1 files changed, 121 insertions, 0 deletions
diff --git a/bin/c.sh b/bin/c.sh
new file mode 100644
index 00000000..ff059437
--- /dev/null
+++ b/bin/c.sh
@@ -0,0 +1,121 @@
+#!/bin/sh
+set -eu
+
+temp=$(mktemp -d)
+trap 'rm -r "${temp}"' EXIT
+
+exec 3>>"${temp}/run.c"
+
+cat >&3 <<EOF
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <locale.h>
+#include <math.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <wchar.h>
+#include <wctype.h>
+
+#include <dirent.h>
+#include <fcntl.h>
+#include <strings.h>
+#include <unistd.h>
+EOF
+
+expr=
+type=
+while getopts 'e:i:t' opt; do
+	case "${opt}" in
+		(e) expr=$OPTARG;;
+		(i) echo "#include <${OPTARG}>" >&3;;
+		(t) type=1;;
+		(?) exit 1;;
+	esac
+done
+shift $((OPTIND - 1))
+
+cat >&3 <<EOF
+int main(int argc, char *argv[]) {
+	(void)argc;
+	(void)argv;
+	$*;
+EOF
+
+if [ -n "${type}" ]; then
+	cat >&3 <<EOF
+	printf(
+		_Generic(
+			${expr},
+			char: "(char) ",
+			char *: "(char *) ",
+			const char *: "(const char *) ",
+			wchar_t *: "(wchar_t *) ",
+			const wchar_t *: "(const wchar_t *) ",
+			signed char: "(signed char) ",
+			short: "(short) ",
+			int: "(int) ",
+			long: "(long) ",
+			long long: "(long long) ",
+			unsigned char: "(unsigned char) ",
+			unsigned short: "(unsigned short) ",
+			unsigned int: "(unsigned int) ",
+			unsigned long: "(unsigned long) ",
+			unsigned long long: "(unsigned long long) ",
+			float: "(float) ",
+			double: "(double) ",
+			long double: "(long double) ",
+			default: "(void *) "
+		)
+	);
+EOF
+fi
+
+if [ -n "${expr}" ]; then
+	cat >&3 <<EOF
+	printf(
+		_Generic(
+			${expr},
+			char: "%c\n",
+			char *: "%s\n",
+			const char *: "%s\n",
+			wchar_t *: "%ls\n",
+			const wchar_t *: "%ls\n",
+			signed char: "%hhd\n",
+			short: "%hd\n",
+			int: "%d\n",
+			long: "%ld\n",
+			long long: "%lld\n",
+			unsigned char: "%hhu\n",
+			unsigned short: "%hu\n",
+			unsigned int: "%u\n",
+			unsigned long: "%lu\n",
+			unsigned long long: "%llu\n",
+			float: "%g\n",
+			double: "%g\n",
+			long double: "%Lg\n",
+			default: "%p\n"
+		),
+		${expr}
+	);
+EOF
+fi
+
+if [ $# -eq 0 -a -z "${expr}" ]; then
+	cat >&3
+fi
+
+echo '}' >&3
+
+cat >"${temp}/Makefile" <<EOF
+CFLAGS += -Wall -Wextra -Wpedantic
+EOF
+
+make -s -C "${temp}" run
+"${temp}/run"