pre01

来自「开放源码的编译器open watcom 1.6.0版的源代码」· 代码 · 共 123 行

#
#   testfile for preprocessor !if/!else/!else if/!endif
#   - non nested tests
#
#   09-Feb-90   D.J.Gaudet      Initial Implementation
#
#   $(guess)    tracks the preprocessor's attempts
#   $(answer)   is what the result should be
#
true=
guess=
answer=

#
# simple true/false conditions
#
!ifdef true
guess += 1
!endif
answer += 1

!ifdef false
guess += 2
!endif


#
# simple true/false conditions, with else sections
#
!ifdef true
guess += 3
!else
guess += 4
!endif
answer += 3

!ifdef false
guess += 5
!else
guess += 6
!endif
answer += 6


#
# simple true/false conditions, with else if sections
#
!ifdef true
guess += 7
!else ifdef true
guess += 8
!endif
answer += 7

!ifdef true
guess += 9
!else ifdef false
guess += 10
!endif
answer += 9

!ifdef false
guess += 11
!else ifdef true
guess += 12
!endif
answer += 12

!ifdef false
guess += 13
!else ifdef false
guess += 14
!endif


#
# simple true/false, w/else if, w/else
#
!ifdef true
guess += 15
!else ifdef true
guess += 16
!else
guess += 17
!endif
answer += 15

!ifdef true
guess += 18
!else ifdef false
guess += 19
!else
guess += 20
!endif
answer += 18

!ifdef false
guess += 21
!else ifdef true
guess += 22
!else
guess += 23
!endif
answer += 22

!ifdef false
guess += 24
!else ifdef false
guess += 25
!else
guess += 26
!endif
answer += 26


#
# it would be nice to use the preprocessor to test if everything works,
# but that what we're testing!
#
pre01: .symbolic
    $(ifeq) "$(answer)" "$(guess)"