Expression command (C and C++)

The Expression command evaluates the given expression. The expression can be used to either assign a value to a variable or to call a function.

expression

A valid z/OS® Debugger C and C++ expression. Assignment is affected by including one of the C and C++ assignment operators in the expression. No use is made of the value resulting from a stand-alone expression.

Usage notes

• Function invocations in expressions are restricted to functions contained in the currently executing enclave.
• The Expression command cannot be used while you replay recorded statements by using the PLAYBACK commands.

Examples

• Initialize the variables x, y, z. You can use functions to provide values for variables.

  x = 3 + 4⁄5;
  y = 7;
  z = 8 * func(x, y);

• Increment y and assign the remainder of the integer division of omega by 4 to alpha.

  alpha = (y++, omega % 4);

• To list and assign a new value to R1 in the disassembly view:

  LIST(R1);
  R1 = 0x0001FAF0;