prepare Qt 5.6 builds

[lyx.git] / src / support / lyxlib.h

diff --git a/src/support/lyxlib.h b/src/support/lyxlib.h
index e76e14c956ed8fe4ab62b671194ebfa181c8aeba..23894ee2ebea1d47d077ca3344ada70edd32e89f 100644 (file)
--- a/src/support/lyxlib.h
+++ b/src/support/lyxlib.h
@@ -7,7 +7,7 @@
  * A selection of useful system functions made
  * handy for C++ usage.
  *
- * \author Lars Gullik Bjønnes
+ * \author Lars Gullik Bjønnes
  *
  * Full author contact details are available in file CREDITS.
  */
@@ -15,43 +15,25 @@
 #ifndef LYX_LIB_H
 #define LYX_LIB_H
 
-#include <string>
+// always include <math.h> (also with MSVC), to avoid compiler specific side effects
+#include <math.h>
 
+#ifdef _MSC_VER
+/// Replacement for C99 round()
+inline double round(double x)
+{
+       if (x < 0)
+               return ceil(x - 0.5);
+       else
+               return floor(x + 0.5);
+}
+#endif
 
 namespace lyx {
 namespace support {
 
-/// get the current working directory
-std::string const getcwd();
-/// change to a directory, 0 is returned on success.
-int chdir(std::string const & name);
-/**
- * rename a file, returns false if it fails.
- * It can handle renames across partitions.
- */
-bool rename(std::string const & from, std::string const & to);
-/// copy a file, returns false it it fails
-bool copy(std::string const & from, std::string const & to);
-/// generates a checksum of a file
-unsigned long sum(std::string const & file);
 /// FIXME: some point to this hmm ?
 int kill(int pid, int sig);
-/// FIXME: same here
-void abort();
-/// create the given directory with the given mode
-int mkdir(std::string const & pathname, unsigned long int mode);
-/// put a C std::string into the environment
-int putenv(char const * str);
-/// unlink the given file
-int unlink(std::string const & file);
-/// remove the given directory
-int rmdir(std::string const & file);
-/// convert the given string to an integer
-int atoi(std::string const & nstr);
-/// (securely) create a temporary file in the given dir with the given prefix
-std::string const tempName(std::string const & dir = std::string(),
-                     std::string const & mask = std::string());
-
 
 /**
  * Returns true if var is approximately equal to number with allowed error
@@ -61,11 +43,17 @@ std::string const tempName(std::string const & dir = std::string(),
  *
  * This will check if 'var' is approx. equal to 'number' with error of 1/1000
  */
-inline bool float_equal(float var, float number, float error)
+inline bool float_equal(double var, double number, double error)
 {
        return (number - error <= var && var <= number + error);
 }
 
+/// round \p x to nearest integer
+inline int iround(double x)
+{
+       return static_cast<int>(round(x));
+}
+
 } // namespace support
 } // namespace lyx