ORCA-C/Tests/Conformance/C17.8.0.1.CC
Stephen Heumann 91d33b586d Fix various C99+ conformance issues and bugs in test cases.
The main changes made to most tests are:

*Declarations always include explicit types, not relying on implicit int. The declaration of main in most test programs is changed to be "int main (void) {...}", adding an explicit return type and a prototype. (There are still some non-prototyped functions, though.)

*Functions are always declared before use, either by including a header or by providing a declaration for the specific function. The latter approach is usually used for printf, to avoid requiring ORCA/C to process stdio.h when compiling every test case (which might make test runs noticeably slower).

*Make all return statements in non-void functions (e.g. main) return a value.

*Avoid some instances of undefined behavior and type errors in printf and scanf calls.

Several miscellaneous bugs are also fixed.

There are still a couple test cases that intentionally rely on the C89 behavior, to ensure it still works.
2022-10-17 20:17:24 -05:00

91 lines
3.2 KiB
C++

/* Conformance Test 17.8.0.1: Verification of fscanf, d format code */
#include <stdio.h>
int main (void)
{
FILE *f1;
short i1, i3;
int i;
int i2;
long L1;
char ch;
f1 = fopen ("3/tmp", "wb+"); /* open input file for test */
if (f1 == NULL)
goto Fail1;
fprintf(f1, " -327678 -0 -002147483647A 327677-22 123*\r");
rewind(f1);
i1 = 0; /* test format string of no */
i = fscanf (f1, "%*06hd8"); /* assignment, max. field */
if (i != 0) /* width of 6, h ignored, */
goto Fail; /* character 8 must appear*/
if (i1 != 0) /* after 5 digits read */
goto Fail;
i2 = 15; /* test "plain vanilla" fmt */
i = fscanf (f1, "%d", &i2); /* string; data contains */
if (i != 1) /* "-0" */
goto Fail;
if (i2 != 0)
goto Fail;
L1 = 0; /* test format string of */
i = fscanf (f1, "%13ldA", &L1); /* max. field width of 13,*/
if (i != 1) /* long variable expected,*/
goto Fail; /* character A must appear*/
if (L1 != -2147483647) /* after digits read */
goto Fail;
L1 = 0; /* test format string of */
i = fscanf (f1, "%6ld%d", &L1, &i2); /* max. field width of 6, */
if (i != 2) /* long variable expected,*/
goto Fail; /* followed by simple fmt */
if ((L1 != 327677) || (i2 != -22)) /* for integer */
goto Fail;
i3 = 4; /* test format string of */
i = fscanf (f1, "%4hd", &i3); /* max. field width of 4, */
if (i != 1) /* short variable expectd.*/
goto Fail; /* * appears in input as */
if (i3 != 123) /* 4th char. */
goto Fail;
i = fscanf (f1, "%c", &ch); /* Ensure offending * has */
if (i != 1) /* been left in input. */
goto Fail;
if (ch != '*')
goto Fail;
i = fscanf (f1, "%c", &ch); /* Ensure fscanf returns EOF*/
if (i != 1) /* when EOF encountered. */
goto Fail;
if (ch != '\r')
goto Fail;
fgetc(f1);
i = fscanf (f1, "%c", &ch);
if (i != EOF)
goto Fail;
i = fclose (f1); /* close the file and quit */
if (i == EOF)
goto Fail2;
printf ("Passed Conformance Test 17.8.0.1\n");
return 0;
Fail:
printf ("Failed Conformance Test 17.8.0.1\n");
return 0;
Fail1:
printf ("Unable to open input file for Conformance Test 17.8.0.1\n");
return 0;
Fail2:
printf ("Unable to close input file for Conformance Test 17.8.0.1\n");
return 0;
}