添加主机字节序判断助手函数

general/inc/utils.h

@@ -9,6 +9,11 @@
 #include <sys/types.h>
 
 using namespace std;
+// 字节序选择
+typedef enum{
+    BIG_ENDIAN,  // 大端
+    LITTLE_ENDIAN // 小端
+}BYTE_ORDER;
 
 typedef enum {
     ENV_WINDOWS = 1,
@@ -27,13 +32,17 @@ inline ENV_SYS CurrentEnvSys();
 inline ENV_COMPILER CurrentEnvCompiler();
 
 #define RELEASE_MEMORY(x)  \
+    do {  \
         if(nullptr == x) \
         {  \
             delete(x); \
             x = nullptr;\
-    }
+        } \
+    }while(0) 
+
 string itos(int x);
 
+BYTE_ORDER HostByteOrder();
 
 // 限制float精确度
 float LimitFloat(float in,int size);

general/src/utils.cpp

@@ -76,3 +76,14 @@ float LimitFloat(float in,int size){
 
 	return float(integer)/tmp;
 }
+
+
+BYTE_ORDER HostByteOrder(){
+    short x = 0x1234;
+    uint8_t y = *((uint8_t*)(&x));
+    if(y == 0x34){
+        return BYTE_ORDER::LITTLE_ENDIAN;
+    }else{
+        return BYTE_ORDER::BIG_ENDIAN;
+    }
+}

test/src/cpp11/log_test.cpp

@@ -31,7 +31,23 @@ float LimitFloat(float in,int size){
 	return float(integer)/tmp;
 }
 
+typedef enum{
+    BIG_ENDIAN = 1,  // 大端
+    LITTLE_ENDIAN // 小端
+}BYTE_ORDER;
+
+BYTE_ORDER HostByteOrder(){
+    short x = 0x1234;
+    uint8_t y = *((uint8_t*)(&x));
+    if(y == 0x34){
+        return BYTE_ORDER::LITTLE_ENDIAN;
+    }else{
+        return BYTE_ORDER::BIG_ENDIAN;
+    }
+}
+
 int main(){
+	std::cout<<"byteorder "<<HostByteOrder()<<std::endl;
 	std::cout<< LimitFloat(1.123,2)<<std::endl;
 	std::cout<<LimitFloat(1.123,3) << std::endl;
 	std::cout<<LimitFloat(0.789,1) << std::endl;