Article View: gnu.gcc.bug
Article #1065built-in strlen returns long unsigned int?
From: Jason Merrill
Date: Fri, 04 Sep 1992 20:44
Date: Fri, 04 Sep 1992 20:44
52 lines
1835 bytes
1835 bytes
Compiling libg++ 2.2 with gcc 2.2.2, I get the following result: ----- gcc -g -I.. -I../../../libg++/src -I../../../libg++/src/../iostream -I../../../libg++/src/../g++-include -c ../../../libg++/src/AllocRing.cc In file included from ../../../libg++/src/std.h:26, from ../../../libg++/src/AllocRing.cc:22: ../../../libg++/src/../g++-include/string.h:28: declaration of `int strlen (const char *)' <built-in>:0: conflicts with built-in declaration `long unsigned int strlen (const char *)' ----- Why does gcc think that strlen should return long unsigned int, rather than int? How does it go about deciding the return type for these built-in functions? I haven't been able to find the place in the make process where this happens. I am working on a Sequent Symmetry running Dynix. The string.h we are using comes, I believe, from the AT&T C++ translator v1.2, and looks like this: /* @(#)string.h 1.2 */ extern char *strcpy(), *strncpy(), *strcat(), *strncat(), *strchr(), *strrchr(), *strpbrk(), *strtok(); extern int strcmp(), strncmp(), strlen(), strspn(), strcspn(); Would the absence of "int" in front of "strlen()" be confusing the make process? The strings.h on the machine is the Sequent version, and has the ususal-style declaration. -- Jason Merrill jason@jarthur.claremont.edu -- Fool on a Pedestal
Technical Details
Message-ID:
<1992Sep4.204457.25043@muddcs.claremont.edu>Path:
arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!jarthur.claremont.edu!jasonShow Full Headers
Complete Article Headers
Newsgroups: gnu.gcc.bug Path: arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!jarthur.claremont.edu!jason From: jason@jarthur.claremont.edu (Jason Merrill) Subject: built-in strlen returns long unsigned int? Message-ID: <1992Sep4.204457.25043@muddcs.claremont.edu> Sender: gnulists@ai.mit.edu Organization: Harvey Mudd College, Claremont, CA 91711 Distribution: gnu Date: Fri, 4 Sep 1992 20:44:57 GMT Approved: bug-gcc@prep.ai.mit.edu Lines: 53