| // RUN: not %clang_cc1 -fsyntax-only -fmessage-length 75 -o /dev/null -x c < %s 2>&1 | FileCheck %s -strict-whitespace | 
 | // REQUIRES: utf8-capable-terminal | 
 |  | 
 | // Test case for the text diagnostics source column conversion crash. | 
 |  | 
 | // This test case tries to check the error diagnostic message printer, which is | 
 | // responsible to create the code snippet shorter than the message-length (in | 
 | // number of columns.) | 
 | // | 
 | // The error diagnostic message printer should be able to handle the non-ascii | 
 | // characters without any segmentation fault or assertion failure.  If your | 
 | // changes to clang frontend crashes this case, it is likely that you are mixing | 
 | // column index with byte index which are two totally different concepts. | 
 |  | 
 | // NOTE: This file is encoded in UTF-8 and intentionally contains some | 
 | // non-ASCII characters. | 
 |  | 
 | __attribute__((format(printf, 1, 2))) | 
 | extern int printf(const char *fmt, ...); | 
 |  | 
 | void test1(Unknown* b);  // αααα αααα αααα αααα αααα αααα αααα αααα αααα αααα αααα | 
 | // CHECK: unknown type name 'Unknown' | 
 | // CHECK-NEXT: void test1(Unknown* b);  // αααα αααα αααα αααα αααα αααα αααα ααα... | 
 | // CHECK-NEXT: {{^           \^$}} | 
 |  | 
 | void test2(Unknown* b);  // αααα αααα αααα αααα αααα αααα αααα αααα αααα | 
 |  | 
 | // CHECK: unknown type name 'Unknown' | 
 | // CHECK-NEXT: void test2(Unknown* b);  // αααα αααα αααα αααα αααα αααα αααα αααα αααα | 
 | // CHECK-NEXT: {{^           \^$}} | 
 |  | 
 | void test3() { | 
 |    /* αααα αααα αααα αααα αααα αααα αααα αααα αααα αααα */ printf("%d", "s"); | 
 | } | 
 | // CHECK:       format specifies type 'int' but the argument has | 
 | // CHECK:       type 'char *' | 
 | // CHECK-NEXT:   ...αααα αααα αααα αααα αααα αααα αααα αααα αααα */ printf("%d", "s"); | 
 | // CHECK-NEXT: {{^                                                             ~~   \^~~$}} | 
 | // CHECK-NEXT: {{^                                                             %s$}} |