clang/test/Sema/vla-ext.c

   1 /* RUN: %clang_cc1 -verify=off -std=c89 %s
   2  * RUN: %clang_cc1 -verify=off -Wall -std=c89 %s
   3  * RUN: %clang_cc1 -verify -pedantic -std=c89 %s
   4  * RUN: %clang_cc1 -verify -Wvla-extension -std=c89 %s
   5  * RUN: %clang_cc1 -verify=off -Wvla-cxx-extension -std=c89 %s
   6  * RUN: %clang_cc1 -verify=off -pedantic -std=c99 %s
   7  * RUN: %clang_cc1 -verify=off -Wall -std=c99 %s
   8  * RUN: %clang_cc1 -verify=off -std=c99 -Wvla-extension %s
   9  * The next run line still issues the extension warning because VLAs are an
  10  * extension in C89, but the line after it will issue the congratulatory
  11  * diagnostic.
  12  * RUN: %clang_cc1 -verify -Wvla -std=c89 %s
  13  * RUN: %clang_cc1 -verify=wvla -Wvla -std=c99 %s
  14  */
  15
  16 /* off-no-diagnostics */
  17
  18 void func(int n) {
  19   int array[n]; /* expected-warning {{variable length arrays are a C99 feature}}
  20                    wvla-warning {{variable length array used}}
  21                  */
  22   (void)array;
  23 }
  24