vim-patch:8.0.0158

Problem:    On MS-Windows some float functions return a different value when
            passed unusual values.  strtod() doesn't work for "inf" and "nan".
Solution:   Accept both results.  Fix str2float() for MS-Windows.  Also
            reorder assert function arguments.

https://github.com/vim/vim/commit/6247361101dcccc0c877e90ad67cd0cc83df7c68

1 files changed, 13 insertions, 0 deletions

diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index c9da08acd0..612c3be368 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -5898,6 +5898,19 @@ size_t string2float(const char *const text, float_T *const ret_value)
 {
   char *s = NULL;
 
+  // MS-Windows does not deal with "inf" and "nan" properly
+  if (STRNICMP(text, "inf", 3) == 0) {
+    *ret_value = INFINITY;
+    return 3;
+  }
+  if (STRNICMP(text, "-inf", 3) == 0) {
+    *ret_value = -INFINITY;
+    return 4;
+  }
+  if (STRNICMP(text, "nan", 3) == 0) {
+    *ret_value = NAN;
+    return 3;
+  }
   *ret_value = strtod(text, &s);
   return (size_t) (s - text);
 }