| Last change
 on this file since 108b2c7 was             c248b39, checked in by Andrew Beach <ajbeach@…>, 16 months ago | 
        
          | 
Unlabelled breaks were not targetting the correct enclosing control structures. Also added a test and improved error messages.
 | 
        
          | 
              
Property                 mode
 set to                 100644 | 
        
          | File size:
            607 bytes | 
      
      
| Rev | Line |  | 
|---|
| [c248b39] | 1 | // Test breaking to unusual (non-loop, non-switch) statements. | 
|---|
|  | 2 |  | 
|---|
|  | 3 | #include <fstream.hfa> | 
|---|
|  | 4 |  | 
|---|
|  | 5 | void breakTargetLabels() { | 
|---|
|  | 6 | sout | "if"; | 
|---|
|  | 7 | Lif: if ( true ) { | 
|---|
|  | 8 | break Lif; | 
|---|
|  | 9 | sout | "!"; | 
|---|
|  | 10 | } | 
|---|
|  | 11 | sout | "end" | nl; | 
|---|
|  | 12 |  | 
|---|
|  | 13 | sout | "block"; | 
|---|
|  | 14 | Lblock: { | 
|---|
|  | 15 | break Lblock; | 
|---|
|  | 16 | sout | "!"; | 
|---|
|  | 17 | } | 
|---|
|  | 18 | sout | "end" | nl; | 
|---|
|  | 19 | } | 
|---|
|  | 20 |  | 
|---|
|  | 21 | void breakSkipsUnlabelled() { | 
|---|
|  | 22 | sout | "unlabelled"; | 
|---|
|  | 23 | for (int i = 0 ; i < 2 ; ++i) { | 
|---|
|  | 24 | sout | "loop"; | 
|---|
|  | 25 | block: { | 
|---|
|  | 26 | break; | 
|---|
|  | 27 | sout | "!"; | 
|---|
|  | 28 | // Prevent unused label warning. | 
|---|
|  | 29 | if ( false ) break block; | 
|---|
|  | 30 | } | 
|---|
|  | 31 | } | 
|---|
|  | 32 | sout | "end" | nl; | 
|---|
|  | 33 | } | 
|---|
|  | 34 |  | 
|---|
|  | 35 | int main() { | 
|---|
|  | 36 | sout | nlOff; | 
|---|
|  | 37 |  | 
|---|
|  | 38 | breakTargetLabels(); | 
|---|
|  | 39 | sout | nl; | 
|---|
|  | 40 | breakSkipsUnlabelled(); | 
|---|
|  | 41 | } | 
|---|
       
      
  Note:
 See   
TracBrowser
 for help on using the repository browser.