Naming conventions in UNIX C functions (_t and _st) -

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i notice there function return types named *****_t or ******_st. "_st" , "_t" mean?

posix reserves names ending _t types. although quite common see code invents own type names ending _t, doing dangerous - can run posix systems define (different) type same name.

in libmemcached source, looks _st suffix used indicate structure type:

types.h:typedef struct memcached_st memcached_st; types.h:typedef struct memcached_stat_st memcached_stat_st; types.h:typedef struct memcached_analysis_st memcached_analysis_st; types.h:typedef struct memcached_result_st memcached_result_st; types.h:// of flavors of memcache_server_st types.h:typedef struct memcached_server_st memcached_server_st; types.h:typedef const struct memcached_server_st *memcached_server_instance_st; types.h:typedef struct memcached_server_st *memcached_server_list_st;

i didn't find single instance of function ending _st (but may not have looked hard enough).


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