update

src/replaceStr/main.cpp

@@ -1,4 +1,8 @@
 #include <cstddef>
+<<<<<<< HEAD
+#include <cstdlib>
+=======
+>>>>>>> eb850866576adf89f6e59cb7b07b5a690e8b1d33
 #include<tools.hpp>
 #include <string_view>
 
@@ -7,6 +11,44 @@ void print_help(){
 }
 
 int main(const int argc,const char *argv[]){
+<<<<<<< HEAD
+    if(argc==1){
+        print_help();
+        exit(-1);
+    }
+
+    std::string argv1(argv[1]);
+    if(argc==2){
+        if(argv1=="-h"){
+            zt::print("help:\n","\tThis is a simple string replacer to replace characters of the same length.\n","\t<string> <character to be replaced> <character to replace>\n","\t\t-By Zengtudor\n");
+        }else{
+            print_help();
+        }
+    }else if(argc==4){
+        std::string_view be_replaced(argv[2]),to_replace(argv[3]);
+        if(be_replaced.size()!=to_replace.size()){
+            zt::eprint("The length of last two characters are not same!\n");
+            exit(-1);
+        }
+        for(auto i: zt::Range((size_t)0,argv1.size())){
+            if(argv1[i]==be_replaced[0]){
+                for(auto j: zt::Range((size_t)0,be_replaced.size())){
+                    if(argv1[i+j]!=be_replaced[j]){
+                        goto out_of_match;
+                    }
+                }
+                for(auto j:zt::Range((size_t)0,be_replaced.size())){
+                    argv1[i+j]=to_replace[j];
+                }
+            }
+            out_of_match:;
+        }   
+    }else{
+        print_help();
+    }
+
+    zt::print(argv1,"\n");
+=======
     std::string argv1(argv[1]);
     if(argc==2){
         if(argv1=="-h"){
@@ -39,4 +81,5 @@ int main(const int argc,const char *argv[]){
     zt::print(argv1,"\n");
 
     end:;
+>>>>>>> eb850866576adf89f6e59cb7b07b5a690e8b1d33
 }

src/tools/tools.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <iostream>
+#include <ostream>
 #include <sstream>
 
 #define NAME_VALUE(v)#v," : ",(v)
@@ -41,10 +42,22 @@ namespace zt {
     };
 
     template<typename ...Args>
-    void print(const Args&...args){
+    inline void print(std::ostream &os,const Args&...args){
         std::stringstream ss;
         ((ss<<args),...);
-        std::cout<<ss.str();
+        os<<ss.str();
+        return;
+    }
+
+    template<typename ...Args>
+    inline void print(const Args&...args){
+        print(std::cin,args...);
+        return;
+    }
+
+    template<typename ...Args>
+    inline void eprint(const Args&...args){
+        print(std::cerr,args...);
         return;
     }
 }