1 // RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -verify %s 2 // RUN: %clang_cc1 -triple x86_64-linux-gnu -ffp-exception-behavior=strict -DSTRICT -fsyntax-only -verify %s 3 // RUN: %clang_cc1 -triple x86_64-linux-gnu -x c++ -DCPP -DSTRICT -ffp-exception-behavior=strict -fsyntax-only -verify %s 4 #ifdef CPP 5 #define CONST constexpr 6 #else 7 #define CONST const 8 #endif 9 10 #pragma STDC FENV_ACCESS IN_BETWEEN // expected-warning {{expected 'ON' or 'OFF' or 'DEFAULT' in pragma}} 11 12 #pragma STDC FENV_ACCESS OFF 13 func_04(int x,float y)14float func_04(int x, float y) { 15 if (x) 16 return y + 2; 17 #pragma STDC FENV_ACCESS ON // expected-error{{'#pragma STDC FENV_ACCESS' can only appear at file scope or at the start of a compound statement}} 18 return x + y; 19 } 20 21 #pragma STDC FENV_ACCESS ON main(void)22int main(void) { 23 CONST float one = 1.0F ; 24 CONST float three = 3.0F ; 25 CONST float four = 4.0F ; 26 CONST float frac_ok = one/four; 27 #if !defined(CPP) 28 //expected-note@+2 {{declared here}} 29 #endif 30 CONST float frac = one/three; 31 CONST double d = one; 32 CONST int not_too_big = 255; 33 CONST float fnot_too_big = not_too_big; 34 CONST int too_big = 0x7ffffff0; 35 #if defined(CPP) 36 //expected-warning@+2{{implicit conversion}} 37 #endif 38 CONST float fbig = too_big; // inexact 39 #if !defined(CPP) 40 #define static_assert _Static_assert 41 #endif 42 enum { 43 e1 = (int)one, e3 = (int)three, e4 = (int)four, e_four_quarters = (int)(frac_ok * 4) 44 }; 45 static_assert(e1 == 1 && e3 == 3 && e4 == 4 && e_four_quarters == 1, ""); 46 enum { 47 #if !defined(CPP) 48 // expected-error@+2 {{not an integer constant expression}} expected-note@+2 {{is not a constant expression}} 49 #endif 50 e_three_thirds = (int)(frac * 3) 51 }; 52 if (one <= four) return 0; 53 return -1; 54 } 55