1 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-config faux-bodies=true,model-path=%S/Inputs/Models -analyzer-output=plist-multi-file -verify %s -o %t 2 // RUN: %normalize_plist <%t | diff -ub %S/Inputs/expected-plists/model-file.cpp.plist - 3 4 typedef int* intptr; 5 6 // This function is modeled and the p pointer is dereferenced in the model 7 // function and there is no function definition available. The modeled 8 // function can use any types that are available in the original translation 9 // unit, for example intptr in this case. 10 void modeledFunction(intptr p); 11 12 // This function is modeled and returns true if the parameter is not zero 13 // and there is no function definition available. 14 bool notzero(int i); 15 16 // This functions is not modeled and there is no function definition. 17 // available 18 bool notzero_notmodeled(int i); 19 20 int main() { 21 // There is a nullpointer dereference inside this function. 22 modeledFunction(0); 23 24 int p = 0; 25 if (notzero(p)) { 26 // It is known that p != 0 because of the information provided by the 27 // model of the notzero function. 28 int j = 5 / p; 29 } 30 31 if (notzero_notmodeled(p)) { 32 // There is no information about the value of p, because 33 // notzero_notmodeled is not modeled and the function definition 34 // is not available. 35 int j = 5 / p; // expected-warning {{Division by zero}} 36 } 37 38 return 0; 39 } 40 41