VPM-B: add initial gradient calculation.

Calculate the max difference between tissue saturation and ambient
pressure that can be accepted during the ascent.
Partial results are kept for later improving in next CVA iterations

Signed-off-by: Jan Darowski <jan.darowski@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/dive.h b/dive.h
index 8f0f84832..d9885184e 100644
--- a/dive.h
+++ b/dive.h
@@ -784,6 +784,7 @@ extern void set_gf(short gflow, short gfhigh, bool gf_low_at_maxdepth);
 extern void cache_deco_state(double, char **datap);
 extern double restore_deco_state(char *data);
 extern void nuclear_regeneration(double time);
+extern void vpmb_start_gradient();
 
 /* this should be converted to use our types */
 struct divedatapoint {