What is return type of getchar(), fgetc() and getc() ?
In C, return type of getchar(), fgetc() and getc() is int (not char). So it is recommended to assign the returned values of these functions to an integer type variable.
char ch; /* May cause problems */ while ((ch = getchar()) != EOF) { putchar(ch);} |
Here is a version that uses integer to compare the value of getchar().
int in; while ((in = getchar()) != EOF) { putchar(in);} |
See this for more details.
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