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From: ediaz@veridis.com To: gcc-gnats@gcc.gnu.org Subject: preprocessor/9688: pasting "<" and "ValidStruct" does not give a valid preprocessing token Date: Thu, 13 Feb 2003 09:46:00 -0000 [thread overview] Message-ID: <20030213093909.15883.qmail@sources.redhat.com> (raw) >Number: 9688 >Category: preprocessor >Synopsis: pasting "<" and "ValidStruct" does not give a valid preprocessing token >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: rejects-legal >Submitter-Id: net >Arrival-Date: Thu Feb 13 09:46:02 UTC 2003 >Closed-Date: >Last-Modified: >Originator: ediaz@veridis.com >Release: 3.3 branch, pre-release. 2003-02-12 >Organization: >Environment: SuSE 7.3/Linux >Description: When I try to compile a file using macros of templates, I get a 'MyFileStruct.h:541:67: pasting "<" and "MyStruct" does not give a valid preprocessing token' message. It worked perfectly with the 2.95.x serie and with the 3.2.1 version. I've tryied to do it in two passes, with a --save-temps and a g++ thefile.ii -c and it worked. Like if the processed code was not the same as the preprocessor's output. I've tried to make a dummy example which get that strange behaviour. sh-2.05$ g++ test.cpp -o t1 test.cpp:57:32: pasting "<" and "Field" does not give a valid preprocessing token Got a failure, but in two passes : sh-2.05$ g++ test.cpp --save-temps test.cpp:57:32: pasting "<" and "Field" does not give a valid preprocessing token sh-2.05$ g++ test.ii -o t2 sh-2.05$ Works fine. >How-To-Repeat: Just try the test.cpp file with the command lines in the description field. >Fix: A (IMHO dirty) workaround is to do it in two passes. >Release-Note: >Audit-Trail: >Unformatted: ----gnatsweb-attachment---- Content-Type: text/plain; name="test.cpp" Content-Disposition: inline; filename="test.cpp" #include<stdlib.h> #include<stdio.h> #include<string.h> template <class T> class C { T hold; public: C(T to_hold) { hold=to_hold; } static void process(T a_value) { // NOP puts("Generic"); return 0; } }; #define CM(x,va,vg) \ template<> \ class C < ##x > \ { \ public: \ static void process(x a_value) \ { \ va \ vg \ } \ }; #define V(y) puts( #y ); struct Field { char* name; char* value; bool operator==(const Field& o) const { return (strcmp(name,o.name)==0) && (strcmp(value,o.value)==0); } bool operator!=(const Field& o) const { return (strcmp(name,o.name)!=0) || (strcmp(value,o.value)!=0); } }; CM( Field , V(name1) , V(name2)); int main(int argc,char* argv[]) { Field f1; f1.name="afield"; f1.name="avalue"; C<Field>::process(f1); return 0; }
next reply other threads:[~2003-02-13 9:46 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2003-02-13 9:46 ediaz [this message] 2003-02-13 10:12 neil 2003-02-13 10:26 Eric Diaz
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