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// RUN: %clang_cc1 %s -verify -Wno-constant-conversion
// RUN: %clang_cc1 %s -verify -Wno-constant-conversion -Wno-implicit-int-float-conversion -Wimplicit-const-int-float-conversion
// RUN: %clang_cc1 %s -DNONCONST=1 -verify -Wno-constant-conversion -Wimplicit-int-float-conversion
#ifdef NONCONST
long testReturn(long a, float b) {
return a + b; // expected-warning {{implicit conversion from 'long' to 'float' may lose precision}}
}
#endif
void testAssignment() {
float f = 222222;
double b = 222222222222L;
float ff = 222222222222L; // expected-warning {{changes value from 222222222222 to 222222221312}}
float ffff = 222222222222UL; // expected-warning {{changes value from 222222222222 to 222222221312}}
long l = 222222222222L;
#ifdef NONCONST
float fff = l; // expected-warning {{implicit conversion from 'long' to 'float' may lose precision}}
#endif
}
void testExpression() {
float a = 0.0f;
float b = 222222222222L + a; // expected-warning {{changes value from 222222222222 to 222222221312}}
float g = 22222222 + 22222222;
float c = 22222222 + 22222223; // expected-warning {{implicit conversion from 'int' to 'float' changes value from 44444445 to 44444444}}
int i = 0;
#ifdef NONCONST
float d = i + a; // expected-warning {{implicit conversion from 'int' to 'float' may lose precision}}
#endif
double e = 0.0;
double f = i + e;
}
void testCNarrowing() {
// Since this is a C file. C++11 narrowing is not in effect.
// In this case, we should issue warnings.
float a = {222222222222L}; // expected-warning {{changes value from 222222222222 to 222222221312}}
long b = 222222222222L;
#ifdef NONCONST
float c = {b}; // expected-warning {{implicit conversion from 'long' to 'float' may lose precision}}
#endif
}
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