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gdb: Arithmetic In Guile

 
 23.3.3.6 Arithmetic In Guile
 ............................
 
 The '(gdb)' module provides several functions for performing arithmetic
 on '<gdb:value>' objects.  The arithmetic is performed as if it were
 done by the target, and therefore has target semantics which are not
 necessarily those of Scheme.  For example operations work with a fixed
 precision, not the arbitrary precision of Scheme.
 
    Wherever a function takes an integer or pointer as an operand, GDB
 will convert appropriate Scheme values to perform the operation.
 
  -- Scheme Procedure: value-add a b
 
  -- Scheme Procedure: value-sub a b
 
  -- Scheme Procedure: value-mul a b
 
  -- Scheme Procedure: value-div a b
 
  -- Scheme Procedure: value-rem a b
 
  -- Scheme Procedure: value-mod a b
 
  -- Scheme Procedure: value-pow a b
 
  -- Scheme Procedure: value-not a
 
  -- Scheme Procedure: value-neg a
 
  -- Scheme Procedure: value-pos a
 
  -- Scheme Procedure: value-abs a
 
  -- Scheme Procedure: value-lsh a b
 
  -- Scheme Procedure: value-rsh a b
 
  -- Scheme Procedure: value-min a b
 
  -- Scheme Procedure: value-max a b
 
  -- Scheme Procedure: value-lognot a
 
  -- Scheme Procedure: value-logand a b
 
  -- Scheme Procedure: value-logior a b
 
  -- Scheme Procedure: value-logxor a b
 
  -- Scheme Procedure: value=? a b
 
  -- Scheme Procedure: value<? a b
 
  -- Scheme Procedure: value<=? a b
 
  -- Scheme Procedure: value>? a b
 
  -- Scheme Procedure: value>=? a b
 
    Scheme does not provide a 'not-equal' function, and thus Guile
 support in GDB does not either.
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