String qsort
2020年2月9日 — c qsort with string 用法. #include <stdio.h> #include <stdlib.h> #include <string.h> int cmp(const void *a,const void *b) ,Your comparator is being sent each pair by-address. I.e. they're pointer-to-pointer-to-char. Change the comparator to:,Please note: It is unusual to store C strings in two dimensional char arrays. It's more normal to have char *ary[] , such as argv. ,I've changed your myCompare function to what Mitch Wheat had posted earlier, and that works properly. Here's the example:,You are passing wrong size while calling qsort . You are passing sizeof(char) as the size of your individual element, which is wrong. ,The problem is in myStrCmp function. Because a and b are elements in not a simple array, but in array of pointers, their type must be char ** and function ...,I strongly recommend the modern method of #include <algorithm> #include <iostream> #include <string> int main() std::string s(cake); ... ,2021年5月29日 — EOF) for(int i = 0; i < n; i++) scanf(%s,&arr[i]); //printf(%d string is %s-n,i,arr[i]); } //use strcmp + qsort qsort(arr, n, 1000, ... ,2021年3月28日 — 指標真的好難寫了那麼久還是不太懂想用qsort sort 字串array 結果compare函式怎麼用都會錯囧後來上網查了一下資料才知道用錯了orz 以下是compare函式 ... ,六種qsort排序方法 ... qsort(num,100,sizeof(num[0]),cmp); ... 是一個指向char*資料形態的指標, 而char*在C裡多半當做字串使用, 因此你可以想成是String*, 也就是:
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 String qsort 相關參考資料
c qsort with string 用法 - 隨筆記
2020年2月9日 — c qsort with string 用法. #include <stdio.h> #include <stdlib.h> #include <string.h> int cmp(const void *a,const void *b) https://vannilabetter.blogspot How to use qsort for an array of strings? - Stack Overflow
Your comparator is being sent each pair by-address. I.e. they're pointer-to-pointer-to-char. Change the comparator to: https://stackoverflow.com Sorting strings using qSort - Stack Overflow
Please note: It is unusual to store C strings in two dimensional char arrays. It's more normal to have char *ary[] , such as argv. https://stackoverflow.com qsort did not sort the array of string [duplicate] - Stack Overflow
I've changed your myCompare function to what Mitch Wheat had posted earlier, and that works properly. Here's the example: https://stackoverflow.com sorting of strings using qsort - Stack Overflow
You are passing wrong size while calling qsort . You are passing sizeof(char) as the size of your individual element, which is wrong. https://stackoverflow.com Sorting strings with qsort does not work - Stack Overflow
The problem is in myStrCmp function. Because a and b are elements in not a simple array, but in array of pointers, their type must be char ** and function ... https://stackoverflow.com How to use qsort for string in C++ - Stack Overflow
I strongly recommend the modern method of #include <algorithm> #include <iostream> #include <string> int main() std::string s(cake); ... https://stackoverflow.com 使用qsort 跟strcmp排序超長數字 - iT 邦幫忙
2021年5月29日 — EOF) for(int i = 0; i < n; i++) scanf(%s,&arr[i]); //printf(%d string is %s-n,i,arr[i]); } //use strcmp + qsort qsort(arr, n, 1000, ... https://ithelp.ithome.com.tw C語言用qsort sort string array - 卡卡的程式部落格
2021年3月28日 — 指標真的好難寫了那麼久還是不太懂想用qsort sort 字串array 結果compare函式怎麼用都會錯囧後來上網查了一下資料才知道用錯了orz 以下是compare函式 ... https://carl830.pixnet.net qsort的函數指標方法 - winage的部落格- 痞客邦
六種qsort排序方法 ... qsort(num,100,sizeof(num[0]),cmp); ... 是一個指向char*資料形態的指標, 而char*在C裡多半當做字串使用, 因此你可以想成是String*, 也就是: https://winage.pixnet.net |