putc - Write a character to a file

Definition	#include <stdio.h> int putc(int c, FILE *fp); putc writes the character c to the file with file pointer fp at the current read/write position.
Return val.	The written character c
		if successful.
	EOF	otherwise.
Notes	putc is implemented both as a macro and as a function (see section “Functions and macros”). The characters are not written immediately to the external file but are stored in an internal C buffer (see section “Buffering” (Basic terms)). Control characters for white space (\n, \t, etc.) are converted to their appropriate effect when output to text files, depending on the type of text file (see section “White space” (Basic terms)).
Example	The following program reads characters from the standard input and writes them to the file fnam. #include <stdio.h> FILE *fp; int c; int main(void) { fp = fopen("fnam","w"); while((c=getchar()) != EOF) putc((char)c,fp); fclose(fp); return 0; }
See also	fputc, printf, putchar, fopen, fopen64, putwc