/*------------------------------------------------------------------------- * link - canary . c * Detect whether src / common functions came from frontend or backend . * * Copyright ( c ) 2018 - 2025 , PostgreSQL Global Development Group * * IDENTIFICATION * src / common / link - canary . c * * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #include "c.h" #include "common/link-canary.h" /* * This function just reports whether this file was compiled for frontend * or backend environment . We need this because in some systems , mainly * ELF - based platforms , it is possible for a shlib ( such as libpq ) loaded * into the backend to call a backend function named XYZ in preference to * the shlib ' s own function XYZ . That ' s bad if the two functions don ' t * act identically . This exact situation comes up for many functions in * src / common and src / port , where the same function names exist in both * libpq and the backend but they don ' t act quite identically . To verify * that appropriate measures have been taken to prevent incorrect symbol * resolution , libpq should test that this function returns true . bool void )#ifdef FRONTENDreturn true ;#else return false ;#endif
Messung V0.5 in Prozent C=95 H=100 G=97
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(vorverarbeitet am 2026-08-07)
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