Re: [PATCH] c++: tsubst_function_decl and excess arg levels [PR100102]

On 6/3/21 11:46 PM, Patrick Palka wrote: Here, when instantiating the dependent alias template duration::__is_harmonic with args={{T,U},{int}}, we find ourselves substituting the function decl _S_gcd. Since we have more arg levels than _S_gcd has parm levels, an old special case in tsubst_functi

[PATCH] c++: tsubst_function_decl and excess arg levels [PR100102]

Here, when instantiating the dependent alias template duration::__is_harmonic with args={{T,U},{int}}, we find ourselves substituting the function decl _S_gcd. Since we have more arg levels than _S_gcd has parm levels, an old special case in tsubst_function_decl causes us to unwantedly reduce args