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typedef

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  1. typedef int (*pf) (int, int);
  2.  

What does above line of code would do?
Jun 25 '13 #1
1 1486
donbock
2,426 Expert 2GB
The C Programming Language, by Kernighan & Ritchie, near the end of section 6.7 (typedef)...
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  1. typedef int (*PFI)(char *, char *);
creates the type PFI, for "pointer to function (of two char * arguments) returning int," which can be used in contexts like
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  1. PFI strcmp, numcmp;
See also C FAQ 1.17.

Portability issues with function pointers:
  • Function pointers and data pointers may have significantly different representations, including different sizes. Refer to C FAQ 4.13.
  • The NULL macro can be used with either function pointers or data pointers.
  • The "%p" printf conversion specifier should not be used with function pointers.
Jun 25 '13 #2

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