74 lines · c
1// RUN: %clang_cc1 -fsyntax-only -verify -Wfour-char-constants -pedantic -ftrigraphs %s2 3int x = 000000080; // expected-error {{invalid digit}}4 5int y = 0000\600080; // expected-error {{invalid digit}}7 8 9 10float X = 1.17549435e-38F;11float Y = 08.123456;12 13// PR225214#if -0x8000000000000000 // should not warn.15#endif16#if -01000000000000000000000 // should not warn.17#endif18#if 9223372036854775808 // expected-warning {{integer literal is too large to be represented in a signed integer type, interpreting as unsigned}}19#endif20#if 0x10000000000000000 // expected-error {{integer literal is too large to be represented in any integer type}}21#endif22 23int c[] = {24 'df', // expected-warning {{multi-character character constant}}25 '\t',26 '\\27t',28 '??!', // expected-warning {{trigraph converted to '|' character}}29 'abcd' // expected-warning {{multi-character character constant}}30};31 32// PR449933int m0 = '0';34int m1 = '\\\''; // expected-warning {{multi-character character constant}}35int m2 = '\\\\'; // expected-warning {{multi-character character constant}}36int m3 = '\\\37';38 39 40#pragma clang diagnostic ignored "-Wmultichar"41 42int d = 'df'; // no warning.43int e = 'abcd'; // still warn: expected-warning {{multi-character character constant}}44 45#pragma clang diagnostic ignored "-Wfour-char-constants"46 47int f = 'abcd'; // ignored.48 49float t0[] = {50 1.9e20f,51 1.9e-20f,52 1.9e50f, // expected-warning {{too large}}53 1.9e-50f, // expected-warning {{too small}}54 -1.9e20f,55 -1.9e-20f,56 -1.9e50f, // expected-warning {{too large}}57 -1.9e-50f // expected-warning {{too small}}58};59double t1[] = {60 1.9e50,61 1.9e-50,62 1.9e500, // expected-warning {{too large}}63 1.9e-500, // expected-warning {{too small}}64 -1.9e50,65 -1.9e-50,66 -1.9e500, // expected-warning {{too large}}67 -1.9e-500 // expected-warning {{too small}}68};69 70// PR788871double g = 1e100000000; // expected-warning {{too large}}72 73char h = '\u1234'; // expected-error {{character too large for enclosing character literal type}}74