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Better warning for alpha0 model being missing; closes #1198

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This commit is contained in:
Ian Bell
2016-08-23 20:06:06 -06:00
parent 779ef0e8c3
commit bf3a674363
1 changed files with 3 additions and 3 deletions
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6
src/Backends/Helmholtz/HelmholtzEOSMixtureBackend.cpp
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@@ -2841,6 +2841,9 @@ CoolPropDbl HelmholtzEOSMixtureBackend::calc_alpha0_deriv_nocache(const int nTau
const CoolPropDbl &tau, const CoolPropDbl &delta, const CoolPropDbl &Tr, const CoolPropDbl &rhor)
{
CoolPropDbl val;
if (components.size() == 0){
throw ValueError("No alpha0 derivatives are available");
}
if (is_pure_or_pseudopure)
{
if (nTau == 0 && nDelta == 0){
@@ -2890,9 +2893,6 @@ CoolPropDbl HelmholtzEOSMixtureBackend::calc_alpha0_deriv_nocache(const int nTau
std::size_t N = mole_fractions.size();
CoolPropDbl summer = 0;
CoolPropDbl tau_i, delta_i, rho_ci, T_ci;
if (components.size() == 0){
throw ValueError("Cannot evaluate alpha0 derivatives since components is empty");
}
for (unsigned int i = 0; i < N; ++i){
rho_ci = components[i].EOS().reduce.rhomolar;
T_ci = components[i].EOS().reduce.T;