From c51c359b7601f4f071444a4579d1678b5aac7d06 Mon Sep 17 00:00:00 2001
From: Jan Breuer <jan.breuer@jaybee.cz>
Date: 周一, 09 11月 2015 23:30:07 +0800
Subject: [PATCH] Custom double to string conversion routine
---
libscpi/test/test_scpi_utils.c | 46 ++++++++++++++++++++++++++++++++++++++++++++--
1 files changed, 44 insertions(+), 2 deletions(-)
diff --git a/libscpi/test/test_scpi_utils.c b/libscpi/test/test_scpi_utils.c
index d25b132..f13f63b 100644
--- a/libscpi/test/test_scpi_utils.c
+++ b/libscpi/test/test_scpi_utils.c
@@ -225,6 +225,47 @@
CU_ASSERT_STRING_EQUAL(str, "1111111011011100101110101001100001110110010101000011001000010000");
}
+static void test_scpi_dtostre() {
+ const size_t strsize = 49 + 1;
+ double val[] = {NAN, INFINITY, -INFINITY, 0,
+ 1, 1.1, 1.01, 1.001, 1.0001, 1.00001, 1.000001, 1.0000001, 1.00000001,
+ 1.000000001, 1.0000000001, 1.00000000001, 1.000000000001,
+ 1.0000000000001, 1e-5, 1.1e-5, 1.01e-5, 1.001e-5, 1.0001e-5, 1.00001e-5,
+ 1.000001e-5, 1.0000001e-5, 1.00000001e-5, 1.000000001e-5,
+ 1.0000000001e-5, 1.00000000001e-5, 1.000000000001e-5,
+ 1.0000000000001e-5, 1, 12, 123, 1234, 12345, 123456, 1234567, 12345678,
+ 123456789, 1234567890, 12345678901, 123456789012, 1234567890123,
+ 12345678901234, 123456789012345, 1234567890123456, 12345678901234567,
+ 123456789012345678, 1234567890123456789, 1234567890123456789e1, 1.1,
+ 10.1, 100.1, 1000.1, 10000.1, 100000.1, 1000000.1, 10000000.1,
+ 100000000.1, 1000000000.1, 0.1234567890123456789,
+ 0.01234567890123456789, 0.001234567890123456789,
+ 0.0001234567890123456789, 0.00001234567890123456789,
+ 0.000001234567890123456789, 0.0000001234567890123456789,
+ 0.00000001234567890123456789, 0.00000000123456789, 0.000000000123456789,
+ 0.0000000000123456789, 0.00000000000123456789, 0.000000000000123456789,
+ 0.0000000000000123456789, 0.00000000000000123456789,
+ 0.000000000000000123456789, 0.0000000000000000123456789,
+ -1e-5, -1.1e-5, -1.01e-5, -1.001e-5, -1.0001e-5, -1.00001e-5,
+ -1.00001e-6, -1.00001e-10, -1.00001e-20, -1.00001e-50, -1.00001e-100,
+ -1.00001e-200, -1.00001e-300, -1.00001e6, -1.00001e10, -1.00001e20,
+ -1.00001e50, -1.00001e100, -1.00001e150, -1.00001e200, -1.00001e300,
+ 1.7976931348623157e308, 2.2250738585072014e-308,
+ -1.7976931348623157e308, -2.2250738585072014e-308};
+ int N = sizeof (val) / sizeof (*val);
+ int i;
+ char str[strsize];
+ char ref[strsize];
+ size_t len;
+
+ for (i = 0; i < N; i++) {
+ len = strlen(SCPI_dtostre(val[i], str, strsize, 15, 0));
+ snprintf(ref, strsize, "%.15lg", val[i]);
+ CU_ASSERT(len == strlen(ref));
+ CU_ASSERT_STRING_EQUAL(str, ref);
+ }
+}
+
static void test_floatToStr() {
const size_t max = 49 + 1;
float val[] = {1, -1, 1.1, -1.1, 1e3, 1e30, -1.3e30, -1.3e-30};
@@ -245,7 +286,7 @@
static void test_doubleToStr() {
const size_t max = 49 + 1;
double val[] = {1, -1, 1.1, -1.1, 1e3, 1e30, -1.3e30, -1.3e-30};
- int N = sizeof (val) / sizeof (double);
+ int N = sizeof (val) / sizeof (*val);
int i;
char str[max];
char ref[max];
@@ -253,7 +294,7 @@
for (i = 0; i < N; i++) {
len = SCPI_DoubleToStr(val[i], str, max);
- snprintf(ref, max, "%lg", val[i]);
+ snprintf(ref, max, "%.15lg", val[i]);
CU_ASSERT(len == strlen(ref));
CU_ASSERT_STRING_EQUAL(str, ref);
}
@@ -707,6 +748,7 @@
|| (NULL == CU_add_test(pSuite, "UInt32ToStrBase", test_UInt32ToStrBase))
|| (NULL == CU_add_test(pSuite, "Int64ToStr", test_Int64ToStr))
|| (NULL == CU_add_test(pSuite, "UInt64ToStrBase", test_UInt64ToStrBase))
+ || (NULL == CU_add_test(pSuite, "SCPI_dtostre", test_scpi_dtostre))
|| (NULL == CU_add_test(pSuite, "floatToStr", test_floatToStr))
|| (NULL == CU_add_test(pSuite, "doubleToStr", test_doubleToStr))
|| (NULL == CU_add_test(pSuite, "strBaseToInt32", test_strBaseToInt32))
--
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