clang/test/Sema/sign-conversion.c

   1 // RUN: %clang_cc1 -fsyntax-only -verify -Wsign-conversion %s
   2 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fsyntax-only -verify -Wsign-conversion %s
   3 // RUN: %clang_cc1 -triple x86_64-pc-windows-msvc -fsyntax-only -verify -Wsign-conversion %s
   4
   5 // PR9345: make a subgroup of -Wconversion for signedness changes
   6
   7 void test(int x) {
   8   unsigned t0 = x; // expected-warning {{implicit conversion changes signedness}}
   9   unsigned t1 = (t0 == 5 ? x : 0); // expected-warning {{operand of ? changes signedness}}
  10
  11   // Clang has special treatment for left shift of literal '1'.
  12   // Make sure there is no diagnostics.
  13   long t2 = 1LL << x;
  14 }