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feat: use calloc in matrix allocation. #2

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feat: use calloc in matrix allocation. #2

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9 changes: 4 additions & 5 deletions main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -47,7 +47,7 @@ int main(int argc, char* argv[]){

char *input_matrix(int width, int height)
{
char *matrix = malloc(sizeof(char) * (width * height + 1)); //+1 for null
char *matrix = calloc(width * height + 1, sizeof(char)); // +1 for null
char *line = NULL;
size_t size;

Expand All @@ -56,15 +56,14 @@ char *input_matrix(int width, int height)

while (strlen(matrix) < width * height)
{
int n = getline(&line, &size, stdin) - 1; // do not count line feed
int n = getline(&line, &size, stdin) - 1; // to not count line feed
if (n > width)
{
printf("\033[1A\033[K"); // go up and erase line
continue;
}
/* Fill the rest with spaces */
memset(line + n, ' ', width - n);
line[width] = '\0'; // terminate modified string
/* Fill the rest with null */
memset(line + n, 0, width - n);
printf("\033[1A%s|\n", line); // show priview of line
strncat(matrix, line, width);
}
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