unsigned NxsBlock::DemandPositiveInt ( NxsToken token,
const char *  contextString 
) const [protected]

Advances the token, and returns the unsigned int that the token represents.

Sets errormsg and raises a NxsException on failure. `contextString` is used in error messages: "${contextString} must be a number greater than 0"

Definition at line 622 of file nxsblock.cpp.

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