243 lines
6.1 KiB
C++
243 lines
6.1 KiB
C++
/* Special Conformance Test 17.6.0.1: Verification of fgetc, getc, getchar, */
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/* and ungetc with standard input */
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/* */
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/* The first action of the test is to verify that standard input is working. */
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/* The tester will be prompted for a string three times (once each for fgetc,*/
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/* getc, and getchar); this string will then be echoed to standard out and to*/
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/* standard error out. The tester needs to verify that the output string is */
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/* correct. */
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/* */
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/* The test will then redirect standard input to a temporary file created on */
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/* the work prefix. The tester needs to verify that the characters sent to */
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/* standard output and standard error output are the lower case alphabetic */
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/* characters. */
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/* */
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/* Finally, standard input is reset to the keyboard. The tester will be */
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/* prompted for a new string to be entered from the keyboard. The tester */
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/* needs to verify that the string is correctly echoed to the screen. */
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#include <stdlib.h>
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#include <stdio.h>
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int main (void)
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{
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int i, j;
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char s [255], ch;
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FILE *f1, *saveStdin;
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/* This part of the test that standard input and standard output are working */
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printf ("Please enter a string\n"); /* test fgetc with standard in */
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j = 0;
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while ((i = fgetc (stdin)) != '\n')
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{
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if (i == EOF)
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goto Fail3;
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s [j++] = i;
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}
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s [j] = '\0';
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printf ("The string entered is:\n");
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i = fputs (s, stdout);
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if (i)
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goto Fail4;
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printf ("\n");
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i = fputs (s, stderr);
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if (i)
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goto Fail5;
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printf ("\n");
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printf ("Please enter a string\n"); /* test getc with standard in */
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j = 0;
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while ((i = getc (stdin)) != '\n')
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{
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if (i == EOF)
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goto Fail3;
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s [j++] = i;
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}
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s [j] = '\0';
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printf ("The string entered is:\n");
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i = fputs (s, stdout);
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if (i)
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goto Fail4;
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printf ("\n");
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i = fputs (s, stderr);
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if (i)
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goto Fail5;
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printf ("\n");
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printf ("Please enter a string\n"); /* test getchar */
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j = 0;
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while ( (i = getchar ()) != '\n' )
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{
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if (i == EOF)
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goto Fail3;
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s [j++] = i;
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}
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s [j] = '\0';
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printf ("The string entered is:\n");
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i = fputs (s, stdout);
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if (i)
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goto Fail4;
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printf ("\n");
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i = fputs (s, stderr);
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if (i)
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goto Fail5;
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printf ("\n");
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/* Now test fgetc, getc, and getchar by redirecting standard input. */
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f1 = fopen ("3/tmp", "w"); /* create new file */
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if (f1 == NULL)
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goto Fail;
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for (ch = 'a', i = 0; i < 26; i++)
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{
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j = fputc (ch, f1);
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if ( (char) j != ch )
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goto Fail2;
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ch++;
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}
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j = fputc ('\n', f1);
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if (j != '\n')
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goto Fail2;
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saveStdin = stdin;
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stdin = freopen ("3/tmp", "r", f1); /* reassign standard in */
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if (stdin == NULL)
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goto Fail1;
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j = 0; /* read file with fgetc */
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while ( (i = fgetc (stdin)) != EOF) {
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putchar(i);
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s [j++] = i;
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}
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s [j] = '\0';
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if (! feof (stdin) )
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goto Fail3;
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printf ("The string read from the temp file is:\n");
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i = fputs (s, stdout);
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if (i)
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goto Fail4;
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i = fputs (s, stderr);
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if (i)
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goto Fail5;
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rewind (stdin); /* read file with getc */
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j = 0;
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while ( (i = getc (stdin)) != EOF)
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s [j++] = i;
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s [j] = '\0';
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if (! feof (stdin) )
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goto Fail3;
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printf ("The string read from the temp file is:\n");
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i = fputs (s, stdout);
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if (i)
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goto Fail4;
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i = fputs (s, stderr);
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if (i)
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goto Fail5;
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rewind (stdin); /* read file with getchar */
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j = 0;
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while ( (i = getchar ()) != EOF)
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s [j++] = i;
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s [j] = '\0';
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if (! feof (stdin) )
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goto Fail3;
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printf ("The string read from the temp file is:\n");
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i = fputs (s, stdout);
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if (i)
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goto Fail4;
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i = fputs (s, stderr);
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if (i)
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goto Fail5;
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/* Now reset standard input and ensure it's ok. */
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stdin = saveStdin; /* reassign standard in */
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printf ("Please enter a string\n"); /* read standard in with fgetc */
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j = 0;
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while ((i = fgetc (stdin)) != '\n')
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{
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if (i == EOF)
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goto Fail3;
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s [j++] = i;
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}
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s [j] = '\0';
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printf ("The string entered is:\n");
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i = fputs (s, stdout);
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if (i)
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goto Fail4;
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printf ("\n");
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i = fputs (s, stderr);
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if (i)
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goto Fail5;
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printf ("\n");
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printf ("Please enter a string\n"); /* read standard in with getc */
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j = 0;
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while ((i = getc (stdin)) != '\n')
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{
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if (i == EOF)
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goto Fail3;
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s [j++] = i;
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}
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s [j] = '\0';
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printf ("The string entered is:\n");
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i = fputs (s, stdout);
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if (i)
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goto Fail4;
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printf ("\n");
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i = fputs (s, stderr);
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if (i)
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goto Fail5;
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printf ("\n");
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printf ("Please enter a string\n"); /* read standard in with getchar */
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j = 0;
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while ( (i = getchar ()) != '\n' )
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{
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if (i == EOF)
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goto Fail3;
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s [j++] = i;
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}
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s [j] = '\0';
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printf ("The string entered is:\n");
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i = fputs (s, stdout);
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if (i)
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goto Fail4;
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printf ("\n");
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i = fputs (s, stderr);
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if (i)
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goto Fail5;
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printf ("\n");
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return 0;
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Fail:
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perror ("File open failure in Special Conformance Test 17.6.0.1 ");
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exit (0);
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Fail1:
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printf ("Error when reopening stream\n");
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exit (0);
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Fail2:
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printf ("Error when writing file\n");
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exit (0);
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Fail3:
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printf ("Error when reading from standard in\n");
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exit (0);
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Fail4:
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printf ("Error when writing to standard out\n");
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exit (0);
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Fail5:
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printf ("Error when writing to standard error out\n");
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exit (0);
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}
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