forked from OSchip/llvm-project
75 lines
3.2 KiB
C
75 lines
3.2 KiB
C
// RUN: %clang_cc1 -verify -fsyntax-only %s -Wdouble-promotion
|
|
|
|
float ReturnFloatFromDouble(double d) {
|
|
return d;
|
|
}
|
|
|
|
float ReturnFloatFromLongDouble(long double ld) {
|
|
return ld;
|
|
}
|
|
|
|
double ReturnDoubleFromLongDouble(long double ld) {
|
|
return ld;
|
|
}
|
|
|
|
double ReturnDoubleFromFloat(float f) {
|
|
return f; //expected-warning{{implicit conversion increases floating-point precision: 'float' to 'double'}}
|
|
}
|
|
|
|
long double ReturnLongDoubleFromFloat(float f) {
|
|
return f; //expected-warning{{implicit conversion increases floating-point precision: 'float' to 'long double'}}
|
|
}
|
|
|
|
long double ReturnLongDoubleFromDouble(double d) {
|
|
return d; //expected-warning{{implicit conversion increases floating-point precision: 'double' to 'long double'}}
|
|
}
|
|
|
|
void Assignment(float f, double d, long double ld) {
|
|
d = f; //expected-warning{{implicit conversion increases floating-point precision: 'float' to 'double'}}
|
|
ld = f; //expected-warning{{implicit conversion increases floating-point precision: 'float' to 'long double'}}
|
|
ld = d; //expected-warning{{implicit conversion increases floating-point precision: 'double' to 'long double'}}
|
|
f = d;
|
|
f = ld;
|
|
d = ld;
|
|
}
|
|
|
|
extern void DoubleParameter(double);
|
|
extern void LongDoubleParameter(long double);
|
|
|
|
void ArgumentPassing(float f, double d) {
|
|
DoubleParameter(f); // expected-warning{{implicit conversion increases floating-point precision: 'float' to 'double'}}
|
|
LongDoubleParameter(f); // expected-warning{{implicit conversion increases floating-point precision: 'float' to 'long double'}}
|
|
LongDoubleParameter(d); // expected-warning{{implicit conversion increases floating-point precision: 'double' to 'long double'}}
|
|
}
|
|
|
|
void BinaryOperator(float f, double d, long double ld) {
|
|
f = f * d; // expected-warning{{implicit conversion increases floating-point precision: 'float' to 'double'}}
|
|
f = d * f; // expected-warning{{implicit conversion increases floating-point precision: 'float' to 'double'}}
|
|
f = f * ld; // expected-warning{{implicit conversion increases floating-point precision: 'float' to 'long double'}}
|
|
f = ld * f; // expected-warning{{implicit conversion increases floating-point precision: 'float' to 'long double'}}
|
|
d = d * ld; // expected-warning{{implicit conversion increases floating-point precision: 'double' to 'long double'}}
|
|
d = ld * d; // expected-warning{{implicit conversion increases floating-point precision: 'double' to 'long double'}}
|
|
}
|
|
|
|
void MultiplicationAssignment(float f, double d, long double ld) {
|
|
d *= f; // expected-warning{{implicit conversion increases floating-point precision: 'float' to 'double'}}
|
|
ld *= f; // expected-warning{{implicit conversion increases floating-point precision: 'float' to 'long double'}}
|
|
ld *= d; // expected-warning{{implicit conversion increases floating-point precision: 'double' to 'long double'}}
|
|
|
|
// FIXME: These cases should produce warnings as above.
|
|
f *= d;
|
|
f *= ld;
|
|
d *= ld;
|
|
}
|
|
|
|
// FIXME: As with a binary operator, the operands to the conditional operator are
|
|
// converted to a common type and should produce a warning.
|
|
void ConditionalOperator(float f, double d, long double ld, int i) {
|
|
f = i ? f : d;
|
|
f = i ? d : f;
|
|
f = i ? f : ld;
|
|
f = i ? ld : f;
|
|
d = i ? d : ld;
|
|
d = i ? ld : d;
|
|
}
|