mirror of
https://github.com/byteworksinc/ORCA-C.git
synced 2025-01-01 13:29:32 +00:00
91d33b586d
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.
78 lines
1.8 KiB
C++
78 lines
1.8 KiB
C++
/* Conformance Test 17.13.0.1: Verification of fread and fwrite */
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#include <stdio.h>
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#include <math.h>
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struct S { int i;
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float f;
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char c; };
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int main (void)
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{
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struct S s [3] = { 1, 1.0, 'a', 2, 2.0, 'b', 3, 3.0, 'c' };
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struct S buff [3];
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FILE *f = fopen ("3/tmp", "w+b");
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int i;
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/* Write the elements to the file. */
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if (f == NULL)
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goto Fail1;
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i = fwrite ((void *) s, sizeof (struct S), 3, f);
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if (i != 3)
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goto Fail;
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/* Read the elements from the file. */
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rewind (f);
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i = fread ((void *) buff, sizeof (struct S), 3, f);
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if (i != 3)
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goto Fail;
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if ((s [0].i != 1) || (s [1].i != 2) || (s [2].i != 3))
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goto Fail;
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if ((fabs(s [0].f - 1.0) > 0.00001) || (fabs(s [1].f - 2.0) > 0.00001) ||
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(fabs(s [2].f - 3.0) > 0.00001))
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goto Fail;
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if ((s [0].c != 'a') || (s [1].c != 'b') || (s [2].c != 'c'))
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goto Fail;
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/* Ensure that a count or element_size of 0 causes no chars to be written. */
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i = fwrite ((void *) s, sizeof (struct S), 0, f);
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if (i != 0)
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goto Fail;
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i = fwrite ((void *) s, 0, 2, f);
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if (i != 2)
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goto Fail;
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rewind (f);
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i = fread ((void *) s, sizeof (struct S), 0, f);
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if (i != 0)
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goto Fail;
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i = fread ((void *) s, 0, 2, f);
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if (i != 0)
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goto Fail;
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i = fclose (f); /* close the file and quit */
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if (i == EOF)
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goto Fail2;
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printf ("Passed Conformance Test 17.13.0.1\n");
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return 0;
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Fail:
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printf ("Failed Conformance Test 17.13.0.1\n");
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return 0;
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Fail1:
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printf ("Unable to open temp file for Conformance Test 17.13.0.1\n");
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return 0;
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Fail2:
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printf ("Unable to close output file for Conformance Test 17.13.0.1\n");
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return 0;
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}
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