diff options
author | sinanmohd <sinan@firemail.cc> | 2023-04-10 07:45:35 +0530 |
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committer | sinanmohd <sinan@firemail.cc> | 2023-04-10 07:45:35 +0530 |
commit | c14dab7f3a1cf72619fadce9b81b55426dc0b32e (patch) | |
tree | 608080198e6e07c683489644623e2770af6fc69c /5.19/getch.c | |
parent | 3594391322954f6538087b1af480cf00fd8da2c8 (diff) |
5.19: initial commit, make use of makefiles and split main into multiple files
Diffstat (limited to '5.19/getch.c')
-rw-r--r-- | 5.19/getch.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/5.19/getch.c b/5.19/getch.c new file mode 100644 index 0000000..e41671e --- /dev/null +++ b/5.19/getch.c @@ -0,0 +1,22 @@ +#include <stdlib.h> +#include <stdio.h> +#include "err.h" +#include "getch.h" + +#define MAXBUFF 100 + +char buff[MAXBUFF]; +static size_t top; + +void ungetch(char c) +{ + if (top < MAXBUFF) + buff[top++] = c; + else + err("buff: stack overflow"); +} + +char getch(void) +{ + return (top > 0) ? buff[--top] : getchar(); +} |