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authorDan Sinclair <dsinclair@chromium.org>2017-08-31 16:08:39 -0400
committerChromium commit bot <commit-bot@chromium.org>2017-08-31 20:29:45 +0000
commita864419a26164350a27ff03f34fa30d0166bc077 (patch)
tree174ed423bdd19e7acfdd699d39292cc2255e0bc8 /core/fxcrt/fx_system.cpp
parent2a1c8ac53f249bfe2789ea95170f11d308992449 (diff)
downloadpdfium-a864419a26164350a27ff03f34fa30d0166bc077.tar.xz
Move implementations into fx_system.cpp
This CL moves code defined in fx_system.h to be implemented in fx_system.cpp. Change-Id: I0c19066d4497bd208f4560fdcaf57cf04bf9f146 Reviewed-on: https://pdfium-review.googlesource.com/12674 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
Diffstat (limited to 'core/fxcrt/fx_system.cpp')
-rw-r--r--core/fxcrt/fx_system.cpp209
1 files changed, 206 insertions, 3 deletions
diff --git a/core/fxcrt/fx_system.cpp b/core/fxcrt/fx_system.cpp
index 83f761ff85..bf13ad2e5e 100644
--- a/core/fxcrt/fx_system.cpp
+++ b/core/fxcrt/fx_system.cpp
@@ -8,7 +8,81 @@
#include <limits>
-extern "C" int FXSYS_round(float d) {
+#include "core/fxcrt/fx_extension.h"
+
+namespace {
+
+template <typename IntType, typename CharType>
+IntType FXSYS_StrToInt(const CharType* str) {
+ if (!str)
+ return 0;
+
+ // Process the sign.
+ bool neg = *str == '-';
+ if (neg || *str == '+')
+ str++;
+
+ IntType num = 0;
+ while (*str && FXSYS_isDecimalDigit(*str)) {
+ IntType val = FXSYS_DecimalCharToInt(*str);
+ if (num > (std::numeric_limits<IntType>::max() - val) / 10) {
+ if (neg && std::numeric_limits<IntType>::is_signed) {
+ // Return MIN when the represented number is signed type and is smaller
+ // than the min value.
+ return std::numeric_limits<IntType>::min();
+ } else {
+ // Return MAX when the represented number is signed type and is larger
+ // than the max value, or the number is unsigned type and out of range.
+ return std::numeric_limits<IntType>::max();
+ }
+ }
+
+ num = num * 10 + val;
+ str++;
+ }
+ // When it is a negative value, -num should be returned. Since num may be of
+ // unsigned type, use ~num + 1 to avoid the warning of applying unary minus
+ // operator to unsigned type.
+ return neg ? ~num + 1 : 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;
+}
+
+} // namespace
+
+int FXSYS_round(float d) {
if (d < static_cast<float>(std::numeric_limits<int>::min()))
return std::numeric_limits<int>::min();
if (d > static_cast<float>(std::numeric_limits<int>::max()))
@@ -16,7 +90,136 @@ extern "C" int FXSYS_round(float d) {
return static_cast<int>(round(d));
}
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
+int32_t FXSYS_atoi(const char* str) {
+ return FXSYS_StrToInt<int32_t, char>(str);
+}
+uint32_t FXSYS_atoui(const char* str) {
+ return FXSYS_StrToInt<uint32_t>(str);
+}
+int32_t FXSYS_wtoi(const wchar_t* str) {
+ return FXSYS_StrToInt<int32_t, wchar_t>(str);
+}
+int64_t FXSYS_atoi64(const char* str) {
+ return FXSYS_StrToInt<int64_t, char>(str);
+}
+const char* FXSYS_i64toa(int64_t value, char* str, int radix) {
+ return FXSYS_IntToStr<int64_t, uint64_t, char*>(value, str, radix);
+}
+
+#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
+
+int FXSYS_GetACP() {
+ return 0;
+}
+
+char* FXSYS_strlwr(char* str) {
+ if (!str) {
+ return nullptr;
+ }
+ char* s = str;
+ while (*str) {
+ *str = FXSYS_tolower(*str);
+ str++;
+ }
+ return s;
+}
+char* FXSYS_strupr(char* str) {
+ if (!str) {
+ return nullptr;
+ }
+ char* s = str;
+ while (*str) {
+ *str = FXSYS_toupper(*str);
+ str++;
+ }
+ return s;
+}
+wchar_t* FXSYS_wcslwr(wchar_t* str) {
+ if (!str) {
+ return nullptr;
+ }
+ wchar_t* s = str;
+ while (*str) {
+ *str = FXSYS_tolower(*str);
+ str++;
+ }
+ return s;
+}
+wchar_t* FXSYS_wcsupr(wchar_t* str) {
+ if (!str) {
+ return nullptr;
+ }
+ wchar_t* s = str;
+ while (*str) {
+ *str = FXSYS_toupper(*str);
+ str++;
+ }
+ return s;
+}
+
+int FXSYS_stricmp(const char* dst, const char* src) {
+ int f;
+ int l;
+ do {
+ f = FXSYS_toupper(*dst);
+ l = FXSYS_toupper(*src);
+ ++dst;
+ ++src;
+ } while (f && f == l);
+ return f - l;
+}
+
+int FXSYS_wcsicmp(const wchar_t* dst, const wchar_t* src) {
+ wchar_t f;
+ wchar_t l;
+ do {
+ f = FXSYS_toupper(*dst);
+ l = FXSYS_toupper(*src);
+ ++dst;
+ ++src;
+ } while (f && f == l);
+ return f - l;
+}
+
+char* FXSYS_itoa(int value, char* str, int radix) {
+ return FXSYS_IntToStr<int32_t, uint32_t, char*>(value, str, radix);
+}
+
+int FXSYS_WideCharToMultiByte(uint32_t codepage,
+ uint32_t dwFlags,
+ const wchar_t* wstr,
+ int wlen,
+ char* buf,
+ int buflen,
+ const 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] = static_cast<char>(wstr[i]);
+ len++;
+ }
+ }
+ return len;
+}
+int FXSYS_MultiByteToWideChar(uint32_t codepage,
+ uint32_t dwFlags,
+ const char* bstr,
+ int blen,
+ wchar_t* buf,
+ int buflen) {
+ int wlen = 0;
+ for (int i = 0; i < blen; i++) {
+ if (buf && wlen < buflen) {
+ buf[wlen] = bstr[i];
+ }
+ wlen++;
+ }
+ return wlen;
+}
+
+#else // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
size_t FXSYS_wcsftime(wchar_t* strDest,
size_t maxsize,
@@ -36,4 +239,4 @@ size_t FXSYS_wcsftime(wchar_t* strDest,
return wcsftime(strDest, maxsize, format, timeptr);
}
-#endif // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
+#endif // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_