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