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Diffstat (limited to 'core/fxcrt/fx_basic_gcc.cpp')
| -rw-r--r-- | core/fxcrt/fx_basic_gcc.cpp | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/core/fxcrt/fx_basic_gcc.cpp b/core/fxcrt/fx_basic_gcc.cpp new file mode 100644 index 0000000000..2c9c54c8b6 --- /dev/null +++ b/core/fxcrt/fx_basic_gcc.cpp @@ -0,0 +1,242 @@ +// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#include <cctype> +#include <cwctype> +#include <limits> + +#include "core/include/fxcrt/fx_ext.h" +#include "core/include/fxcrt/fx_string.h" + +template <typename IntType, typename CharType> +IntType FXSYS_StrToInt(const CharType* str) { + if (!str) + return 0; + + bool neg = std::numeric_limits<IntType>::is_signed && *str == '-'; + if (neg) + str++; + + IntType num = 0; + while (*str && FXSYS_isDecimalDigit(*str)) { + IntType val = FXSYS_toDecimalDigit(*str); + if (num > (std::numeric_limits<IntType>::max() - val) / 10) + break; + + num = num * 10 + val; + str++; + } + return neg ? -num : num; +} + +template <typename T, typename UT, typename STR_T> +STR_T FXSYS_IntToStr(T value, STR_T str, int radix) { + if (radix < 2 || radix > 16) { + str[0] = 0; + return str; + } + if (value == 0) { + str[0] = '0'; + str[1] = 0; + return str; + } + int i = 0; + UT uvalue; + if (value < 0) { + str[i++] = '-'; + // Standard trick to avoid undefined behaviour when negating INT_MIN. + uvalue = static_cast<UT>(-(value + 1)) + 1; + } else { + uvalue = value; + } + int digits = 1; + T order = uvalue / radix; + while (order > 0) { + digits++; + order = order / radix; + } + for (int d = digits - 1; d > -1; d--) { + str[d + i] = "0123456789abcdef"[uvalue % radix]; + uvalue /= radix; + } + str[digits + i] = 0; + return str; +} + +#ifdef __cplusplus +extern "C" { +#endif +int32_t FXSYS_atoi(const FX_CHAR* str) { + return FXSYS_StrToInt<int32_t, FX_CHAR>(str); +} +uint32_t FXSYS_atoui(const FX_CHAR* str) { + return FXSYS_StrToInt<uint32_t>(str); +} +int32_t FXSYS_wtoi(const FX_WCHAR* str) { + return FXSYS_StrToInt<int32_t, FX_WCHAR>(str); +} +int64_t FXSYS_atoi64(const FX_CHAR* str) { + return FXSYS_StrToInt<int64_t, FX_CHAR>(str); +} +int64_t FXSYS_wtoi64(const FX_WCHAR* str) { + return FXSYS_StrToInt<int64_t, FX_WCHAR>(str); +} +const FX_CHAR* FXSYS_i64toa(int64_t value, FX_CHAR* str, int radix) { + return FXSYS_IntToStr<int64_t, uint64_t, FX_CHAR*>(value, str, radix); +} +#ifdef __cplusplus +} +#endif +#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ +#ifdef __cplusplus +extern "C" { +#endif +int FXSYS_GetACP() { + return 0; +} +FX_DWORD FXSYS_GetFullPathName(const FX_CHAR* filename, + FX_DWORD buflen, + FX_CHAR* buf, + FX_CHAR** filepart) { + int srclen = FXSYS_strlen(filename); + if (!buf || (int)buflen < srclen + 1) { + return srclen + 1; + } + FXSYS_strcpy(buf, filename); + return srclen; +} +FX_DWORD FXSYS_GetModuleFileName(void* hModule, char* buf, FX_DWORD bufsize) { + return (FX_DWORD)-1; +} +#ifdef __cplusplus +} +#endif +#endif +#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ +#ifdef __cplusplus +extern "C" { +#endif +FXSYS_FILE* FXSYS_wfopen(const FX_WCHAR* filename, const FX_WCHAR* mode) { + return FXSYS_fopen(CFX_ByteString::FromUnicode(filename), + CFX_ByteString::FromUnicode(mode)); +} +char* FXSYS_strlwr(char* str) { + if (!str) { + return NULL; + } + char* s = str; + while (*str) { + *str = FXSYS_tolower(*str); + str++; + } + return s; +} +char* FXSYS_strupr(char* str) { + if (!str) { + return NULL; + } + char* s = str; + while (*str) { + *str = FXSYS_toupper(*str); + str++; + } + return s; +} +FX_WCHAR* FXSYS_wcslwr(FX_WCHAR* str) { + if (!str) { + return NULL; + } + FX_WCHAR* s = str; + while (*str) { + *str = FXSYS_tolower(*str); + str++; + } + return s; +} +FX_WCHAR* FXSYS_wcsupr(FX_WCHAR* str) { + if (!str) { + return NULL; + } + FX_WCHAR* s = str; + while (*str) { + *str = FXSYS_toupper(*str); + str++; + } + return s; +} +int FXSYS_stricmp(const char* dst, const char* src) { + int f, l; + do { + if (((f = (unsigned char)(*(dst++))) >= 'A') && (f <= 'Z')) { + f -= ('A' - 'a'); + } + if (((l = (unsigned char)(*(src++))) >= 'A') && (l <= 'Z')) { + l -= ('A' - 'a'); + } + } while (f && (f == l)); + return (f - l); +} +int FXSYS_wcsicmp(const FX_WCHAR* dst, const FX_WCHAR* src) { + FX_WCHAR f, l; + do { + if (((f = (FX_WCHAR)(*(dst++))) >= 'A') && (f <= 'Z')) { + f -= ('A' - 'a'); + } + if (((l = (FX_WCHAR)(*(src++))) >= 'A') && (l <= 'Z')) { + l -= ('A' - 'a'); + } + } while (f && (f == l)); + return (f - l); +} +char* FXSYS_itoa(int value, char* str, int radix) { + return FXSYS_IntToStr<int32_t, uint32_t, FX_CHAR*>(value, str, radix); +} +#ifdef __cplusplus +} +#endif +#endif +#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ +#ifdef __cplusplus +extern "C" { +#endif +int FXSYS_WideCharToMultiByte(FX_DWORD codepage, + FX_DWORD dwFlags, + const FX_WCHAR* wstr, + int wlen, + FX_CHAR* buf, + int buflen, + const FX_CHAR* default_str, + int* pUseDefault) { + int len = 0; + for (int i = 0; i < wlen; i++) { + if (wstr[i] < 0x100) { + if (buf && len < buflen) { + buf[len] = (FX_CHAR)wstr[i]; + } + len++; + } + } + return len; +} +int FXSYS_MultiByteToWideChar(FX_DWORD codepage, + FX_DWORD dwFlags, + const FX_CHAR* bstr, + int blen, + FX_WCHAR* buf, + int buflen) { + int wlen = 0; + for (int i = 0; i < blen; i++) { + if (buf && wlen < buflen) { + buf[wlen] = bstr[i]; + } + wlen++; + } + return wlen; +} +#ifdef __cplusplus +} +#endif +#endif |