Added uBASIC-Plus program object example to STM32F4xx. (#967)

src/bacnet/basic/program/ubasic/platform.h

@@ -0,0 +1,46 @@
+/**
+ * @file
+ * @author Steve Karg <skarg@users.sourceforge.net>
+ * @date 2025
+ * @brief Platform libc and compiler abstraction layer
+ * @details This libc and compiler abstraction layer assists with differences
+ * between compiler and libc versions, capabilities, and C standards.
+ * @copyright SPDX-License-Identifier: MIT
+ */
+#ifndef UBASIC_PLATFORM_H
+#define UBASIC_PLATFORM_H
+#include <stddef.h>
+#include <string.h>
+#include <limits.h>
+#include <math.h>
+
+#ifndef INT_MAX
+#define INT_MAX (~0U >> 1U)
+#endif
+
+#ifndef NOMINMAX
+#ifndef max
+#define max(a, b) (((a) > (b)) ? (a) : (b))
+#endif
+#ifndef min
+#define min(a, b) (((a) < (b)) ? (a) : (b))
+#endif
+#endif
+
+#ifndef islessgreater
+#define islessgreater(x, y) ((x) < (y) || (x) > (y))
+#endif
+
+#ifndef isgreaterequal
+#define isgreaterequal(x, y) ((x) > (y) || !islessgreater((x), (y)))
+#endif
+
+#ifndef islessequal
+#define islessequal(x, y) ((x) < (y) || !islessgreater((x), (y)))
+#endif
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(array) ((size_t)(sizeof(array) / sizeof((array)[0])))
+#endif
+
+#endif