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authorstefanf <stefanf@FreeBSD.org>2004-10-11 18:40:45 +0000
committerstefanf <stefanf@FreeBSD.org>2004-10-11 18:40:45 +0000
commitd9abb42b2655077f06a65700183a35ceed0086bb (patch)
tree5d240230160aa06a096036c8d97eaeb6079b8db9 /tools
parente84a71d3309b85356f20c9f58cd7c7193758f3e0 (diff)
downloadFreeBSD-src-d9abb42b2655077f06a65700183a35ceed0086bb.zip
FreeBSD-src-d9abb42b2655077f06a65700183a35ceed0086bb.tar.gz
Add regression tests for ilogb{,f,l}().
Diffstat (limited to 'tools')
-rw-r--r--tools/regression/lib/msun/Makefile2
-rw-r--r--tools/regression/lib/msun/test-ilogb.c82
2 files changed, 83 insertions, 1 deletions
diff --git a/tools/regression/lib/msun/Makefile b/tools/regression/lib/msun/Makefile
index 7806d6d..dbe44f6 100644
--- a/tools/regression/lib/msun/Makefile
+++ b/tools/regression/lib/msun/Makefile
@@ -1,6 +1,6 @@
# $FreeBSD$
-TESTS= test-fenv
+TESTS= test-fenv test-ilogb
CFLAGS+= -O0 -lm
ARCH!= uname -m
.if ${ARCH} == "alpha"
diff --git a/tools/regression/lib/msun/test-ilogb.c b/tools/regression/lib/msun/test-ilogb.c
new file mode 100644
index 0000000..87b1ef4
--- /dev/null
+++ b/tools/regression/lib/msun/test-ilogb.c
@@ -0,0 +1,82 @@
+/*-
+ * Copyright (c) 2004 Stefan Farfeleder
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <assert.h>
+#include <float.h>
+#include <limits.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int
+main(void)
+{
+ char buf[128], *end;
+ double d;
+ float f;
+ long double ld;
+ int e, i;
+
+ assert(ilogb(0) == FP_ILOGB0);
+ assert(ilogb(NAN) == FP_ILOGBNAN);
+ assert(ilogb(INFINITY) == INT_MAX);
+ for (e = DBL_MIN_EXP - DBL_MANT_DIG; e < DBL_MAX_EXP; e++) {
+ snprintf(buf, sizeof(buf), "0x1.p%d", e);
+ d = strtod(buf, &end);
+ assert(*end == '\0');
+ i = ilogb(d);
+ assert(i == e);
+ }
+ printf("PASS ilogb\n");
+
+ assert(ilogbf(0) == FP_ILOGB0);
+ assert(ilogbf(NAN) == FP_ILOGBNAN);
+ assert(ilogbf(INFINITY) == INT_MAX);
+ for (e = FLT_MIN_EXP - FLT_MANT_DIG; e < FLT_MAX_EXP; e++) {
+ snprintf(buf, sizeof(buf), "0x1.p%d", e);
+ f = strtof(buf, &end);
+ assert(*end == '\0');
+ i = ilogbf(f);
+ assert(i == e);
+ }
+ printf("PASS ilogbf\n");
+
+ assert(ilogbl(0) == FP_ILOGB0);
+ assert(ilogbl(NAN) == FP_ILOGBNAN);
+ assert(ilogbl(INFINITY) == INT_MAX);
+ for (e = LDBL_MIN_EXP - LDBL_MANT_DIG; e < LDBL_MAX_EXP; e++) {
+ snprintf(buf, sizeof(buf), "0x1.p%d", e);
+ ld = strtold(buf, &end);
+ assert(*end == '\0');
+ i = ilogbl(ld);
+ assert(i == e);
+ }
+ printf("PASS ilogbl\n");
+
+ return (0);
+}
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