Fix for bug #28240: "isinf()" cannot be used in C++ for lack of prototype

Since isinf() portability across various platforms and compilers is a complicated question, we should not use it directly. Instead, the my_isinf() macro should be used, which is defined as an alias to the system-defined isinf() if it is safe to use, or a workaround implementation otherwise.

1 files changed, 1 insertions, 1 deletions

diff --git a/strings/strtod.c b/strings/strtod.c
index 15707a9b944..7196cafb2c9 100644
--- a/strings/strtod.c
+++ b/strings/strtod.c
@@ -194,7 +194,7 @@ double my_strtod(const char *str, char **end_ptr, int *error)
 done:
   *end_ptr= (char*) str;                        /* end of number */
 
-  if (overflow || isinf(result))
+  if (overflow || my_isinf(result))
   {
     result= DBL_MAX;
     *error= EOVERFLOW;