- dlerror
- dlopen
- dlsym
- dprintf
- drand48
- drem
- dysize
- ecvt
- ecvt_r
- encrypt
- endfsent
- endgrent
- endhostent
- endmntent
- endpwent
- endttyent
- endusershell
- envz_add
- erf
- erfc
- err
- errno
- errx
- ether_aton
- execl
- execle
- execlp
- execv
- execvp
- exit
- exp
- expm1
- fabs
- fabsf
- fabsl
- fclose
- fcloseall
- fcvt
- fcvt_r
- fdopen
- feclearexcept
- feof
- ferror
- fflush
- ffs
- fgetc
- fgetgrent
- fgetpos
- fgetpwent
- fgets
- fgetwc
- fgetws
- fileno
- finite
- flockfile
- floor
- floorf
- floorl
- fmod
- fnmatch
- fopen
- forkpty
- fpathconf
- fprintf
- fpurge
- fputc
- fputs
- fputwc
- fputws
- fread
MAN (3)
Library functions, covering in particular the C standard library