http://llvm.org/bugs/show_bug.cgi?id=12504
Bug #: 12504
Summary: Array type qualifiers only allowed in function
parameters
Product: clang
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Frontend
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Classification: Unclassified
Following the C standard:
=============================
6.7.5.2 Array declarators
Constraints
In addition to optional type qualifiers and the keyword static, the [ and ] may
delimit an expression or *. If they delimit an expression (which specifies the
size of an array), the expression shall have an integer type. If the expression
is a constant expression, it shall have a value greater than zero. The element
type shall not be an incomplete or function type. The optional type qualifiers
and the keyword static shall appear only in a declaration of a function
parameter with an array type, and then only in the outermost array type
derivation.
=============================
I am allowed to use static/restrict in a function parameter but not within a
function:
========================
void f_restrict(float A[restrict 10]) { // valid
float B[restrict 10]; // invalid
}
void f_static(float A[static 10]) { // valid
float B[static 10]; // invalid
}
========================
gcc gets it right (icc too):
gcc /tmp/test.c -c -std=gnu99
/tmp/test.c: In function ‘f_restrict’:
/tmp/test.c:2:8: error: static or type qualifiers in non-parameter array
declarator
/tmp/test.c: In function ‘f_static’:
/tmp/test.c:5:8: error: static or type qualifiers in non-parameter array
declarator
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