#include <stdio.h> #include <stdlib.h> int main () { int firstDigit; char *firstNumber = 0; char operator; int secondDigit; char *secondNumber = 0; printf("digit "); scanf("%d *[^\n]", &firstDigit); fgets(firstNumber, firstDigit, stdin); printf("%s \n", firstNumber); } The code here gives me null as firstNumber while it clearly should just be a string. here is the results of… Read More fgets giving me null
I am new to C language. I want to determine the fgets() lenght at runtime, something like: int i; char str[100]; scanf("%d",&i); fgets(str, i, stdin); At execution, the program just skips my fgets() line, there is no error, I don’t see anything in dbg. If I set a concrete value for the input length, it… Read More How to set fgets() lenth at runtime (in C)
I am new to C language. I want to determine the fgets() lenght at runtime, something like: int i; char str[100]; scanf("%d",&i); fgets(str, i, stdin); At execution, the program just skips my fgets() line, there is no error, I don’t see anything in dbg. If I set a concrete value for the input length, it… Read More How to set fgets() lenth at runtime (in C)
I am learning C and I don’t understand why this code doesn’t work. It’s supposed to skip the first character, separate it in 8,4,4,4,4. But it adds one extra "0" to beginning of the second column and shifts the rest. Also when I try to run it on Windows I can’t see any results. Sometimes… Read More CSV(ish) text handling – incorrect output on Windows, works on Linux
I’m trying to create a file to send information to another process. But when I reach the send_file function, I get –>Error in fgets():: Bad file descriptor. Can someone help me address this matter, please? I’m stuck. #include <stdlib.h> #include <stdio.h> void send_file(FILE *fp, int sockfd){ char data[SIZE] = {0}; if (fgets(data, SIZE, fp) ==… Read More Bad file descriptor fgets
I need to write a program where the user enters the number of strings and the program counts the number of vowels in each string and prints the total number of vowels. The following code works without two dimensional array int countVoweles(char inputArray[]) { int total = 0; char vowels[] = "aAeEiIoOuU"; for (int i… Read More Count vowels in each of the strings using two dimensional array
I am trying to load words from a text file into a binary search tree. Each line of the file contains one word. #include <stdio.h> #include <stdlib.h> #include <string.h> typedef struct node node; struct node { node *left, *right; char *key; }; node *newnode(char *key) { node *n = malloc(sizeof(node)); n->key = malloc(sizeof(key)); strcpy(n->key, key);… Read More I am trying to load words from a text file into a binary search tree
So im learning about pointers and dynamic memory and how am experimenting with fgets. So i want to take in a string input into a pointer using fgets, but i want fgets size to change dynamically with malloc function that i used for the pointer is there a way to do it ? e.g. int… Read More is there a way to use fgets size dynamically
I need to write some code that would allow me to read a string that was input by a user using fgets() but the first character is info about what the program should do. For example in the program that i’m writing, if input[0] == ‘p’ i want it to add to a struct the… Read More How do i read specific from one specific index to another?