The original st.c was public domain hash table implementation, but Ruby's st.c is highly modified, and its data structure is not compatiblie with the original one.
Therefore, when creating an extension library to wrap C code that uses the original st.c, the symbols conflict, which leads to segfault.
This changes the prefix st_* of st.c functions to rb_st_* for reflecting that they are specific to Ruby's, and avoid symbol conflicts.
Added by mame (Yusuke Endoh) about 6 years ago
st.c: Use rb_st_* prefix instead of st_* (#2479)
The original st.c was public domain hash table implementation, but
Ruby's st.c is highly modified, and its data structure is not
compatiblie with the original one.
Therefore, when creating an extension library to wrap C code that uses
the original st.c, the symbols conflict, which leads to segfault.
This changes the prefix
st_*of st.c functions torb_st_*forreflecting that they are specific to Ruby's, and avoid symbol conflicts.