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cond-token-number.mk revision 1.3 
      1 # $NetBSD: cond-token-number.mk,v 1.3 2020/09/14 06:22:59 rillig Exp $
      2 #
      3 # Tests for number tokens in .if conditions.
      4 
      5 .if 0
      6 .  error
      7 .endif
      8 
      9 # Even though -0 is a number and would be accepted by strtod, it is not
     10 # accepted by the condition parser.
     11 #
     12 # See the ch_isdigit call in CondParser_String.
     13 .if -0
     14 .  error
     15 .endif
     16 
     17 # Even though +0 is a number and would be accepted by strtod, it is not
     18 # accepted by the condition parser.
     19 #
     20 # See the ch_isdigit call in CondParser_String.
     21 .if +0
     22 .  error
     23 .endif
     24 
     25 # Even though -1 is a number and would be accepted by strtod, it is not
     26 # accepted by the condition parser.
     27 #
     28 # See the ch_isdigit call in CondParser_String.
     29 .if !-1
     30 .  error
     31 .endif
     32 
     33 # Even though +1 is a number and would be accepted by strtod, it is not
     34 # accepted by the condition parser.
     35 #
     36 # See the ch_isdigit call in CondParser_String.
     37 .if !+1
     38 .  error
     39 .endif
     40 
     41 # When the number comes from a variable expression though, it may be signed.
     42 # XXX: This is inconsistent.
     43 .if ${:U+0}
     44 .  error
     45 .endif
     46 
     47 # When the number comes from a variable expression though, it may be signed.
     48 # XXX: This is inconsistent.
     49 .if !${:U+1}
     50 .  error
     51 .endif
     52 
     53 # Ensure that parsing continues until here.
     54 .info End of the tests.
     55 
     56 all: # nothing
     57