From dc7ad97385c940c0a0d67b924c1b78159da5549d Mon Sep 17 00:00:00 2001
From: Waldemar Brodkorb <wbx@openadk.org>
Date: Fri, 23 Jun 2017 23:56:56 +0200
Subject: docs: cleanup directory, fix some porting information

---
 docs/probe_math_exception.c | 64 ---------------------------------------------
 1 file changed, 64 deletions(-)
 delete mode 100644 docs/probe_math_exception.c

(limited to 'docs/probe_math_exception.c')

diff --git a/docs/probe_math_exception.c b/docs/probe_math_exception.c
deleted file mode 100644
index dbc9020d4..000000000
--- a/docs/probe_math_exception.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/* Small test program for probing how various math functions
- * with specific operands set floating point exceptions
- */
-
-#define _ISOC99_SOURCE 1
-#define _GNU_SOURCE    1
-
-#include <stdint.h>
-#include <math.h>
-#include <fenv.h>
-#include <stdio.h>
-
-int main(int argc, char **argv)
-{
-	float largest, small, t, inf_float;
-
-	largest = small = 1;
-	while (1) {
-		t = largest + small;
-		/* optimizations may make plain "t == largest" unreliable */
-		if (memcmp(&t, &largest, sizeof(float)) == 0)
-			break;
-		if (isfinite(t)) {
-			largest = t;
-			small *= 2;
-			continue;
-		}
-		small /= 2;
-	}
-	inf_float = largest + largest;
-	//printf("%.40g ", largest);
-	//printf("[%llx]\n", (long long) (*(uint32_t *)&largest));
-
-	feclearexcept(FE_ALL_EXCEPT);
-
-	//t = 1.0 / 0.0; // simple test: FE_DIVBYZERO
-	//t = nextafterf(largest, 1); // glibc 2.8: no math exceptions raised
-	//t = nextafterf(largest, largest); // glibc 2.8: no math exceptions raised
-	//t = nextafterf(largest, inf_float); // glibc 2.8: FE_INEXACT FE_OVERFLOW
-
-#define PREX(ex) do { if (fetestexcept(ex)) printf(#ex " "); } while(0)
-#ifdef FE_INEXACT
-	PREX(FE_INEXACT);
-#endif
-#ifdef FE_DIVBYZERO
-	PREX(FE_DIVBYZERO);
-#endif
-#ifdef FE_UNDERFLOW
-	PREX(FE_UNDERFLOW);
-#endif
-#ifdef FE_OVERFLOW
-	PREX(FE_OVERFLOW);
-#endif
-#ifdef FE_INVALID
-	PREX(FE_INVALID);
-#endif
-	if (fetestexcept(FE_ALL_EXCEPT))
-		printf("\n");
-	else
-		printf("no math exceptions raised\n");
-
-	printf("%.40g\n", t);
-	return 0;
-}
-- 
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