1 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -fsyntax-only -Wcast-qual -verify %s 2 3 #include <stdint.h> 4 5 void foo() { 6 const char * const ptr = 0; 7 const char * const *ptrptr = 0; 8 char *y = (char *)ptr; // expected-warning {{cast from 'const char *' to 'char *' drops const qualifier}} 9 char **y1 = (char **)ptrptr; // expected-warning {{cast from 'const char *const' to 'char *' drops const qualifier}} 10 const char **y2 = (const char **)ptrptr; // expected-warning {{cast from 'const char *const *' to 'const char **' drops const qualifier}} 11 12 char *z = (char *)(uintptr_t)(const void *)ptr; // no warning 13 char *z1 = (char *)(const void *)ptr; // expected-warning {{cast from 'const void *' to 'char *' drops const qualifier}} 14 15 volatile char *vol = 0; 16 char *vol2 = (char *)vol; // expected-warning {{cast from 'volatile char *' to 'char *' drops volatile qualifier}} 17 const volatile char *volc = 0; 18 char *volc2 = (char *)volc; // expected-warning {{cast from 'const volatile char *' to 'char *' drops const and volatile qualifiers}} 19 20 int **intptrptr; 21 const int **intptrptrc = (const int **)intptrptr; // expected-warning {{cast from 'int **' to 'const int **' must have all intermediate pointers const qualified}} 22 volatile int **intptrptrv = (volatile int **)intptrptr; // expected-warning {{cast from 'int **' to 'volatile int **' must have all intermediate pointers const qualified}} 23 24 int *intptr; 25 const int *intptrc = (const int *)intptr; // no warning 26 27 const char **charptrptrc; 28 char **charptrptr = (char **)charptrptrc; // expected-warning {{cast from 'const char *' to 'char *' drops const qualifier}} 29 } 30
