https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90632
Bug ID: 90632
Summary: Incorrect error diagnosis of variable declaration
Product: gcc
Version: 7.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: tangyixuan at mail dot dlut.edu.cn
Target Milestone: ---
GCC reports incorrect error diagnosis for error recovery.
For the following example, GCC should not report the undeclared variable after
error recovery when inserting the expected ';' in the first line.
$ cat s.c
static int c
static int a = 0;
static int func_1(int b);
static int func_1(int b)
{
return b;
}
int main (int argc, char* argv[])
{
c = func_1(a);
return 0;
}
$ gcc s.c
$ gcc --version
gcc (Ubuntu 4.8.5-4ubuntu8~14.04.2) 7.1.0
s.c:2:1: error：expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘static’
static int a = 0;
^~~~~~
s.c:10:5: error: ‘c’ undeclared (first use in this function)
c = func_1(a);
^
s.c:10:16: error: ‘a’ undeclared (first use in this function)
c = func_1(a);
^
$ clang-8.0 s.c
s.c:1:13: error: expected ';' after top level declarator
static int c
^
;
1 error generated.
