Have you ever come across this error??"Understand the error thoroughly, so the it is not forced to google in the future" - That"s what i say to myself.#include #include int main() int n = 15; char arr = "Stunning Palace"; printf("Arr <%s> and sizeof(arr) <%d> strlen(arr) <%d>\n", arr, sizeof(arr), strlen(arr)); return 0;Output:


You are watching: Variable-sized object may not be initialized

This error says,1. Initialization has a problem.2. Variable-length selection has a problem.The reason for the over error is we initialized the variable-length variety which is no recommended.char ARR_SIZE = 15;char arr;char arr = ; //errorchar arr = 0; //errorAn selection size can"t be assigned by one more initializer (n = 15), however if the dimension is assigned by one initializer, it i do not care a variable-length array. These variable-length arrays room prohibited from being initialized.#include #include int main() char ARR_SIZE = 15; char arr = ; printf("Arr <%s> and also sizeof(arr) <%d> strlen(arr) <%d>\n", arr, sizeof(arr), strlen(arr)); return 0;Output:
#include #include int main() char ARR_SIZE = 15; char arr = 0; printf("Arr <%s> and sizeof(arr) <%d> strlen(arr) <%d>\n", arr, sizeof(arr), strlen(arr)); return 0;Output:
In role "main":Line 7: error: variable-sized object might not be initializedLine 7: warning: excess elements in variety initializerLine 7: warning: (near initialization because that "arr")
The form of entity to it is in initialized chandelier be an array of unknown dimension or an object kind that is no a variable-length range type, sothe problem is v initialization.This worry can be addressed by two-ways.1. The type of entity to be initialized shall be an object kind that is not a variable-length variety type.#include int main() int n = 15; char arr; sprintf(arr, "Stunning Palace"); printf("Arr <%s> and also sizeof(arr) <%d> strlen(arr) <%d>\n", arr, sizeof(arr), strlen(arr)); return 0;Output:
Another way of assigning selection size is,#include #define ARR_SIZE 15int main() char arr = "Stunning Palace"; printf("Arr <%s> and sizeof(arr) <%d> strlen(arr) <%d>\n", arr, sizeof(arr), strlen(arr)); return 0;Output:
2. The kind of reality to be initialized chandelier be an array of unknown size.#include #include int main() char arr<> = "Stunning Palace"; printf("Arr %s and sizeof(arr) %d strlen(arr) %d\n", arr, sizeof(arr), strlen(arr)); return 0;Output:
Hence, the problem is v initialization with variable-length and not a declaration.This trouble is applicable come integer arrays together well.#include int main() int n = 6; int arr = 1, 2, 3, 4, 5, 6; printf("Array prior to memset() arr %d and sizeof(arr) %d \n", arr<5>, sizeof(arr)); return 0;Output:
In function "main":Line 6: error: variable-sized object might not be initializedLine 6: warning: excess facets in range initializerLine 6: warning: (near initialization for "arr")Line 6: warning: excess elements in selection initializerLine 6: warning: (near initialization for "arr")Line 6: warning: excess aspects in selection initializerLine 6: warning: (near initialization for "arr")Line 6: warning: excess aspects in range initializerLine 6: warning: (near initialization for "arr")Line 6: warning: excess aspects in variety initializerLine 6: warning: (near initialization because that "arr")Line 6: warning: excess elements in selection initializerLine 6: warning: (near initialization because that "arr")
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Sometimes the is simple to understand an additional programming if you space too good at one. Class in C++ vs framework in C What is a class in C++? that is nothing but a structure in C with security.  listed below link will define better. Https://www.geeksforgeeks.org/structure-vs-class-in-cpp/ will certainly be retained updated...  
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Hey all,  I prepared this for one of the job awareness program performed in my college. For the very first half-an-hour, I explained how the DAA is valuable in my career, and also later because that the last few minutes, i was going through this post. Let's obtain into this large topic.  normally a regime requires a number of resources: Memory  I/O Processing  Disk  Every line of a code is created at the expense to the system. The cost depicts the resources it offers which can be:  CPU cycles  Memory  Network  us are an ext concerned about CPU cycles ie., time and memory. Every operation in the reasonable takes time. This operations could be one assignment, review operation, conditional, loop, etc., the is fair to compare and also measure these algorithm through its number of operations.  Why Data Structures space needed?  Though memory is easily accessible to save all the data, retrieving and also accessing the user's data will certainly be as quick as possible if data structures space used.  will cover this in another post  in future.  exactly how the