#include int write_one_by_one(char *filename, const char *text){ FILE *file = fopen(filename, "w"); if(!file) return 1; int index = 0; while(*(text + index) != '\0'){ fputc(*(text + index ), file); index ++; } //fputc(*text, file); //fputc('\0', file); fclose(file); return 0; } int write_all_in_one(char *filename, const char *text){ FILE *file = fopen(filename, "w"); if(!file)return 1; fprintf(file, "%s\n", text); fclose(file); return 0; } /* int main() { // does_exist.txt contains: "something which will be replaced" int a = write_one_by_one("does_exist.txt", "Hello World!"); // does_exist.txt contains: "Hello World!" // does_not_exist.txt... does not exist. int b = write_one_by_one("does_not_exist.txt", "Now I exist"); // does_not_exist.txt... now exists and contains: "Now I exist" printf("%d %d\n", a, b); // 0 0 // The opening should succeed as it creates the file if needed // However it can fail if the file's access is forbidden // does_exist.txt contains: "Hello World!" a = write_all_in_one("does_exist.txt", "What a good day!"); // does_exist.txt contains: "What a good day!" // still_not_yet_exist.txt... does not exist. b = write_all_in_one("still_not_yet_exist.txt", "Now I exist"); // still_not_yet_exist.txt... now exists and contains: "Now I exist" printf("%d %d\n", a, b); // 0 0 // The opening should succeed as it creates the file if needed // However it can fail if the file's access is forbidden return 0; } */