modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/va-arg-13.c (about) 1 /* derived from mozilla source code */ 2 3 #include <stdarg.h> 4 5 typedef struct { 6 void *stream; 7 va_list ap; 8 int nChar; 9 } ScanfState; 10 11 void dummy (va_list vap) 12 { 13 if (va_arg (vap, int) != 1234) abort(); 14 return; 15 } 16 17 void test (int fmt, ...) 18 { 19 ScanfState state, *statep; 20 21 statep = &state; 22 23 va_start (statep->ap, fmt); 24 dummy (statep->ap); 25 va_end (statep->ap); 26 27 va_start (state.ap, fmt); 28 dummy (state.ap); 29 va_end (state.ap); 30 31 return; 32 } 33 34 int main (void) 35 { 36 test (456, 1234); 37 exit (0); 38 }