[EXT_EP-8596] Access of const static member through pointer is not a constant expression. - Software Issue Report (SIR)

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Product:
Code Generation Tools
Internal ID:
CODEGEN-4015
Found In Release:

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ARM_18.1.0.LTS
ARM_18.12.0.LTS
ARM_20.2.0.LTS

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ARM_18.1.0.LTS ARM_18.12.0.LTS ARM_20.2.0.LTS
Release Notes:

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The compiler emits an arguably spurious error on an access of a const static data member through a pointer when a constant expression is required. While gcc allows this silently, both the TI compiler and clang emit errors in stricter modes.

struct C { const static int m; };
const int C::m = 4;
C c, *cp = &c;
int main(void)
{
struct S02 {
int x : cp->m; // error, not a constant expression
};
}

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The compiler emits an arguably spurious error on an access of a const static data member through a pointer when a constant expression is required. While gcc allows this silently, both the TI compiler and clang emit errors in stricter modes. struct C { const static int m; }; const int C::m = 4; C c, *cp = &c; int main(void) { struct S02 { int x : cp->m; // error, not a constant expression }; }

Access of const static member through pointer is not a constant expression.