Compiler Error C2561
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The latest version of this topic can be found at Compiler Error C2561.
identifier' : function must return a value
The function was declared as returning a value, but the function definition does not contain a return statement.
This error can be caused by an incorrect function prototype:
If the function does not return a value, declare the function with return type void.
Check that all possible branches of the function return a value of the type declared in the prototype.
C++ functions containing inline assembly routines that store the return value in the
AXregister may need a return statement. Copy the value inAXto a temporary variable and return that variable from the function.
The following sample generates C2561:
// C2561.cpp
int Test(int x) {
if (x) {
return; // C2561
// try the following line instead
// return 1;
}
return 0;
}
int main() {
Test(1);
}