ORCA-C/Tests/Conformance/C17.8.0.2.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

64 lines
2.3 KiB
C++

/* Conformance Test 17.8.0.2: Verification of fscanf, u format code */
#include <stdio.h>
int main (void)
{
FILE *f1;
int i;
unsigned short us1;
unsigned int ui1;
unsigned long ul1;
f1 = fopen ("3/tmp", "wb+"); /* open input file for test */
if (f1 == NULL)
goto Fail1;
fprintf(f1, " 327678 D 4294967295m 32767722\r");
rewind(f1);
ui1 = 2; /* test format string of no */
i = fscanf (f1, "%*05hu8"); /* assignment, max. field */
if (i != 0) /* width of 5, h ignored, */
goto Fail; /* character 8 must appear*/
if (ui1 != 2) /* after 5 digits read */
goto Fail;
i = fscanf (f1, "%u", &ui1); /* test "plain vanilla" fmt */
if (i != 0) /* string; data contains */
goto Fail; /* the character 'D' */
ul1 = 0; /* test format string of */
i = fscanf (f1, "D %12ldm", &ul1); /* max. field width of 12,*/
if (i != 1) /* long variable expected,*/
goto Fail; /* character m must appear*/
if (ul1 != 4294967295u) /* after digits read */
goto Fail;
ul1 = 0; /* test format string of */
i = fscanf (f1, "%6lu%u", &ul1, &ui1); /* max. field width of 6, */
if (i != 2) /* long variable expected,*/
goto Fail; /* followed by simple fmt */
if ((ul1 != 327677) || (ui1 != 22)) /* for integer */
goto Fail;
i = fclose (f1); /* close the file and quit */
if (i == EOF)
goto Fail2;
printf ("Passed Conformance Test 17.8.0.2\n");
return 0;
Fail:
printf ("Failed Conformance Test 17.8.0.2\n");
return 0;
Fail1:
printf ("Unable to open input file for Conformance Test 17.8.0.2\n");
return 0;
Fail2:
printf ("Unable to close input file for Conformance Test 17.8.0.2\n");
return 0;
}