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Docs: document embedded NUL round-trip limitation in parse/print - #1136
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cJSON_ParseWithLength can parse strings that contain embedded NUL bytes (e.g. from "\u0000"), but strings are stored as NUL-terminated C strings without an explicit length. cJSON_Print therefore truncates at the first NUL, so parse -> print does not round-trip for such strings. Document this limitation in cJSON.h (cJSON_ParseWithLength, cJSON_Print) and README, and add a regression test in tests/parse_with_opts.c that captures the documented behavior.
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cJSON_ParseWithLength can parse strings that contain embedded NUL bytes (e.g. from "\u0000"), but strings are stored as NUL-terminated C strings without an explicit length. cJSON_Print therefore truncates at the first NUL, so parse -> print does not round-trip for such strings.
Document this limitation in cJSON.h (cJSON_ParseWithLength, cJSON_Print) and README, and add a regression test in tests/parse_with_opts.c that captures the documented behavior.