File: mixed-constraints.cpp

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-6~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,418,812 kB
  • sloc: cpp: 5,290,827; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,900; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,892; xml: 953; cs: 573; fortran: 539
file content (18 lines) | stat: -rw-r--r-- 980 bytes parent folder | download | duplicates (5) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
 
// RUN:  %clang_cc1 -std=c++2a -verify %s

template<typename T> requires (sizeof(T) >= 4 && sizeof(T) <= 10)
// expected-note@-1{{because 'sizeof(char [20]) <= 10' (20 <= 10) evaluated to false}}
// expected-note@-2{{because 'sizeof(char) >= 4' (1 >= 4) evaluated to false}}
void foo() requires (sizeof(T) <= 8) {}
// expected-note@-1{{candidate template ignored: constraints not satisfied [with T = char]}}
// expected-note@-2{{candidate template ignored: constraints not satisfied [with T = char [9]]}}
// expected-note@-3{{candidate template ignored: constraints not satisfied [with T = char [20]]}}
// expected-note@-4{{because 'sizeof(char [9]) <= 8' (9 <= 8) evaluated to false}}

void bar() {
  foo<char>(); // expected-error{{no matching function for call to 'foo'}}
  foo<int>();
  foo<unsigned long long int>();
  foo<char[9]>(); // expected-error{{no matching function for call to 'foo'}}
  foo<char[20]>(); // expected-error{{no matching function for call to 'foo'}}
}