Files
pytorch/torch/csrc/jit/frontend/strtod.cpp
Scott Wolchok 7b10a76e05 [PyTorch] Try removing Android strtod implementation (#65713)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/65713

This may not be needed anymore.
ghstack-source-id: 139114284

Test Plan: see if it builds

Reviewed By: dhruvbird

Differential Revision: D31216245

fbshipit-source-id: 29c9c013f94070c7713e46027881cb693b144d36
2021-10-01 11:43:15 -07:00

52 lines
1.3 KiB
C++

// Taken from
// https://github.com/JuliaLang/julia/blob/v1.1.0/src/support/strtod.c
#include <ATen/core/Macros.h>
#include <clocale>
#include <cstdlib>
#if defined(__APPLE__) || defined(__FreeBSD__)
#include <xlocale.h>
#endif
// The following code is derived from the Python function _PyOS_ascii_strtod
// see http://hg.python.org/cpython/file/default/Python/pystrtod.c
//
// Copyright © 2001-2014 Python Software Foundation; All Rights Reserved
//
// The following modifications have been made:
// - Leading spaces are ignored
// - Parsing of hex floats is supported in the derived version
// - Python functions for tolower, isdigit and malloc have been replaced by the
// respective
// C stdlib functions
#include <cctype>
#include <cerrno>
#include <cmath>
#include <cstring>
#include <locale>
namespace torch {
namespace jit {
#ifdef _MSC_VER
C10_EXPORT double strtod_c(const char* nptr, char** endptr) {
static _locale_t loc = _create_locale(LC_ALL, "C");
return _strtod_l(nptr, endptr, loc);
}
#else
C10_EXPORT double strtod_c(const char* nptr, char** endptr) {
/// NOLINTNEXTLINE(hicpp-signed-bitwise)
static locale_t loc = newlocale(LC_ALL_MASK, "C", nullptr);
return strtod_l(nptr, endptr, loc);
}
#endif
C10_EXPORT float strtof_c(const char* nptr, char** endptr) {
return (float)strtod_c(nptr, endptr);
}
} // namespace jit
} // namespace torch