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memcpy Scol 4.5 or above required

Copy a part of a string directly into another and return the number of bytes copyied

Prototype :

fun [S I S I I] I

• S : the destination string
• I : the position in the destination string
• S : the source string
• I : the position in the source string
• I : the lenght to copy

Return : I the number of bytes copyied or nil if error

See also :

Example :