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utils.cpp

@@ -0,0 +1,71 @@
+// utils.cpp 2021-08-03 by 云中龙++
+#include <stdarg.h>
+#include <cstdio>
+#include "NVutils.h"
+
+#if defined(_WIN32) || defined(_WIN64)
+
+#include <Windows.h> /* 使用Windows API设置字体颜色 */
+
+void nv_error(const char *prefix, const char *str, ...)
+{
+	va_list args; va_start(args, str);
+	static HANDLE h = GetStdHandle(STD_ERROR_HANDLE);
+	SetConsoleTextAttribute(h, 0x0F); fprintf(stderr, "[%s] ", prefix);
+	SetConsoleTextAttribute(h, 0x0C); fprintf(stderr, "Error: ");
+	SetConsoleTextAttribute(h, 0x07); vfprintf(stderr, str, args);
+	va_end(args);
+}
+
+void nv_warn(const char *prefix, const char *str, ...)
+{
+	va_list args; va_start(args, str);
+	static HANDLE h = GetStdHandle(STD_ERROR_HANDLE);
+	SetConsoleTextAttribute(h, 0x0F); fprintf(stderr, "[%s] ", prefix);
+	SetConsoleTextAttribute(h, 0x0E); fprintf(stderr, "Warning: ");
+	SetConsoleTextAttribute(h, 0x07); vfprintf(stderr, str, args);
+	va_end(args);
+}
+
+void nv_print(const char *prefix, const char *str, ...)
+{
+	va_list args; va_start(args, str);
+	static HANDLE h = GetStdHandle(STD_OUTPUT_HANDLE);
+	SetConsoleTextAttribute(h, 0x0A); printf("[%s] ", prefix);
+	SetConsoleTextAttribute(h, 0x07); vprintf(str, args); va_end(args);
+}
+
+#else /* 使用\033控制字符设置字体颜色 */
+
+void nv_error(const char *prefix, const char *str, ...)
+{
+	va_list args; va_start(args, str);
+	fprintf(stderr, "\033[1m[%s] \033[31mError: \033[m", prefix);
+	vfprintf(stderr, str, args); va_end(args);
+}
+
+void nv_warn(const char *prefix, const char *str, ...)
+{
+	va_list args; va_start(args, str);
+	fprintf(stderr, "\033[1m[%s] \033[33mWarning: \033[m", prefix);
+	vfprintf(stderr, str, args); va_end(args);
+}
+
+void nv_print(const char *prefix, const char *str, ...)
+{
+	va_list args; va_start(args, str);
+	printf("\033[32;1m[%s] \033[m", prefix); vprintf(str, args);
+	va_end(args);
+}
+
+#endif /* defined(_WIN32) || defined(_WIN64) */
+
+void nv_revu16(u16_t &x)
+{
+	x = x >> 8 | x << 8;
+}
+
+void nv_revu32(u32_t &x)
+{
+	x = x >> 24 | (x & 0xFF0000) >> 8 | (x & 0xFF00) << 8 | x << 24;
+}