Subject: gcj/gdb problem -- can't find source file -
msg#00101

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problems compiling GCJ 3.2.3 on PC Cygwin; error with prims.cc

I am having problems compiling GCJ for PC Cygwin. The prims.cc file is the culprit. I see a lot of comments in various mailing lists and forums, concerning the prims.cc file, but none have lead me a solution. I am including the configure flags used and the resulting make listing below, which leads up to the problem in question. Thanks in advance for any/all assistance. -John Vrab Platform specifics are as follows: Compaq DeskPro, 1GHz, 256MB RAM, WIndows 2000 SP3.

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hash_map error: passing `const lambda_calculus::int_adr' as `this' argument of `const size_t lambda_calculus::int_adr::operator ()(const lambda_calculus::Port *)' discards qualifiers passing `const lambda_calculus::int_adr' as `this' argument of `const size_t lambda_calculus::int_adr::operator ()(const lambda_calculus::Port *)' discards qualifiers

Have you ever seen this error?, it means that I pass a pointer to a constant object out of it's protected context. Yes I cast it down to a normal pointer indeed. The pointer is actually casted to an integer. I'm keeping a hash of memory adresses with the adresses of kopies of the objects these adresses refer too. So I do not alter this const pointer. Here is the code: //hash function object for the Mem_hash class int_adr {public: const size_t operator()(const Port* const a) { int i; /*haha, fooled ya*/ here is the fooling part that actually works on other compilers const Port * const s= a;//(Port *)a; i=(int)s; return i; } }; //hash of memory adresses typedef std::hash_map< const Port *, Port *, int_adr , equal_to <const Port * > > Mem_hash; all these const identifiers are required by hash_map, the non-standard gnu stl-extension. I don't wnat to change code that works with other compilers I need some compiler option or something to disable the error. error mess: gcc -g -c -I/sw/pkg/gcc-2.95.2/include/g++-3 -I./loki main.cpp stl_hashtable.h: In method `size_t hashtable<pair<const lambda_calculus::Port *const,lambda_calculus::Port *>,const lambda_calculus::Port *,lambda_calculus::int_adr,_Select1st<pair<const lambda_calculus::Port *const,lambda_calculus::Port *> >,equal_to<const lambda_calculus::Port *>,allocator<lambda_calculus::Port *> >::_M_bkt_num_key(const lambda_calculus::Port *const &, unsigned int) const': stl_hashtable.h:536: instantiated from `hashtable<pair<const lambda_calculus::Port *const,lambda_calculus::Port *>,const lambda_calculus::Port *,lambda_calculus::int_adr,_Select1st<pair<const lambda_calculus::Port *const,lambda_calculus::Port *> >,equal_to<const lambda_calculus::Port *>,allocator<lambda_calculus::Port *> >::_M_bkt_num(const pair<const lambda_calculus::Port *const,lambda_calculus::Port *> &, unsigned int) const' stl_hashtable.h:930: instantiated from `hashtable<pair<const lambda_calculus::Port *const,lambda_calculus::Port *>,const lambda_calculus::Port *,lambda_calculus::int_adr,_Select1st<pair<const lambda_calculus::Port *const,lambda_calculus::Port *> >,equal_to<const lambda_calculus::Port *>,allocator<lambda_calculus::Port *> >::resize(unsigned int)' stl_hashtable.h:744: instantiated from `hashtable<pair<const lambda_calculus::Port *const,lambda_calculus::Port *>,const lambda_calculus::Port *,lambda_calculus::int_adr,_Select1st<pair<const lambda_calculus::Port *const,lambda_calculus::Port *> >,equal_to<const lambda_calculus::Port *>,allocator<lambda_calculus::Port *> >::find_or_insert(const pair<const lambda_calculus::Port *const,lambda_calculus::Port *> &)' stl_hash_map.h:181: instantiated from here stl_hashtable.h:531: passing `const lambda_calculus::int_adr' as `this' argument of `const size_t lambda_calculus::int_adr::operator ()(const lambda_calculus::Port *)' discards qualifiers make: *** [main.o] Error 1 if you do got an idea please respond to buggy@xxxxxxxxx or to the list thanks ali

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problems compiling GCJ 3.2.3 on PC Cygwin; error with prims.cc

I am having problems compiling GCJ for PC Cygwin. The prims.cc file is the culprit. I see a lot of comments in various mailing lists and forums, concerning the prims.cc file, but none have lead me a solution. I am including the configure flags used and the resulting make listing below, which leads up to the problem in question. Thanks in advance for any/all assistance. -John Vrab Platform specifics are as follows: Compaq DeskPro, 1GHz, 256MB RAM, WIndows 2000 SP3.

