abseil-duration-subtraction.cpp
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// RUN: %check_clang_tidy %s abseil-duration-subtraction %t -- -- -I %S/Inputs
#include "absl/time/time.h"
void f() {
double x;
absl::Duration d, d1, d2;
x = absl::ToDoubleSeconds(d) - 1.0;
// CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
// CHECK-FIXES: absl::ToDoubleSeconds(d - absl::Seconds(1))
x = absl::ToDoubleSeconds(d) - absl::ToDoubleSeconds(d1);
// CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
// CHECK-FIXES: absl::ToDoubleSeconds(d - d1);
x = absl::ToDoubleSeconds(d) - 6.5 - 8.0;
// CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
// CHECK-FIXES: absl::ToDoubleSeconds(d - absl::Seconds(6.5)) - 8.0;
x = absl::ToDoubleHours(d) - 1.0;
// CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
// CHECK-FIXES: absl::ToDoubleHours(d - absl::Hours(1))
x = absl::ToDoubleMinutes(d) - 1;
// CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
// CHECK-FIXES: absl::ToDoubleMinutes(d - absl::Minutes(1))
x = absl::ToDoubleMilliseconds(d) - 9;
// CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
// CHECK-FIXES: absl::ToDoubleMilliseconds(d - absl::Milliseconds(9))
x = absl::ToDoubleMicroseconds(d) - 9;
// CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
// CHECK-FIXES: absl::ToDoubleMicroseconds(d - absl::Microseconds(9))
x = absl::ToDoubleNanoseconds(d) - 42;
// CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
// CHECK-FIXES: absl::ToDoubleNanoseconds(d - absl::Nanoseconds(42))
// We can rewrite the argument of the duration conversion
#define THIRTY absl::Seconds(30)
x = absl::ToDoubleSeconds(THIRTY) - 1.0;
// CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
// CHECK-FIXES: absl::ToDoubleSeconds(THIRTY - absl::Seconds(1))
#undef THIRTY
// Some other contexts
if (absl::ToDoubleSeconds(d) - 1.0 > 10) {}
// CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
// CHECK-FIXES: if (absl::ToDoubleSeconds(d - absl::Seconds(1)) > 10) {}
// A nested occurrence
x = absl::ToDoubleSeconds(d) - absl::ToDoubleSeconds(absl::Seconds(5));
// CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
// CHECK-FIXES: absl::ToDoubleSeconds(d - absl::Seconds(5))
x = absl::ToDoubleSeconds(d) - absl::ToDoubleSeconds(absl::Seconds(absl::ToDoubleSeconds(d1)));
// CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
// CHECK-FIXES: absl::ToDoubleSeconds(d - absl::Seconds(absl::ToDoubleSeconds(d1)))
// These should not match
x = 5 - 6;
x = 4 - absl::ToDoubleSeconds(d) - 6.5 - 8.0;
x = absl::ToDoubleSeconds(d) + 1.0;
x = absl::ToDoubleSeconds(d) * 1.0;
x = absl::ToDoubleSeconds(d) / 1.0;
#define MINUS_FIVE(z) absl::ToDoubleSeconds(z) - 5
x = MINUS_FIVE(d);
#undef MINUS_FIVE
}