# cat x.cpp #include <string> const std::string str[ 1 ] = { "a" }; const std::wstring wstr[ 1 ] = { L"a" }; # c++ -Wall -c x.cpp x.cpp:3: warning: statement has no effect x.cpp:4: warning: statement has no effect Should be self-explanatory.
I could not reproduce it on the mainline (20030814)? Can you provide the output of gcc -v?
someting with my 11512 fix
Subject: Re: wrong "warning: statement has no effect" pinskia at gcc dot gnu dot org schrieb: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11957 > ------- Additional Comments From pinskia at gcc dot gnu > dot org 2003-08-17 19:21 ------- > I could not reproduce it on the mainline (20030814)? > Can you provide the output of gcc -v? Sure. I'm using today's snapshot: gcc version 3.4 20030817 (experimental) Michael
Subject: Bug 11957 CVSROOT: /cvs/gcc Module name: gcc Changes by: nathan@gcc.gnu.org 2003-08-18 12:55:04 Modified files: gcc/cp : ChangeLog cp-tree.h init.c parser.c pt.c semantics.c Log message: cp: PR c++/11957 * cp-tree.h (finish_stmt_expr): Add bool parameter. * init.c (finish_init_stmts): Pass true to finish_stmt_expr. Don't adjust the stmt_expr here. (build_vec_init): Use finish_stmt_expr_expr, convert result to array type. * parser.c (cp_parser_primar_expression): Adjust finish_stmt_expr call. * pt.c (tsubst_copy): Likewise. * semantics.c (finish_stmt_expr): Add parameter. testsuite: PR c++/11957 * g++.dg/warn/noeffect1.C: New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.3606&r2=1.3607 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/cp-tree.h.diff?cvsroot=gcc&r1=1.902&r2=1.903 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/init.c.diff?cvsroot=gcc&r1=1.338&r2=1.339 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/parser.c.diff?cvsroot=gcc&r1=1.100&r2=1.101 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/pt.c.diff?cvsroot=gcc&r1=1.759&r2=1.760 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/semantics.c.diff?cvsroot=gcc&r1=1.347&r2=1.348
2003-08-18 Nathan Sidwell <nathan@codesourcery.com> PR c++/11957 * cp-tree.h (finish_stmt_expr): Add bool parameter. * init.c (finish_init_stmts): Pass true to finish_stmt_expr. Don't adjust the stmt_expr here. (build_vec_init): Use finish_stmt_expr_expr, convert result to array type. * parser.c (cp_parser_primar_expression): Adjust finish_stmt_expr call. * pt.c (tsubst_copy): Likewise. * semantics.c (finish_stmt_expr): Add parameter.
*** Bug 11964 has been marked as a duplicate of this bug. ***
Subject: Bug 11957 CVSROOT: /cvs/gcc Module name: gcc Changes by: bryce@gcc.gnu.org 2005-02-22 03:13:35 Modified files: libjava : ChangeLog libjava/gcj : method.h libjava/java/io: ObjectInputStream.java ObjectStreamField.java VMObjectStreamClass.java natObjectInputStream.cc natVMObjectStreamClass.cc ObjectOutputStream.java libjava/java/lang/reflect: Field.java natField.cc Log message: 2005-02-21 Bryce McKinlay <mckinlay@redhat.com> Merge serialization from GNU Classpath. * gcj/method.h: Add missing #includes. * java/io/ObjectInputStream.java (readClassDescriptor): Check for primitive class IDs on the stream here... (resolveClass): ...not here. * java/io/ObjectStreamField.java: Use VMObjectStream class calls to set fields. * java/io/VMObjectStreamClass.java (setDoubleNative, setFloatNative, setLongNative, setIntNative, setShortNative, setCharNative, setByteNative, setBooleanNative, setObjectNative): New native methods. * java/io/natVMObjectStreamClass.java (setDoubleNative, setFloatNative, setLongNative, setIntNative, setShortNative, setCharNative, setByteNative, setBooleanNative, setObjectNative): Implement them. * java/io/natObjectInputStream.cc (allocateObject): Add new parameters from Classpath's version. Use _Jv_FromReflectedConstructor(). Call the constructor here. (callConstructor): Removed. (getCallersClassLoader): Removed. * java/lang/reflect/Field.java (setByte, setShort, setInt, setLong, setFloat, setDouble, setChar, setBoolean): Add 'checkFinal' parameter to control whether setting final field values is permitted. Call getAddr() with checkFinal parameter instead of setAddr(). * java/lang/reflect/natField.cc (getType): Lookup and resolve field only if not done already. (getAddr): Add checkFinal parameter. Do the final field check only if checkFinal is set. (setAddr): Removed. 2005-02-21 Mark Wielaard <mark@klomp.org> # Fixes bug #11957 * java/io/ObjectInputStream.java (resolveClass): Don't check "void" twice. 2005-02-21 Mark Wielaard <mark@klomp.org> Fixes bug #11618. * java/io/ObjectInputStream.java (readClassDescriptor): Handle classes without a super class and us ObjectStreamClass.lookupForClassObject(). (resolveClass): Check for primitive types. (lookupClass): Return null when argument is null. 2005-02-21 Jeroen Frijters <jeroen@frijters.net> * java/io/ObjectInputStream.java (readObject): Fix to consume TC_ENDBLOCKDATA after readExternal. 2005-02-21 Jeroen Frijters <jeroen@frijters.net> * java/io/ObjectOutputStream.java (writeObject, callWriteMethod): Replaced reflection with accessing cached info in ObjectStreamClass. (getMethod): Removed. * java/io/ObjectStreamClass.java (findMethod): Added check to make sure the method found has the right modifiers. (cacheMethods): Added writeReplace and writeObject methods. (setFlags): Look at new writeObjectMethod field instead of doing reflection again. (writeReplaceMethod): New field. (writeObjectMethod): New field. 2005-02-21 Guilhem Lavaux <guilhem@kaffe.org> Jeroen Frijters <jeroen@frijters.net> * java/io/ObjectInputStream.java (newObject): Changed prototype. Get a constructor reflect object directly. (callConstructor): Removed. (allocateObject): Changed prototype. (readClassDescriptor): Build the constructor reflection directly. (readObject): Invoke newObject using the new prototype. * java/io/ObjectStreamClass.java (firstNonSerializableParent): Removed. (firstNonSerializableParentConstructor): Added. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/ChangeLog.diff?cvsroot=gcc&r1=1.3371&r2=1.3372 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/gcj/method.h.diff?cvsroot=gcc&r1=1.6&r2=1.7 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/java/io/ObjectInputStream.java.diff?cvsroot=gcc&r1=1.40&r2=1.41 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/java/io/ObjectStreamField.java.diff?cvsroot=gcc&r1=1.12&r2=1.13 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/java/io/VMObjectStreamClass.java.diff?cvsroot=gcc&r1=1.1&r2=1.2 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/java/io/natObjectInputStream.cc.diff?cvsroot=gcc&r1=1.8&r2=1.9 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/java/io/natVMObjectStreamClass.cc.diff?cvsroot=gcc&r1=1.1&r2=1.2 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/java/io/ObjectOutputStream.java.diff?cvsroot=gcc&r1=1.31&r2=1.32 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/java/lang/reflect/Field.java.diff?cvsroot=gcc&r1=1.9&r2=1.10 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/java/lang/reflect/natField.cc.diff?cvsroot=gcc&r1=1.16&r2=1.17