*tmp++=*src++;

本文通过一个简单的C++程序演示了如何手动实现字符串复制的功能。程序定义了一个名为cpystr的函数,该函数接受两个参数:目标字符数组和源字符数组,并将源字符串的内容复制到目标缓冲区中。此外,还展示了如何使用这个函数来复制字符串并打印结果。

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// starPtrPP.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"

char *cpystr(char* dst, const char* src)
{
	char* tmp=dst;
	while(*src!='\0')
		*tmp++=*src++;
	*tmp='\0';
	return dst;

}
int main(int argc, char* argv[])
{
	char *str="Hello World";
	char buff[256];

	printf("%s!\n",cpystr(buff,str));
	return 0;
}
/*
Hello World!
Press any key to continue
*/

LOCAL_PATH := $(call my-dir) include $(CLEAR_VARS) LOCAL_MODULE := 蓝狐定制.sh LOCAL_CPPFLAGS += -w -s -Wno-error=format-security -fvisibility=hidden -Werror -std=c++17 LOCAL_CPPFLAGS += -Wno-error=c++11-narrowing -fpermissive -Wall -fexceptions LOCAL_C_INCLUDES += $(LOCAL_PATH)/include LOCAL_C_INCLUDES += $(LOCAL_PATH)/include/Aim LOCAL_C_INCLUDES += $(LOCAL_PATH)/include/Android_draw LOCAL_C_INCLUDES += $(LOCAL_PATH)/include/Android_vulkan LOCAL_C_INCLUDES += $(LOCAL_PATH)/include/Android_shm LOCAL_C_INCLUDES += $(LOCAL_PATH)/include/Android_touch LOCAL_C_INCLUDES += $(LOCAL_PATH)/include/Android_check LOCAL_C_INCLUDES += $(LOCAL_PATH)/include/ImGui LOCAL_C_INCLUDES += $(LOCAL_PATH)/include/Tools LOCAL_C_INCLUDES += $(LOCAL_PATH)/include/native_surface FILE_LIST += $(wildcard $(LOCAL_PATH)/src/*.c*) FILE_LIST += $(wildcard $(LOCAL_PATH)/src/Aim/*.c*) FILE_LIST += $(wildcard $(LOCAL_PATH)/src/Android_draw/*.c*) LOCAL_C_INCLUDES += $(LOCAL_PATH)/include/Android_vulkan FILE_LIST += $(wildcard $(LOCAL_PATH)/src/Android_read/*.c*) FILE_LIST += $(wildcard $(LOCAL_PATH)/src/Android_shm/*.c*) FILE_LIST += $(wildcard $(LOCAL_PATH)/src/Android_touch/*.c*) FILE_LIST += $(wildcard $(LOCAL_PATH)/src/Android_check/*.c*) FILE_LIST += $(wildcard $(LOCAL_PATH)/src/ImGui/*.c*) FILE_LIST += $(wildcard $(LOCAL_PATH)/src/native_surface/*.c*) FILE_LIST += $(wildcard $(LOCAL_PATH)/src/Tools/*.c*) LOCAL_SRC_FILES += $(FILE_LIST:$(LOCAL_PATH)/%=%) LOCAL_LDFLAGS += -lEGL -lGLESv2 -lGLESv3 -landroid -llog include $(BUILD_EXECUTABLE) 添加 o3pgo
最新发布
07-07
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