clang/test/Preprocessor/skip-empty-lines.c

   1   int  a ;
   2   int  b ;
   3 // A single empty line
   4   int  c ;
   5 /*
   6
   7 more than 8 empty lines
   8 (forces a line marker instead of newline padding)
   9
  10
  11
  12
  13 */
  14   int  d ;
  15
  16 // RUN: %clang_cc1 -E %s 2>&1 | FileCheck %s --strict-whitespace --check-prefix=LINEMARKERS
  17 // RUN: %clang_cc1 -E -P %s 2>&1 | FileCheck %s --strict-whitespace --check-prefix=COLSONLY
  18 // RUN: %clang_cc1 -E -fminimize-whitespace %s 2>&1 | FileCheck %s --strict-whitespace --check-prefix=MINCOL
  19 // RUN: %clang_cc1 -E -P -fminimize-whitespace %s 2>&1 | FileCheck %s --strict-whitespace --check-prefix=MINWS
  20
  21 // Check behavior after varying number of lines without emitted tokens.
  22
  23 // LINEMARKERS:      {{^}}# 1 "{{.*}}skip-empty-lines.c" 2
  24 // LINEMARKERS-NEXT: {{^}}  int a ;
  25 // LINEMARKERS-NEXT: {{^}}  int b ;
  26 // LINEMARKERS-EMPTY:
  27 // LINEMARKERS-NEXT: {{^}}  int c ;
  28 // LINEMARKERS-NEXT: {{^}}# 14 "{{.*}}skip-empty-lines.c"
  29 // LINEMARKERS-NEXT: {{^}}  int d ;
  30
  31 // COLSONLY:      {{^}}  int a ;
  32 // COLSONLY-NEXT: {{^}}  int b ;
  33 // COLSONLY-NEXT: {{^}}  int c ;
  34 // COLSONLY-NEXT: {{^}}  int d ;
  35
  36 // MINCOL:      {{^}}# 1 "{{.*}}skip-empty-lines.c" 2
  37 // MINCOL-NEXT: {{^}}int a;
  38 // MINCOL-NEXT: {{^}}int b;
  39 // MINCOL-EMPTY:
  40 // MINCOL-NEXT: {{^}}int c;
  41 // MINCOL-NEXT: {{^}}# 14 "{{.*}}skip-empty-lines.c"
  42 // MINCOL-NEXT: {{^}}int d;
  43
  44 // MINWS: {{^}}int a;int b;int c;int d;
  45