1/* Test for strfmon format checking. */ 2/* Origin: Joseph Myers <jsm28@cam.ac.uk> */ 3/* { dg-do compile } */ 4/* { dg-options "-std=gnu99 -Wformat" } */ 5 6#include "format.h" 7 8void 9foo (char *s, size_t m, double d, long double ld) 10{ 11 /* Examples of valid formats from Austin Group draft 7. */ 12 strfmon (s, m, "%n", d); 13 strfmon (s, m, "%11n", d); 14 strfmon (s, m, "%#5n", d); 15 strfmon (s, m, "%=*#5n", d); 16 strfmon (s, m, "%=0#5n", d); 17 strfmon (s, m, "%^#5n", d); 18 strfmon (s, m, "%^#5.0n", d); 19 strfmon (s, m, "%^#5.4n", d); 20 strfmon (s, m, "%(#5n", d); 21 strfmon (s, m, "%!(#5n", d); 22 strfmon (s, m, "%-14#5.4n", d); 23 strfmon (s, m, "%14#5.4n", d); 24 /* Some more valid formats, including the GNU L length extension. */ 25 strfmon (s, m, "abc%-11ndef%==i%%", d, d); 26 strfmon (s, m, "%%abc%-11ndef%==Li%=%i", d, ld, d); 27 strfmon (s, m, "%Li", ld); 28 strfmon (s, m, "%11Li", ld); 29 strfmon (s, m, "%#5Li", ld); 30 strfmon (s, m, "%=*#5Li", ld); 31 strfmon (s, m, "%=0#5Li", ld); 32 strfmon (s, m, "%^#5Li", ld); 33 strfmon (s, m, "%^#5.0Li", ld); 34 strfmon (s, m, "%^#5.4Li", ld); 35 strfmon (s, m, "%(#5Li", ld); 36 strfmon (s, m, "%!(#5Li", ld); 37 strfmon (s, m, "%-14#5.4Li", ld); 38 strfmon (s, m, "%14#5.4Li", ld); 39 /* Formats with the wrong types used. */ 40 strfmon (s, m, "%Ln", d); /* { dg-warning "format" "wrong type" } */ 41 strfmon (s, m, "%n", ld); /* { dg-warning "format" "wrong type" } */ 42 /* The + and ( flags cannot be used together. */ 43 strfmon (s, m, "%+(i", d); /* { dg-warning "flag" "+ and ( flags" } */ 44 strfmon (s, m, "%(+i", d); /* { dg-warning "flag" "+ and ( flags" } */ 45 /* Although empty precision is OK for printf, it isn't here. */ 46 strfmon (s, m, "%#.5n", d); /* { dg-warning "empty" "empty left precision" } */ 47 strfmon (s, m, "%#5.n", d); /* { dg-warning "empty" "empty right precision" } */ 48 /* However, zero is a valid value for width and precisions. */ 49 strfmon (s, m, "%0#0.0n", d); 50 /* Test bogus %% constructions. */ 51 strfmon (s, m, "%^%"); /* { dg-warning "format" "bogus %%" } */ 52 strfmon (s, m, "%!%\n"); /* { dg-warning "format" "bogus %%" } */ 53 strfmon (s, m, "%5%\n"); /* { dg-warning "format" "bogus %%" } */ 54 strfmon (s, m, "%.5%\n"); /* { dg-warning "format" "bogus %%" } */ 55 strfmon (s, m, "%#5%\n"); /* { dg-warning "format" "bogus %%" } */ 56 /* Miscellaneous bogus formats. */ 57 strfmon (s, m, "%n%n", d); /* { dg-warning "matching" "too few args" } */ 58 strfmon (s, m, ""); /* { dg-warning "zero-length" "empty" } */ 59 strfmon (s, m, NULL); /* { dg-warning "null" "null format string" } */ 60 strfmon (s, m, "%"); /* { dg-warning "trailing" "tailing %" } */ 61 strfmon (s, m, "%n\0", d); /* { dg-warning "embedded" "embedded NUL" } */ 62 strfmon (s, m, "%^^n", d); /* { dg-warning "repeated" "repeated flag" } */ 63} 64