gcc/testsuite/gcc.dg/cpp/c2x-elifdef-2.c

/* Test #elifdef and #elifndef in C2x: erroneous usages.  */
/* { dg-do preprocess } */
/* { dg-options "-std=c2x -pedantic-errors" } */

#define A
#undef B

#elifdef A /* { dg-error "#elifdef without #if" } */
#elifdef B /* { dg-error "#elifdef without #if" } */
#elifndef A /* { dg-error "#elifndef without #if" } */
#elifndef B /* { dg-error "#elifndef without #if" } */

#if 1 /* { dg-error "-:began here" } */
#else
#elifdef A /* { dg-error "#elifdef after #else" } */
#endif

#if 1 /* { dg-error "-:began here" } */
#else
#elifdef B /* { dg-error "#elifdef after #else" } */
#endif

#if 1 /* { dg-error "-:began here" } */
#else
#elifndef A /* { dg-error "#elifndef after #else" } */
#endif

#if 1 /* { dg-error "-:began here" } */
#else
#elifndef B /* { dg-error "#elifndef after #else" } */
#endif

#if 0
#elifdef A = /* { dg-error "extra tokens at end of #elifdef directive" } */
#endif

#if 0
#elifdef B = /* { dg-error "extra tokens at end of #elifdef directive" } */
#endif

#if 0
#elifndef A = /* { dg-error "extra tokens at end of #elifndef directive" } */
#endif

#if 0
#elifndef B = /* { dg-error "extra tokens at end of #elifndef directive" } */
#endif

#if 0
#elifdef /* { dg-error "no macro name given in #elifdef directive" } */
#endif

#if 0
#elifndef /* { dg-error "no macro name given in #elifndef directive" } */
#endif

#if 0
#elifdef , /* { dg-error "macro names must be identifiers" } */
#endif

#if 0
#elifndef , /* { dg-error "macro names must be identifiers" } */
#endif