55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -verify %s
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -ffp-exception-behavior=strict -DSTRICT -fsyntax-only -verify %s
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -x c++ -DCPP -DSTRICT -ffp-exception-behavior=strict -fsyntax-only -verify %s
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#ifdef CPP
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#define CONST constexpr
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#else
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#define CONST const
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#endif
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#pragma STDC FENV_ACCESS IN_BETWEEN // expected-warning {{expected 'ON' or 'OFF' or 'DEFAULT' in pragma}}
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#pragma STDC FENV_ACCESS OFF
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float func_04(int x, float y) {
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if (x)
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return y + 2;
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#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}}
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return x + y;
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}
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#pragma STDC FENV_ACCESS ON
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int main() {
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CONST float one = 1.0F ;
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CONST float three = 3.0F ;
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CONST float four = 4.0F ;
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CONST float frac_ok = one/four;
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#if !defined(CPP)
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//expected-note@+2 {{declared here}}
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#endif
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CONST float frac = one/three;
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CONST double d = one;
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CONST int not_too_big = 255;
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CONST float fnot_too_big = not_too_big;
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CONST int too_big = 0x7ffffff0;
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#if defined(CPP)
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//expected-warning@+2{{implicit conversion}}
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#endif
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CONST float fbig = too_big; // inexact
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#if !defined(CPP)
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#define static_assert _Static_assert
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#endif
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enum {
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e1 = (int)one, e3 = (int)three, e4 = (int)four, e_four_quarters = (int)(frac_ok * 4)
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};
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static_assert(e1 == 1 && e3 == 3 && e4 == 4 && e_four_quarters == 1, "");
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enum {
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#if !defined(CPP)
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// expected-error@+2 {{not an integer constant expression}} expected-note@+2 {{is not a constant expression}}
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#endif
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e_three_thirds = (int)(frac * 3)
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};
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if (one <= four) return 0;
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return -1;
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}
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