Louis Dionne ed962a66c5 [libc++] Implement LWG4023 (#87513) ...

This patch implements LWG4023 by adding explicit assertions for the
added preconditions and also fixes a few tests that were violating these
preconditions.

2024-04-25 09:32:35 -04:00

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streambuf

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streambuf.reqts

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lit.local.cfg

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