| 1 | #define _GNU_SOURCE 1 |
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| 2 | #include <wchar.h> |
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| 3 | #include <stdio.h> |
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| 4 | #include <string.h> |
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| 5 | #include <wctype.h> |
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| 6 | #include <libc-diag.h> |
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| 7 | |
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| 8 | static int |
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| 9 | do_test (void) |
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| 10 | { |
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| 11 | int result = 0; |
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| 12 | char buf[100]; |
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| 13 | wchar_t tmp[3]; |
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| 14 | tmp[0] = '8'; |
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| 15 | tmp[1] = '1'; |
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| 16 | tmp[2] = 0; |
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| 17 | |
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| 18 | /* GCC does not know the result of wcstof so cannot see that the |
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| 19 | snprintf output is not truncated. */ |
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| 20 | DIAG_PUSH_NEEDS_COMMENT; |
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| 21 | #if __GNUC_PREREQ (7, 0) |
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| 22 | DIAG_IGNORE_NEEDS_COMMENT (7.0, "-Wformat-truncation" ); |
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| 23 | #endif |
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| 24 | snprintf (s: buf, maxlen: 100, format: "%S = %f" , tmp, wcstof (tmp, NULL)); |
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| 25 | DIAG_POP_NEEDS_COMMENT; |
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| 26 | printf (format: "\"%s\" -> %s\n" , buf, |
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| 27 | strcmp (buf, "81 = 81.000000" ) == 0 ? "okay" : "buggy" ); |
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| 28 | result |= strcmp (buf, "81 = 81.000000" ) != 0; |
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| 29 | |
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| 30 | return result; |
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| 31 | } |
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| 32 | |
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| 33 | #include <support/test-driver.c> |
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| 34 | |
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