src/test/scripts/functions/misc/Functions11.dml

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# Import function definition override of built-in sum
source("./src/test/scripts/functions/misc/FunctionsL1.dml") as Functions

# Local function definition override of built-in min returning scalar
min = function(integer x) return (integer y)
{
    print("override min")
    Z = matrix(x, rows=4, cols=2)
    y = x*2
}

# Use local min after definition
result = min(1)
print("min is " + result)

M1 = matrix("1 2 3 4", rows=2, cols=2)
M2 = matrix("5 6 7 8", rows=2, cols=2)

# Built-in min not directly accessible in this script due to local override
#result = min(M1)

# Use imported min
result = Functions::min(M1)

# Use imported function with overrides
[min, max] = Functions::minMax(M2)

# Use imported sum
result = Functions::sum(M1)

# Built-in sum accessible since imported override
result = sum(M2)
print("Built-in sum is " + result)

# Use local override before function definition
Z = rand(2)
print("rand sum is " + sum(Z))

# Local function definition override of built-in rand returning matrix
rand = function(int x) return (matrix[double] Z)
{
    print("override rand")
    Z = matrix(x, rows=4, cols=2)
    y = x*2
}