_message" } */
+ fnptr = check1;
+ if (fnptr ())
+ return;
+ i += fnptr ();
+ i += ({ fnptr (); });
+ fnptr (); /* { dg-warning "(?n)nodiscard.*exact_E_message" } */
+ (void) fnptr ();
+ fnptr (), bar (); /* { dg-warning "(?n)nodiscard.*exact_E_message" } */
+ fnptr = check3;
+ if (fnptr ())
+ return;
+ i += fnptr ();
+ i += ({ fnptr (); });
+ fnptr (); /* { dg-warning "(?n)nodiscard.*exact_E_message" } */
+ (void) fnptr ();
+ fnptr (), bar (); /* { dg-warning "(?n)nodiscard.*exact_E_message" } */
+ if (bar9 ().fn ())
+ return;
+ i += bar9 ().fn ();
+ i += ({ bar9 ().fn (); });
+ bar9 ().fn (); /* { dg-warning "(?n)nodiscard.*exact_E_message" } */
+ (void) bar9 ().fn ();
+ bar9 ().fn (), bar (); /* { dg-warning "(?n)nodiscard.*exact_E_message"
} */
+ if ((k ? check1 : check10) ())
+ return;
+ i += (k ? check1 : check10) ();
+ i += ({ (k ? check1 : check10) (); });
+ (k ? check1 : check10) (); /* { dg-warning
"(?n)nodiscard.*exact_E_message" } */
+ (void) (k ? check1 : check10) ();
+ (k ? check1 : check10) (), bar (); /* { dg-warning
"(?n)nodiscard.*exact_E_message" } */
+ if ((k ? check3 : check11) ())
+ return;
+ i += (k ? check3 : check11) ();
+ i += ({ (k ? check3 : check11) (); });
+ (k ? check3 : check11) (); /* { dg-warning
"(?n)nodiscard.*exact_inline_message" } */
+ (void) (k ? check3 : check11) ();
+ (k ? check3 : check11) (), bar (); /* { dg-warning
"(?n)nodiscard.*exact_inline_message" } */
+ if (pcheck1 ())
+ return;
+ i += pcheck1 ();
+ i += ({ pcheck1 (); });
+ pcheck1 (); /* { dg-warning "(?n)nodiscard.*exact_E_message" } */
+ (void) pcheck1 ();
+ pcheck1 (), bar (); /* { dg-warning "(?n)nodiscard.*exact_E_message" } */
+ if (pcheck3 ())
+ return;
+ i += pcheck3 ();
+ i += ({ pcheck3 (); });
+ pcheck3 (); /* { dg-warning "(?n)nodiscard.*exact_E_message" } */
+ (void) pcheck3 ();
+ pcheck3 (), bar (); /* { dg-warning "(?n)nodiscard.*exact_E_message" } */
+ d = check12 ();
+ if (d.i)
+ return;
+ if (check12 ().i)
+ return;
+ if (({ check12 (); }).i)
+ return;
+ check12 (); /* { dg-warning "(?n)nodiscard.*exact_D_message" } */
+ (void) check12 ();
+ check12 (), bar (); /* { dg-warning "(?n)nodiscard.*exact_D_message" } */
+}
diff --git a/gcc/tree.c b/gcc/tree.c
index 8cf75f22220..362e07d1c33 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -33,6 +33,7 @@ along with GCC; see the file COPYING3. If not see
#include "backend.h"
#include "target.h"
#include "tree.h"
+#include "escaped_string.h"
#include "gimple.h"
#include "tree-pass.h"
#include "ssa.h"
@@ -13132,22 +13133,6 @@ typedef_variant_p (const_tree type)
return is_typedef_decl (TYPE_NAME (type));
}
-/* A class to handle converting a string that might contain
- control characters, (eg newline, form-feed, etc), into one
- in which contains escape sequences instead. */
-
-class escaped_string
-{
- public:
- escaped_string () { m_owned = false; m_str = NULL; };
- ~escaped_string () { if (m_owned) free (m_str); }
- operator const char *() const { return (const char *) m_str; }
- void escape (const char *);
- private:
- char *m_str;
- bool m_owned;
-};
-
/* PR 84195: Replace control characters in "unescaped" with their
escaped equivalents. Allow newlines if -fmessage-length has
been set to a non-zero value. This is done here, rather than
