Compiler Warnings:warning: implicit declaration of function `release_pages'

[Amaresh Chandra Das]

hi

i got this type of warning.

Can any body will guide me.

Thanks in advance
Amaresh

[arnaudk]

It means you are using the function release_pages without having declared it or defined it.

void release_pages(int i); // declaration
 
int main()
{
  int i=1;
  release_pages(i); // using the function
}
 
void release_pages(int i) // definition
{
   printf("Releasing %i pages",i)
}
 

You need at least a declaration of the function. Your function may then be defined in another c file and linked with your main file when compiling.