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111
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1 /* Test for warnings for extra format arguments being disabled by
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2 -Wno-format-extra-args. Test which warnings still apply with $
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3 operand numbers. */
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4 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
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5 /* { dg-do compile } */
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6 /* { dg-options "-std=gnu99 -Wformat -Wno-format-extra-args" } */
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7
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8 #include "format.h"
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9
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10 void
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11 foo (int i, int *ip, va_list va)
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12 {
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13 printf ("%3$d%1$d", i, i, i); /* { dg-warning "before used" "unused $ operand" } */
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14 printf ("%2$d%1$d", i, i, i);
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15 vprintf ("%3$d%1$d", va); /* { dg-warning "before used" "unused $ operand" } */
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16 /* With scanf formats, gaps in the used arguments are allowed only if the
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17 arguments are all pointers. In such a case, should only give the lesser
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18 warning about unused arguments rather than the more serious one about
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19 argument gaps. */
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20 scanf ("%3$d%1$d", ip, ip, ip);
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21 /* If there are non-pointer arguments unused at the end, this is also OK. */
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22 scanf ("%3$d%1$d", ip, ip, ip, i);
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23 scanf ("%3$d%1$d", ip, i, ip); /* { dg-warning "before used" "unused $ scanf non-pointer operand" } */
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24 /* Can't check the arguments in the vscanf case, so should suppose the
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25 lesser problem. */
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26 vscanf ("%3$d%1$d", va);
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27 }
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