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ORCA-C/Tests/Conformance/C2.7.2.1.CC

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2017-10-21 23:40:19 +00:00
/* Conformance Test 2.7.2.1: Test single-precision floating-point constants */
#include <math.h>
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.
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int printf(const char *, ...);
int main (void)
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{
float a;
/* Test maximum and minimum single-precision floating-point values, using */
/* all valid syntactic constructs. */
a = 1e+38;
if (fabs(a - 1.E38) > 1e32)
goto Fail;
a = .1e-37;
if (fabs(a - 0.1e-37) > 1e-42)
goto Fail;
/* Test other miscellaneous values. */
a = 32767.F;
if (fabs(a - 32767.000E+00000) > 0.01)
goto Fail;
a = 123.4567;
if (fabs(a - 1.234567E+02) > 0.001)
goto Fail;
a = 00000000;
if (a != 0)
goto Fail;
a = .456789;
if (fabs(a - 456789E-6) > 0.00001)
goto Fail;
/* Test negative values. */
a = -1e+38;
if (fabs(a - (-1.E38)) > 1e33)
goto Fail;
a = -.1e-37;
if (fabs(a - (-1.0e-38)) > 1e-42)
goto Fail;
/* Test other miscellaneous values. */
a = -32768.f;
if (fabs(a - (-32768.000E+00000)) > 0.01)
goto Fail;
a = -123.4567;
if (fabs(a - (-1.234567E+02)) > 0.001)
goto Fail;
a = -.456789;
if (fabs(a - (-456789E-6)) > 0.00001)
goto Fail;
/* Test floating-point constant with many characters in a digit string */
a = \
000000000000000000000000000000000000000000000000000000000000000000000000000007.0
;
if (fabs(a - 7.0) > 0.00001)
goto Fail;
printf ("Passed Conformance Test 2.7.2.1\n");
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.
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return 0;
Change all text/source files to LF line endings.
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Fail:
printf("Failed Conformance Test 2.7.2.1\n");
}
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