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hash_map error: passing `const lambda_calculus::int_adr' as `this' argument of `const size_t lambda_calculus::int_adr::operator ()(const lambda_calculus::Port *)' discards qualifiers passing `const lambda_calculus::int_adr' as `this' argument of `const size_t lambda_calculus::int_adr::operator ()(const lambda_calculus::Port *)' discards qualifiers

Have you ever seen this error?, it means that I pass a pointer to a constant object out of it's protected context. Yes I cast it down to a normal pointer indeed. The pointer is actually casted to an integer. I'm keeping a hash of memory adresses with the adresses of kopies of the objects these adresses refer too. So I do not alter this const pointer. Here is the code: //hash function object for the Mem_hash class int_adr {public: const size_t operator()(const Port* const a) { int i; /*haha, fooled ya*/ here is the fooling part that actually works on other compilers const Port * const s= a;//(Port *)a; i=(int)s; return i; } }; //hash of memory adresses typedef std::hash_map< const Port *, Port *, int_adr , equal_to <const Port * > > Mem_hash; all these const identifiers are required by hash_map, the non-standard gnu stl-extension. I don't wnat to change code that works with other compilers I need some compiler option or something to disable the error. error mess: gcc -g -c -I/sw/pkg/gcc-2.95.2/include/g++-3 -I./loki main.cpp stl_hashtable.h: In method `size_t hashtable<pair<const lambda_calculus::Port *const,lambda_calculus::Port *>,const lambda_calculus::Port *,lambda_calculus::int_adr,_Select1st<pair<const lambda_calculus::Port *const,lambda_calculus::Port *> >,equal_to<const lambda_calculus::Port *>,allocator<lambda_calculus::Port *> >::_M_bkt_num_key(const lambda_calculus::Port *const &, unsigned int) const': stl_hashtable.h:536: instantiated from `hashtable<pair<const lambda_calculus::Port *const,lambda_calculus::Port *>,const lambda_calculus::Port *,lambda_calculus::int_adr,_Select1st<pair<const lambda_calculus::Port *const,lambda_calculus::Port *> >,equal_to<const lambda_calculus::Port *>,allocator<lambda_calculus::Port *> >::_M_bkt_num(const pair<const lambda_calculus::Port *const,lambda_calculus::Port *> &, unsigned int) const' stl_hashtable.h:930: instantiated from `hashtable<pair<const lambda_calculus::Port *const,lambda_calculus::Port *>,const lambda_calculus::Port *,lambda_calculus::int_adr,_Select1st<pair<const lambda_calculus::Port *const,lambda_calculus::Port *> >,equal_to<const lambda_calculus::Port *>,allocator<lambda_calculus::Port *> >::resize(unsigned int)' stl_hashtable.h:744: instantiated from `hashtable<pair<const lambda_calculus::Port *const,lambda_calculus::Port *>,const lambda_calculus::Port *,lambda_calculus::int_adr,_Select1st<pair<const lambda_calculus::Port *const,lambda_calculus::Port *> >,equal_to<const lambda_calculus::Port *>,allocator<lambda_calculus::Port *> >::find_or_insert(const pair<const lambda_calculus::Port *const,lambda_calculus::Port *> &)' stl_hash_map.h:181: instantiated from here stl_hashtable.h:531: passing `const lambda_calculus::int_adr' as `this' argument of `const size_t lambda_calculus::int_adr::operator ()(const lambda_calculus::Port *)' discards qualifiers make: *** [main.o] Error 1 if you do got an idea please respond to buggy@xxxxxxxxx or to the list thanks ali