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//===-- lib/Common/idioms.cpp ---------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "flang/Common/idioms.h"
#include <cstdarg>
#include <cstdio>
#include <cstdlib>
namespace Fortran::common {
[[noreturn]] void die(const char *msg, ...) {
va_list ap;
va_start(ap, msg);
std::fputs("\nfatal internal error: ", stderr);
std::vfprintf(stderr, msg, ap);
va_end(ap);
fputc('\n', stderr);
std::abort();
}
// Convert the int index of an enumerator to a string.
// enumNames is a list of the names, separated by commas with optional spaces.
// This is intended for use from the expansion of ENUM_CLASS.
std::string EnumIndexToString(int index, const char *enumNames) {
const char *p{enumNames};
for (; index > 0; --index, ++p) {
for (; *p && *p != ','; ++p) {
}
}
for (; *p == ' '; ++p) {
}
CHECK(*p != '\0');
const char *q = p;
for (; *q && *q != ' ' && *q != ','; ++q) {
}
return std::string(p, q - p);
}
} // namespace Fortran::common
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