Domanda
I know _r
suffix is used to indicate something thread-safe. For example strtok
and strtok_r
or libmysql.so
and libmysql_r.so
. But I cannot find anywhere what this actually means ? For example, _t
means 'type' and what does _r
suffix mean?
Soluzione
See Chapter A.4.16 Thread-Safety
in http://pubs.opengroup.org/onlinepubs/000095399/xrat/xbd_chap04.html:
The suffix "_r" is historical, where the 'r' stood for "reentrant".
Altri suggerimenti
The _r
suffix stands for reentrant.
_r
means reentrant, even though those functions may not be really reentrant. Those functions just guarantee not to use static storage.
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