Using the GNU Compiler Collection (GCC): Hints implementation (original) (raw)

The extent to which suggestions made by using the inline function specifier are effective (C99 and C11 6.7.4).

GCC will not inline any functions if the -fno-inline option is used or if -O0 is used. Otherwise, GCC may still be unable to inline a function for many reasons; the -Winline option may be used to determine if a function has not been inlined and why not.