llvm/llvm-project
View on GitHubCan not use C99 function names as variable names in C89
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#15,522 opened on Feb 4, 2013
bugzillacclang:frontendconfirmedgood first issuerejects-valid
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Description
| Bugzilla Link | 15150 |
| Version | unspecified |
| OS | All |
| Reporter | LLVM Bugzilla Contributor |
| CC | @gribozavr |
Extended Description
The following code doesn't compile in clang, but does in gcc:
int logf = 5;
int main() {
return logf;
}
# gcc test.c -o test -std=c89
# ./test; echo $?
5
# clang test.c -o test -std=c89
test.c:1:5: error: redefinition of 'logf' as different kind of symbol
int logf = 5;
^
test.c:1:5: note: previous definition is here
test.c:4:16: warning: incompatible pointer to integer conversion returning 'float (float)' from a function with result type 'int' [-Wint-conversion]
return logf;
^~~~
1 warning and 1 error generated.