ANSI-C lambda blocks

clang-blocks.c

/*
sudo apt-get install libblocksruntime-dev
clang -fblocks clang-blocks.c -lBlocksRuntime -o clang-blocks
CAVEAT: only works with clang and BlocksRuntime
*/

#include <stdio.h>
 
int main(void)
{
    void (^f)() = ^{
        for (int i = 0; i < 100; i++)
            printf("%d\n", i);
    };
    f();
    return 0;
}

gcc-blocks.c

/*
gcc -std=gnu99 gcc-blocks.c -o gcc-blocks
CAVEAT: only works with gcc
*/

#include <stdio.h>
 
int main(void)
{
  void (*f)(void) =
    ({
      void __fn__ (void) {
        for (int i = 0; i < 100; i++)
          printf("%d\n", i);
      }
      __fn__;
    });
  f();
  return 0;
}