how to call a function dynamically in C like reflections in java

[sandeepj]

Hi
I am trying to get a name of the function from the user and trying to invoke that function using the string alone is there any way possible in doing so in C.

thanks
sandeep

[weaknessforcats]

Yes.

char fname[80]
fgets(fname, 80, stdin);
if (!strcmp("Howdy", fname)
{
      Howdy();
 
}
 

But that only works if the function has no arguments. If the function has arguments, you will need to get those inside that if block.

But why would you do this?? Users don't care about function names, only programmers do.

[sandeepj]

Yes.

char fname[80]
fgets(fname, 80, stdin);
if (!strcmp("Howdy", fname)
{
      Howdy();
 
}
 

But that only works if the function has no arguments. If the function has arguments, you will need to get those inside that if block.

But why would you do this?? Users don't care about function names, only programmers do.

Is there a way that i dont use an if block as in using the string name alone i should be able to invoke the function whose name is present in the string name

Psedocode:

gets(str);
invoke(str);


list of functions to execute:
func1();
func2();
.
.
.
my str will change dynamically as i will read a list of functions to executed from a file and execute them 1 after the other based on the str name using different threads.

Thanks
Sandeep