You don't need a hashtable for this:
-- #include <stdio.h>void a(); void b(); void c();
int main(int argc, char **argv){ void (*functions[3])(void); char funcname='\0';
if(argc != 2){ printf("Usage: %s function\n",argv[0]); return 1; }//if wrong usage
funcname=argv[1][0];
if(funcname<'a' || funcname>'c'){ printf("Invalid function: %s\n",argv[1]); return 1; }//if invalid function
functions[0]=&a; functions[1]=&b; functions[2]=&c;
functions[funcname-'a'](); return 0; }//main
void a(){ printf("a\n"); }
void b(){ printf("b\n"); }
void c(){ printf("c\n"); } --
You can keep track of relationship of the pointers to the array with an enum or a switch or however you like.
I really do love glib, though, and tend to use it for any nontrivial C project.
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