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author | Rogier-5 <rogier777@gmail.com> | 2016-08-11 19:22:40 +0200 |
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committer | est31 <est31@users.noreply.github.com> | 2016-08-11 19:22:40 +0200 |
commit | b11720af459d44a553cb5d23ef776a632fb30a65 (patch) | |
tree | 78618a26db2ee19e892961b73a26db66fd889e4e /src | |
parent | 35f47e5461042b3d190f8ea583aec2aa26f1c484 (diff) | |
download | minetest-b11720af459d44a553cb5d23ef776a632fb30a65.tar.gz minetest-b11720af459d44a553cb5d23ef776a632fb30a65.tar.bz2 minetest-b11720af459d44a553cb5d23ef776a632fb30a65.zip |
Use the standard to_string() functions for C++11 (#4279)
If compiling according to a C++ version before C++11, then define
std::to_string ourselves.
Add a to_wstring version as well
As std::to_string() for floating point types uses %.6f as floating
point format converter, instead of %G, it needs special care.
To preserve ftos() behavior (which is expected to use the %G format
converter), it no longer uses to_string().
Diffstat (limited to 'src')
-rw-r--r-- | src/client.cpp | 2 | ||||
-rw-r--r-- | src/util/string.h | 47 |
2 files changed, 42 insertions, 7 deletions
diff --git a/src/client.cpp b/src/client.cpp index 4ffcec6ba..483b22caa 100644 --- a/src/client.cpp +++ b/src/client.cpp @@ -820,7 +820,7 @@ void Client::initLocalMapSaving(const Address &address, const std::string world_path = porting::path_user + DIR_DELIM + "worlds" + DIR_DELIM + "server_" - + hostname + "_" + to_string(address.getPort()); + + hostname + "_" + std::to_string(address.getPort()); fs::CreateAllDirs(world_path); diff --git a/src/util/string.h b/src/util/string.h index 8f4ef4711..724543a36 100644 --- a/src/util/string.h +++ b/src/util/string.h @@ -27,6 +27,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include <vector> #include <map> #include <sstream> +#include <iomanip> #include <cctype> #define STRINGIFY(x) #x @@ -350,23 +351,57 @@ inline T from_string(const std::string &str) /// Returns a 64-bit signed value represented by the string \p str (decimal). inline s64 stoi64(const std::string &str) { return from_string<s64>(str); } -// TODO: Replace with C++11 std::to_string. +#if __cplusplus < 201103L +namespace std { /// Returns a string representing the value \p val. template <typename T> -inline std::string to_string(T val) +inline string to_string(T val) { - std::ostringstream oss; + ostringstream oss; oss << val; return oss.str(); } +#define DEFINE_STD_TOSTRING_FLOATINGPOINT(T) \ + template <> \ + inline string to_string<T>(T val) \ + { \ + ostringstream oss; \ + oss << std::fixed \ + << std::setprecision(6) \ + << val; \ + return oss.str(); \ + } +DEFINE_STD_TOSTRING_FLOATINGPOINT(float) +DEFINE_STD_TOSTRING_FLOATINGPOINT(double) +DEFINE_STD_TOSTRING_FLOATINGPOINT(long double) + +#undef DEFINE_STD_TOSTRING_FLOATINGPOINT + +/// Returns a wide string representing the value \p val +template <typename T> +inline wstring to_wstring(T val) +{ + return utf8_to_wide(to_string(val)); +} +} +#endif /// Returns a string representing the decimal value of the 32-bit value \p i. -inline std::string itos(s32 i) { return to_string(i); } +inline std::string itos(s32 i) { return std::to_string(i); } /// Returns a string representing the decimal value of the 64-bit value \p i. -inline std::string i64tos(s64 i) { return to_string(i); } +inline std::string i64tos(s64 i) { return std::to_string(i); } + +// std::to_string uses the '%.6f' conversion, which is inconsistent with +// std::ostream::operator<<() and impractical too. ftos() uses the +// more generic and std::ostream::operator<<()-compatible '%G' format. /// Returns a string representing the decimal value of the float value \p f. -inline std::string ftos(float f) { return to_string(f); } +inline std::string ftos(float f) +{ + std::ostringstream oss; + oss << f; + return oss.str(); +} /** |