add files queue c and h

This commit is contained in:
Aurélien Gauthier 2022-06-10 10:15:14 +02:00
parent 98e11c2443
commit 9ab534b727
2 changed files with 112 additions and 0 deletions

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queue.c Normal file
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#include <assert.h>
/**
* @brief squeue struct used for queueing string name
*
* @param charLen lenght of tabChar pointeur
* @param tabChar char array pointer
* @param pNextE point next element
*/
struct queue {
int charLen;
char * tabChar;
Pqueue pNextE;
}squeue;
typedef squeue *Pqueue;
/**
* @brief Create Element of queue
*
* @param lenChar size of char array that will be created
* @return Pqueue new element created
*/
Pqueue createE(int lenChar){
Pqueue new = (Pqueue) malloc(sizeof(squeue));
assert(new);
/* ???? tab char create or give pointer ???*/
new.charLen = lenChar;
new.tabChar = (char *) malloc(lenChar * sizeof(char));
new.pNextE = NULL;
return new;
}
/**
* @brief switch to the next element
*
* @param elem current element
* @return Pqueue next element
*/
Pqueue pNextE(Pqueue elem){
assert(elem);
return elem.pNextE
}
/**
* @brief remove and free the last element of queue
*
* @param elem current element
* @return Pqueue current element
*/
Pqueue rmLastE(Pqueue elem){
assert(elem);
Pqueue tmp = elem, previous = NULL;
while(elem.pNextE != NULL){
previous = tmp;
tmp = pNextE(tmp);
}
free(tmp.tabChar);
free(tmp);
previous.pNextE = NULL;
return elem;
}
/**
* @brief remove and free the first element of queue
*
* @param elem target to remove (the element need to be the first)
* @return Pqueue the second element after remove first
*/
Pqueue rmFrstE(Pqueue elem){
assert(elem);
Pqueue tmp = elem.pNextE;
free(elem.tabChar);
free(elem);
return tmp;
}
/**
* @brief delete the first value and return the next value
*
* @param elem
* @return Pqueue
*/
Pqueue nextDelFrst(Pqueue elem){
assert(elem);
Pqueue tmp = elem.pNextE;
rmFrstE(elem);
return tmp;
}
/**
* @brief add in the end of queue element with string parameter
*
* @param elem Pqueue will be added at the end of queue
* @param str the string will be bind at the element
* @param len the lenght of char array
* @return Pqueue pointer to the last element
*/
Pqueue addLastQ(Pqueue elem, const char* str, int len){
assert(elem);
assert(str);
Pqueue tmp = elem, previous = NULL;
while(elem.pNextE != NULL){
previous = tmp;
tmp = pNextE(tmp);
}
tmp = createE(len);
tmp.tabChar = str;
tmp.charLen = len;
return tmp;
}

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queue.h Normal file
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