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