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| #redirect ] | |||
| {{merge to|C_file_input/output|date=October 2011}} | |||
| '''getc''' is one of the character input function. getc reads next character from file and it needs file pointer to tell it which file. It is simplest function to read the file. | |||
| Like ], getc() may be implemented macro instead of function. getc is equivalent to ]. | |||
| getc returns the next character from the stream referred to by fp; it returns EOF for End Of File or error. | |||
| ==Syntax== | |||
| int getc( FILE * stream); | |||
| Here, parameter stream is the pointer to a FILE object which identify the stream on which the operation is to be performed. | |||
| ==Example== | |||
| /*getc example*/ | |||
| <Source lang="c"> | |||
| #include <stdio.h> | |||
| int main() | |||
| { | |||
| FILE *fp; | |||
| int c; | |||
| int n = 0; | |||
| fp = fopen("myfile.txt", "r"); | |||
| if(fp == NULL) | |||
| perror ("Error opening file"); | |||
| else | |||
| { | |||
| do { | |||
| c = getc(fp); | |||
| if(c == '#') | |||
| n++; | |||
| } | |||
| while(c != EOF); | |||
| fclose(fp); | |||
| printf ("File contains %d#.\n",n); | |||
| } | |||
| return 0; | |||
| } | |||
| </source> | |||
| Above program read the file called myfile.txt character by character and uses n variable to count '#' character contained in file. | |||
| ==Return Value== | |||
| Character read is returned as an int value. | |||
| If the End-of-File is reached or error in reading occurs, function returns EOF and corresponding error indicator. We can use either ] or ] to determine whether an error happened or EOF reached. | |||
| ==See also== | |||
| ] | |||
| ] | |||
| ] | |||
| ==Reference== | |||
| * | |||
| * | |||
| ==External links== | |||
| * | |||
| ] | |||
Revision as of 17:20, 29 October 2011
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