41 lines
735 B
C
41 lines
735 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <libc-internal.h>
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int
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main(int arc, char *argv[])
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{
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int res;
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unsigned int val;
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FILE *fp = fopen ("/dev/null", "r");
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val = 0;
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res = fscanf(fp, "%n", &val);
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printf("Result of fscanf %%n = %d\n", res);
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printf("Scanned format = %d\n", val);
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/* We're testing exactly the case the warning is for. */
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DIAG_PUSH_NEEDS_COMMENT;
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DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat-zero-length");
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res = fscanf(fp, "");
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DIAG_POP_NEEDS_COMMENT;
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printf("Result of fscanf \"\" = %d\n", res);
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if (res != 0)
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abort ();
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res = fscanf(fp, "BLURB");
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printf("Result of fscanf \"BLURB\" = %d\n", res);
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if (res >= 0)
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abort ();
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fclose (fp);
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return 0;
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return 0;
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}
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