1 // RUN: not %clang_cc1 -fsyntax-only -fmessage-length 75 -o /dev/null -x c < %s 2>&1 | FileCheck %s -strict-whitespace 2 // REQUIRES: utf8-capable-terminal 3 4 // Test case for the text diagnostics source column conversion crash. 5 6 // This test case tries to check the error diagnostic message printer, which is 7 // responsible to create the code snippet shorter than the message-length (in 8 // number of columns.) 9 // 10 // The error diagnostic message printer should be able to handle the non-ascii 11 // characters without any segmentation fault or assertion failure. If your 12 // changes to clang frontend crashes this case, it is likely that you are mixing 13 // column index with byte index which are two totally different concepts. 14 15 // NOTE: This file is encoded in UTF-8 and intentionally contains some 16 // non-ASCII characters. 17 18 __attribute__((format(printf, 1, 2))) 19 extern int printf(const char *fmt, ...); 20 21 void test1(Unknown* b); // αααα αααα αααα αααα αααα αααα αααα αααα αααα αααα αααα 22 // CHECK: unknown type name 'Unknown' 23 // CHECK-NEXT: void test1(Unknown* b); // αααα αααα αααα αααα αααα αααα αααα ααα... 24 // CHECK-NEXT: {{^ \^$}} 25 26 void test2(Unknown* b); // αααα αααα αααα αααα αααα αααα αααα αααα αααα 27 28 // CHECK: unknown type name 'Unknown' 29 // CHECK-NEXT: void test2(Unknown* b); // αααα αααα αααα αααα αααα αααα αααα αααα αααα 30 // CHECK-NEXT: {{^ \^$}} 31 test3()32 void test3() { 33 /* αααα αααα αααα αααα αααα αααα αααα αααα αααα αααα */ printf("%d", "s"); 34 } 35 // CHECK: format specifies type 'int' but the argument has 36 // CHECK: type 'char *' 37 // CHECK-NEXT: ...αααα αααα αααα αααα αααα αααα αααα αααα αααα */ printf("%d", "s"); 38 // CHECK-NEXT: {{^ ~~ \^~~$}} 39 // CHECK-NEXT: {{^ %s$}} 40