Add function for generating random floats

kgryte · kgryte · commit 1948e4730141 · 2022-01-05T22:03:49.000-08:00
diff --git a/tools/snippets/benchmark/c/benchmark.c b/tools/snippets/benchmark/c/benchmark.c
@@ -77,9 +77,19 @@ double tic() {
 }
 
 /**
-* Generates a random double on the interval [0,1].
+* Generates a random number on the interval [0,1].
 *
-* @return random double
+* @return random number
+*/
+float rand_float() {
+	int r = rand();
+	return (float)r / ( (float)RAND_MAX + 1.0f );
+}
+
+/**
+* Generates a random number on the interval [0,1].
+*
+* @return random number
 */
 double rand_double() {
 	int r = rand();
diff --git a/tools/snippets/benchmark/c/cephes/benchmark.c b/tools/snippets/benchmark/c/cephes/benchmark.c
@@ -82,9 +82,19 @@ double tic() {
 }
 
 /**
-* Generates a random double on the interval [0,1].
+* Generates a random number on the interval [0,1].
 *
-* @return random double
+* @return random number
+*/
+float rand_float() {
+	int r = rand();
+	return (float)r / ( (float)RAND_MAX + 1.0f );
+}
+
+/**
+* Generates a random number on the interval [0,1].
+*
+* @return random number
 */
 double rand_double() {
 	int r = rand();
diff --git a/tools/snippets/benchmark/c/native/benchmark.c b/tools/snippets/benchmark/c/native/benchmark.c
@@ -78,9 +78,19 @@ double tic() {
 }
 
 /**
-* Generates a random double on the interval [0,1].
+* Generates a random number on the interval [0,1].
 *
-* @return random double
+* @return random number
+*/
+float rand_float() {
+	int r = rand();
+	return (float)r / ( (float)RAND_MAX + 1.0f );
+}
+
+/**
+* Generates a random number on the interval [0,1].
+*
+* @return random number
 */
 double rand_double() {
 	int r = rand();
diff --git a/tools/snippets/benchmark/c/native/benchmark.length.c b/tools/snippets/benchmark/c/native/benchmark.length.c
@@ -81,9 +81,19 @@ double tic() {
 }
 
 /**
-* Generates a random double on the interval [0,1].
+* Generates a random number on the interval [0,1].
 *
-* @return random double
+* @return random number
+*/
+float rand_float() {
+	int r = rand();
+	return (float)r / ( (float)RAND_MAX + 1.0f );
+}
+
+/**
+* Generates a random number on the interval [0,1].
+*
+* @return random number
 */
 double rand_double() {
 	int r = rand();
