The API is quite large, and the redundancy screams for functors. What about the following standard library factoring:

(srfi 160): everything

(srfi 160 base): @?, @vector?, xxxxxx@vector,

@vector-length, @vector-ref, @vector-set

(srfi 160 u1vector): u1*

(srfi 160 u8vector): u8*

(srfi 160 s8vector): s8*

(srfi 160 u16vector): u16*

(srfi 160 s16vector): s16*

(srfi 160 u32vector): u32*

(srfi 160 s32vector): s32*

(srfi 160 u64vector): u64*

(srfi 160 s64vector): s64*

(srfi 160 f32vector): f32*

(srfi 160 f64vector): f64*

(srfi 160 c64vector): c64*

(srfi 160 c128vector): c128*

Alex