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Add support for abs (absolute value) function in theory arith (it is part of the SMT-LIB 2.0 standard)

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2013-02-03 15:28:56 -08:00
parent 490905e320
commit c4f762028f
6 changed files with 31 additions and 0 deletions
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4
src/ast/arith_decl_plugin.h
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@ -51,6 +51,7 @@ enum arith_op_kind {
OP_TO_REAL,
OP_TO_INT,
OP_IS_INT,
OP_ABS,
OP_POWER,
// hyperbolic and trigonometric functions
OP_SIN,
@ -121,6 +122,9 @@ protected:
func_decl * m_r_power_decl;
func_decl * m_i_power_decl;
func_decl * m_r_abs_decl;
func_decl * m_i_abs_decl;
func_decl * m_sin_decl;
func_decl * m_cos_decl;
func_decl * m_tan_decl;