Man pages matching name cdecl in section 1:

cdecl.1.en	debian 10 / cdecl
cdecl.1.en	debian 10 / cutils
cdecl.1.en	debian 11 / cdecl
cdecl.1.en	debian 11 / cutils
cdecl.1.en	debian 12 / cdecl
cdecl.1.en	debian 12 / cutils