KITFORMA · EDITORIAL GUIDE
Why does a dependent member template call need the template keyword?
KitForma editorial guide. After a dependent object expression, the parser may interpret the less-than token as an operator unless told that a member template name follows.
Step-by-step guidance
After a dependent object expression, the parser may interpret the less-than token as an operator unless told that a member template name follows.
Use the disambiguation form appropriate to the expression, for example
obj.template convert<int>(), when convert is a dependent member template. Verify the concrete type supplies that member and its constraints accept int. Keep typename for type interpretation; it solves a different ambiguity.
Compile one valid instantiation and one unsupported conversion to observe the separate failure modes. Do not add template before ordinary non-template members. This repair addresses parsing and lookup, not a missing implementation or a runtime conversion failure.Sources and verification
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