Nikolas Klauser 60cc48d900 [libc++] Refactor strings operator+ tests ...

This avoids duplicating the test data for all the different tests.

2025-02-07 14:07:15 +01:00

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string_op!=

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string_op+

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string_operator==

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string_opgt

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string_opgt=

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string_oplt

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string_oplt=

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string.cmp

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string.io

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string.special

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