remove check for finite/isfinite

finite is not used anymore in code base. isfinite is part of C99 and we
assume we only support compilers that support C99.

cmake/os/Windows.cmake

@@ -262,7 +262,6 @@ CHECK_SYMBOL_REPLACEMENT(S_IFIFO _S_IFIFO sys/stat.h)
 CHECK_SYMBOL_REPLACEMENT(SIGQUIT SIGTERM signal.h)
 CHECK_SYMBOL_REPLACEMENT(SIGPIPE SIGINT signal.h)
 CHECK_SYMBOL_REPLACEMENT(isnan _isnan "math.h;float.h")
-CHECK_SYMBOL_REPLACEMENT(finite _finite "math;float.h")
 CHECK_FUNCTION_REPLACEMENT(popen _popen)
 CHECK_FUNCTION_REPLACEMENT(pclose _pclose)
 CHECK_FUNCTION_REPLACEMENT(access _access)

cmake/os/WindowsCache.cmake

@@ -52,8 +52,6 @@ SET(HAVE_DECL_FDATASYNC CACHE INTERNAL "")
 SET(HAVE_FEDISABLEEXCEPT CACHE INTERNAL "")
 SET(HAVE_FENV_H CACHE  INTERNAL "")
 SET(HAVE_FESETROUND CACHE  INTERNAL "")
-SET(HAVE_FINITE CACHE  INTERNAL "")
-SET(HAVE_FINITE_IN_MATH_H CACHE  INTERNAL "")
 SET(HAVE_FLOAT_H 1 CACHE  INTERNAL "")
 SET(HAVE_FNMATCH_H CACHE  INTERNAL "")
 SET(HAVE_FPU_CONTROL_H CACHE  INTERNAL "")

config.h.cmake

@@ -140,7 +140,6 @@
 #cmakedefine HAVE_DECL_FDATASYNC 1
 #cmakedefine HAVE_FEDISABLEEXCEPT 1
 #cmakedefine HAVE_FESETROUND 1
-#cmakedefine HAVE_FINITE 1
 #cmakedefine HAVE_FP_EXCEPT 1
 #cmakedefine HAVE_FSEEKO 1
 #cmakedefine HAVE_FSYNC 1
@@ -422,7 +421,6 @@
 #cmakedefine SIGQUIT @SIGQUIT@
 #cmakedefine SIGPIPE @SIGPIPE@
 #cmakedefine isnan @isnan@
-#cmakedefine finite @finite@
 #cmakedefine popen @popen@
 #cmakedefine pclose @pclose@
 #cmakedefine ssize_t @ssize_t@

configure.cmake

@@ -477,12 +477,6 @@ CHECK_SYMBOL_EXISTS(TIOCSTAT "sys/ioctl.h" TIOCSTAT_IN_SYS_IOCTL)
 CHECK_SYMBOL_EXISTS(FIONREAD "sys/filio.h" FIONREAD_IN_SYS_FILIO)
 CHECK_SYMBOL_EXISTS(gettimeofday "sys/time.h" HAVE_GETTIMEOFDAY)
 
-CHECK_SYMBOL_EXISTS(finite  "math.h" HAVE_FINITE_IN_MATH_H)
-IF(HAVE_FINITE_IN_MATH_H)
-  SET(HAVE_FINITE TRUE CACHE INTERNAL "")
-ELSE()
-  CHECK_SYMBOL_EXISTS(finite  "ieeefp.h" HAVE_FINITE)
-ENDIF()
 CHECK_SYMBOL_EXISTS(log2  math.h HAVE_LOG2)
 CHECK_SYMBOL_EXISTS(isnan math.h HAVE_ISNAN)
 CHECK_SYMBOL_EXISTS(rint  math.h HAVE_RINT)

include/my_global.h

@@ -828,14 +828,6 @@ inline unsigned long long my_double2ulonglong(double d)
 #define SIZE_T_MAX      (~((size_t) 0))
 #endif
 
-#ifndef HAVE_FINITE
-#define finite(x) (1.0 / fabs(x) > 0.0)
-#endif
-
-#ifndef isfinite
-#define isfinite(x) finite(x)
-#endif
-
 #ifndef HAVE_ISNAN
 #define isnan(x) ((x) != (x))
 #endif
@@ -848,9 +840,6 @@ inline unsigned long long my_double2ulonglong(double d)
 
 #ifdef __cplusplus
 #include <cmath>
-#ifndef isfinite
-#define isfinite(X) std::isfinite(X)
-#endif
 #ifndef isnan
 #define isnan(X) std::isnan(X)
 #endif