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Showing content from https://github.com/cplusplus/CWG/issues/576 below:

CWG2913 [temp.deduct.guide] *requires-clause* in the wrong position in the grammar for *deduction-guide* · Issue #576 · cplusplus/CWG · GitHub

Reference (section label): [temp.deduct.guide]

Issue description: CWG2707 added the missing requires-clause to the grammar for deduction-guide, but added it in a position that is inconsistent with function declarations. Since the grammar for deduction guides is supposed to match that of other declarator-based declarations, the requires-clause should be at the end.

Suggested resolution:

Change in [temp.deduct.guide]/1:

deduction-guide:

• explicit-specifier_opt template-name ( parameter-declaration-clause ) requires-clause_opt-> simple-template-id requires-clause_opt;

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