tree a908e2f5ba39c0bcd70cdeade3c946bd887e5cdb
parent bb4c52285896874ffe676de2c27e7462d8e32b21
author Niels Lohmann <mail@nlohmann.me> 1784618828 +0000
committer Niels Lohmann <mail@nlohmann.me> 1784618828 +0000
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Avoid deep recursion in serialization write-buffer test

The "many small structural writes exceed the write buffer" subcase built
a 1100-deep nested array and dumped it to force >1024 consecutive
single-character writes through put_char (exercising the write buffer's
flush-when-full branch). dump() recurses per nesting level, so on MSVC
debug builds (smaller default stack, larger frames) this overflowed the
stack and crashed test-serialization; Linux/macOS have enough headroom to
hide it.

Replace the nesting with a flat array of 500 empty strings. Each element
emits '"', '"', ',' via put_char, so the dump is a long run of
single-character writes (1501 bytes > the 1024-byte buffer) at nesting
depth two, hitting the same flush branch without deep recursion. Library
code is unchanged.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XAYM1qhSA2FDaDcGfPW3fG
Signed-off-by: Niels Lohmann <mail@nlohmann.me>