Index: /issm/trunk-jpl/src/c/objects/Loads/Friction.cpp
===================================================================
--- /issm/trunk-jpl/src/c/objects/Loads/Friction.cpp	(revision 12482)
+++ /issm/trunk-jpl/src/c/objects/Loads/Friction.cpp	(revision 12483)
@@ -107,8 +107,8 @@
 		vmag=sqrt(pow(vx,2)+pow(vy,2)+pow(vz,2));
 	}
-	else _error_("element_type %s not supported yet",element_type);
+	else _error2_("element_type "<< element_type << " not supported yet");
 
 	/*Checks that s-1>0 if v=0*/
-	if(vmag==0 && (s-1)<0) _error_("velocity is 0 ans (s-1)=%g<0, alpha_complement is Inf",s-1);
+        if(vmag==0 && (s-1)<0) _error2_("velocity is 0 and (s-1)=" << (s-1) << "<0, alpha_complement is Inf");
 
 	alpha2=pow(drag_coefficient,2)*pow(Neff,r)*pow(vmag,(s-1));
@@ -171,8 +171,8 @@
 		vmag=sqrt(pow(vx,2)+pow(vy,2)+pow(vz,2));
 	}
-	else _error_("element_type %s not supported yet",element_type);
+	else _error2_("element_type "<< element_type << " not supported yet");
 
 	/*Checks that s-1>0 if v=0*/
-	if(vmag==0 && (s-1)<0) _error_("velocity is 0 ans (s-1)=%g<0, alpha_complement is Inf",s-1);
+	if(vmag==0 && (s-1)<0) _error2_("velocity is 0 and (s-1)=" << (s-1) << "<0, alpha_complement is Inf");
 
 	alpha2=pow(drag_coefficient,2)*pow(Neff,r)*pow(vmag,(s-1));
@@ -238,8 +238,8 @@
 		vmag=sqrt(pow(vx,2)+pow(vy,2)+pow(vz,2));
 	}
-	else _error_("element_type %s not supported yet",element_type);
+	else _error2_("element_type "<< element_type << " not supported yet");
 
 	/*Checks that s-1>0 if v=0*/
-	if(vmag==0 && (s-1)<0) _error_("velocity is 0 ans (s-1)=%g<0, alpha_complement is Inf",s-1);
+	if(vmag==0 && (s-1)<0) _error2_("velocity is 0 and (s-1)=" << (s-1) << "<0, alpha_complement is Inf");
 
 	alpha_complement=pow(Neff,r)*pow(vmag,(s-1));            _assert_(!isnan(alpha_complement));
@@ -304,8 +304,8 @@
 		vmag=sqrt(pow(vx,2)+pow(vy,2)+pow(vz,2));
 	}
-	else _error_("element_type %s not supported yet",element_type);
+	else _error2_("element_type "<< element_type << " not supported yet");
 
 	/*Checks that s-1>0 if v=0*/
-	if(vmag==0 && (s-1)<0) _error_("velocity is 0 ans (s-1)=%g<0, alpha_complement is Inf",s-1);
+	if(vmag==0 && (s-1)<0) _error2_("velocity is 0 and (s-1)=" << (s-1) << "<0, alpha_complement is Inf");
 
 	alpha_complement=pow(Neff,r)*pow(vmag,(s-1));            _assert_(!isnan(alpha_complement));
@@ -319,5 +319,5 @@
 
 	Input* input=inputs->GetInput(enum_type);
-	if(!input) _error_("input %s not found",EnumToStringx(enum_type));
+	if(!input) _error2_("input " << EnumToStringx(enum_type) << " not found");
 	input->GetInputValue(pvalue,gauss);
 
@@ -328,5 +328,5 @@
 
 	Input* input=inputs->GetInput(enum_type);
-	if(!input) _error_("input %s not found",EnumToStringx(enum_type));
+	if(!input) _error2_("input " << EnumToStringx(enum_type) << " not found");
 	input->GetInputValue(pvalue,gauss);