printf:
printf function is used to print character stream of data on stdout console.
Syntax :
int printf(const char* str, ...);
Example :
// simple print on stdout #include<stdio.h> int main() { printf("hello geeksquiz"); return 0; } |
Output :
hello geeksquiz
sprintf:
Syntax:
int sprintf(char *str, const char *string,...);
String print function instead of printing on console store it on char buffer which are specified in sprintf
Example :
// Example program to demonstrate sprintf() #include<stdio.h> int main() { char buffer[50]; int a = 10, b = 20, c; c = a + b; sprintf(buffer, "Sum of %d and %d is %d", a, b, c); // The string "sum of 10 and 20 is 30" is stored // into buffer instead of printing on stdout printf("%s", buffer); return 0; } |
Output :
Sum of 10 and 20 is 30
fprintf:
fprintf is used to print the string content in file but not on stdout console.
int fprintf(FILE *fptr, const char *str, ...);
Example :
#include<stdio.h> int main() { int i, n=2; char str[50]; //open file sample.txt in write mode FILE *fptr = fopen("sample.txt", "w"); if (fptr == NULL) { printf("Could not open file"); return 0; } for (i=0; i<n; i++) { puts("Enter a name"); gets(str); fprintf(fptr,"%d.%s
", i, str); } fclose(fptr); return 0; } |
Input: GeeksforGeeks
GeeksQuiz
Output : sample.txt file now having output as
0. GeeksforGeeks
1. GeeksQuiz
Thank you for reading, i will soon update with scanf, fscanf, sscanf keep tuned.
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