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Call a function: Difference between revisions
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=={{header|I}}==
<lang i>//The type of the function argument determines whether or not the value is passed by reference or not.
<lang i>software {▼
//Eg. numbers are passed by value and lists/arrays are passed by reference.
var line = read() //Calling a function with no arguments and getting a return value.▼
var t = text(10) //Calling a function with fixed arguments.▼
print(1,2,3,4,5,6,7,8,9,0,line,t) //Calling a variadic function.▼
}</lang>▼
input = read() //Obtaining the return value of a function.
myprint = print
myprint("It was: ", input) //Calling first class functions, the same as calling ordinary functions.
//The only distinction that can be made between two functions is if they are 'real' or not.
if type(myprint) = concept
print("myprint is a not a real function")
else if type(myprint) = function
print("myprint is a real function")
end
//Partial functions can be created with static parts.
DebugPrint = print["[DEBUG] ", text]
DebugPrint("partial function!") //This would output '[DEBUG] partial function!'
if type(DebugPrint) = concept
print("DebugPrint is a not a real function")
else if type(DebugPrint) = function
print("DebugPrint is a real function")
end
}
=={{header|Icon}} and {{header|Unicon}}==
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