Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/format/no-exargs-2.c @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | |
| children |
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| 68:561a7518be6b | 111:04ced10e8804 |
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| 1 /* Test for warnings for extra format arguments being disabled by | |
| 2 -Wno-format-extra-args. Test which warnings still apply with $ | |
| 3 operand numbers. */ | |
| 4 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */ | |
| 5 /* { dg-do compile } */ | |
| 6 /* { dg-options "-std=gnu99 -Wformat -Wno-format-extra-args" } */ | |
| 7 | |
| 8 #include "format.h" | |
| 9 | |
| 10 void | |
| 11 foo (int i, int *ip, va_list va) | |
| 12 { | |
| 13 printf ("%3$d%1$d", i, i, i); /* { dg-warning "before used" "unused $ operand" } */ | |
| 14 printf ("%2$d%1$d", i, i, i); | |
| 15 vprintf ("%3$d%1$d", va); /* { dg-warning "before used" "unused $ operand" } */ | |
| 16 /* With scanf formats, gaps in the used arguments are allowed only if the | |
| 17 arguments are all pointers. In such a case, should only give the lesser | |
| 18 warning about unused arguments rather than the more serious one about | |
| 19 argument gaps. */ | |
| 20 scanf ("%3$d%1$d", ip, ip, ip); | |
| 21 /* If there are non-pointer arguments unused at the end, this is also OK. */ | |
| 22 scanf ("%3$d%1$d", ip, ip, ip, i); | |
| 23 scanf ("%3$d%1$d", ip, i, ip); /* { dg-warning "before used" "unused $ scanf non-pointer operand" } */ | |
| 24 /* Can't check the arguments in the vscanf case, so should suppose the | |
| 25 lesser problem. */ | |
| 26 vscanf ("%3$d%1$d", va); | |
| 27 } |