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Mathematical dialplan function
Yeah, I thought it was a little insane too..
adds:
Sum, Multiply, Divide, Subtract, Modulus, GT, LT, GTE, LTE, EQ functions to Asterisk
All functions follow the same basic pattern for parameters:
parameter 1 = the math expression
parameter 2 = the type of result
Perform calculation on number 1 to number 2. Valid ops are:
+,-,/,*,%,<,>,>=,<=,==
and behave as their C equivalents.
<type_of_result> - wanted type of result:
f, float - float(default)
i, int - integer,
h, hex - hex,
c, char - char
Each math expression is performed as
Action param1 on param2
eg:
Action = Divide
Param1 = 10
Param2 = 2
Results in
Divide 10 by 2
Example dialplan:
exten => 11099,1,Set(RV=${MATH(1+20)})
exten => 11099,n,NOOP(${RV})
exten => 11099,n,Set(RV=${MATH(10*2)})
exten => 11099,n,NOOP(${RV})
exten => 11099,n,Set(RV=${MATH(10*2)})
exten => 11099,n,NOOP(${RV})
exten => 11099,n,Set(RV=${MATH(10-2)})
exten => 11099,n,NOOP(${RV})
exten => 11099,n,Set(RV=${MATH(2%10)})
exten => 11099,n,NOOP(${RV})
exten => 11099,n,Set(RV=${MATH(10/0)})
exten => 11099,n,NOOP(${RV})
exten => 11099,n,Set(RV=${MATH(10-200)})
exten => 11099,n,NOOP(${RV})
exten => 11099,n,Set(RV=${MATH(1-20)})
exten => 11099,n,NOOP(${RV})
exten => 11099,n,Set(RV=${MATH(1<20)})
exten => 11099,n,NOOP(${RV})
exten => 11099,n,Set(RV=${MATH(1>=20)})
exten => 11099,n,NOOP(${RV})
exten => 11099,n,Set(RV=${MATH(101>20)})
exten => 11099,n,NOOP(${RV})
exten => 11099,n,Set(RV=${MATH(1==20)})
exten => 11099,n,NOOP(${RV})
exten => 11099,n,Set(RV=${MATH(20<=20)})
exten => 11099,n,NOOP(${RV})
exten => 11099,n,Set(RV=${MATH(123%16,int)})
exten => 11099,n,NOOP(${RV})
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