WOLFRAM

Wolfram Language & System Documentation Center
Compile::cprank

Compile::cprank

Details

  • This message is generated when the rank of the indicated result cannot be determined.
  • Compiled evaluation requires that the tensor rank of every expression be known.
  • This message can be generated by compilation of MapThread, MapAt, and Outer.
  • Off[message] switches off the message; On[message] switches it on. For example: Off[Compile::cprank].

Examples

Basic Examples  (1)

A warning is generated because the rank of the result from Outer cannot be determined:

Wolfram Language code: Compile[{}, Outer[List, {{1}, {2}}, {{4}, {5}}, n], {{n, _Integer}}]

Here the arguments in Outer are given explicitly, so the rank of the result can be determined:

Wolfram Language code: Compile[{}, Outer[List, {{1}, {2}}, {{4}, {5}}, 1]]