81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
/* Conformance Test 17.7.0.1: Verification of fgets function, text stream */
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#include <stdio.h>
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main ()
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{
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FILE *f1;
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int i;
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char string [80] = ""; /* initialize input string to null string */
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char *strPtr;
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f1 = fopen ("3/tmp", "w+"); /* create text file to work on */
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if (f1 == NULL)
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goto Fail1;
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i = fputs ("Every good boy deserves favor\n", f1);
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if (i)
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goto Fail2;
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rewind (f1); /* test reading until '\n' seen */
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strPtr = fgets (string, 100, f1);
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if (strPtr == NULL)
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goto Fail;
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if (strcmp ("Every good boy deserves favor\n", string))
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goto Fail;
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fgetc(f1); /* force an EOF condition */
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strPtr = fgets (string, 100, f1); /* test reading with EOF seen before */
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if (strPtr != NULL) /* any other characters */
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goto Fail;
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if (! (feof (f1)) )
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goto Fail;
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if (strcmp ("Every good boy deserves favor\n", string))
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goto Fail;
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rewind (f1); /* test reading until n-1 chars seen */
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strPtr = fgets (string, 15, f1);
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if (strPtr == NULL)
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goto Fail;
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if (strcmp ("Every good boy", string))
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goto Fail;
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strPtr = fgets (string, 17, f1); /* ensure fgets moves internal file */
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if (strPtr == NULL) /* pointer */
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goto Fail;
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if (strcmp (" deserves favor\n", string))
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goto Fail;
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fgetc(f1); /* force an EOF condition */
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strPtr = fgets (string, 100, f1); /* test reading with EOF seen before */
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if (strPtr != NULL) /* any other characters */
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goto Fail;
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if (! (feof (f1)) )
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goto Fail;
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if (strcmp (" deserves favor\n", string))
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goto Fail;
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i = fclose (f1); /* close file and quit */
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if (i)
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goto Fail3;
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printf ("Passed Conformance Test 17.7.0.1\n");
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return;
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Fail:
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printf ("Failed Conformance Test 17.7.0.1\n");
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return;
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Fail1:
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printf ("Unable to open temp file for Conformance Test 17.7.0.1\n");
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return;
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Fail2:
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printf ("Unable to write to temp file for Conformance Test 17.7.0.1\n");
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return;
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Fail3:
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printf ("Unable to close temp file for Conformance Test 17.7.0.1\n");
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return;
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}
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