/*
   There are a total of 4 entries in the algebraic variable array.
   There are a total of 1 entries in each of the rate and state variable arrays.
   There are a total of 17 entries in the constant variable array.
 */
/*
 * VOI is time in component environment (minute).
 * CONSTANTS[0] is CNA in component antidiuretic_hormone (monovalent_mEq_per_litre).
 * CONSTANTS[1] is PA1 in component antidiuretic_hormone (mmHg).
 * CONSTANTS[12] is ADHNA in component osmotic_control_of_ADH_secretion (dimensionless).
 * CONSTANTS[2] is CNR in component parameter_values (monovalent_mEq_per_litre).
 * CONSTANTS[11] is ADHNA1 in component osmotic_control_of_ADH_secretion (dimensionless).
 * CONSTANTS[14] is ADHPR in component pressure_control_of_ADH_secretion (dimensionless).
 * CONSTANTS[3] is ADHPUL in component parameter_values (mmHg).
 * CONSTANTS[4] is ADHPAM in component parameter_values (per_mmHg2).
 * CONSTANTS[13] is ADHPA in component pressure_control_of_ADH_secretion (mmHg).
 * CONSTANTS[16] is ADH in component total_ADH_secretion (dimensionless).
 * CONSTANTS[5] is ADHINF in component parameter_values (dimensionless).
 * CONSTANTS[15] is ADH1 in component total_ADH_secretion (dimensionless).
 * STATES[0] is ADHC in component ADH_in_blood (dimensionless).
 * CONSTANTS[6] is ADHTC in component parameter_values (minute).
 * ALGEBRAIC[1] is ADHMV in component ADH_effect_on_nonrenal_vascular_resistance (dimensionless).
 * CONSTANTS[7] is ADHVUL in component parameter_values (dimensionless).
 * CONSTANTS[8] is ADHVLL in component parameter_values (dimensionless).
 * ALGEBRAIC[0] is ADHMV1 in component ADH_effect_on_nonrenal_vascular_resistance (dimensionless).
 * ALGEBRAIC[3] is ADHMK in component ADH_effect_on_kidney (dimensionless).
 * CONSTANTS[9] is ADHKLL in component parameter_values (dimensionless).
 * CONSTANTS[10] is ADHKUL in component parameter_values (dimensionless).
 * ALGEBRAIC[2] is ADHMK1 in component ADH_effect_on_kidney (dimensionless).
 * RATES[0] is d/dt ADHC in component ADH_in_blood (dimensionless).
 * There are a total of 2 condition variables.
 */
void
initConsts(double* CONSTANTS, double* RATES, double *STATES)
{
CONSTANTS[0] = 142.035;
CONSTANTS[1] = 103.525;
CONSTANTS[2] = 139;
CONSTANTS[3] = 85;
CONSTANTS[4] = 0.3;
CONSTANTS[5] = 0;
STATES[0] = 1.0;
CONSTANTS[6] = 15;
CONSTANTS[7] = 2.5;
CONSTANTS[8] = 0.93617;
CONSTANTS[9] = 0.2;
CONSTANTS[10] = 5;
CONSTANTS[11] = (CONSTANTS[0] - CONSTANTS[2])/(142.000 - CONSTANTS[2]);
CONSTANTS[12] = (CONSTANTS[11]<0.00000 ? 0.00000 : CONSTANTS[11]);
CONSTANTS[13] = (CONSTANTS[1]>CONSTANTS[3] ? CONSTANTS[3] : CONSTANTS[1]);
CONSTANTS[14] =  pow(CONSTANTS[3] - CONSTANTS[13], 2.00000)*CONSTANTS[4];
CONSTANTS[15] = CONSTANTS[12]+CONSTANTS[14]+CONSTANTS[5];
CONSTANTS[16] = (CONSTANTS[15]<0.00000 ? 0.00000 : CONSTANTS[15]);
RATES[0] = 0.1001;
}
void
computeResiduals(double VOI, double* CONSTANTS, double* RATES, double* OLDRATES, double* STATES,
                 double* OLDSTATES, double* ALGEBRAIC, double* CONDVARS)
{
resid[0] = RATES[0] - (CONSTANTS[16] - STATES[0])/CONSTANTS[6];
}
void
computeVariables(double VOI, double* CONSTANTS, double* RATES, double* STATES, double* ALGEBRAIC)
{
ALGEBRAIC[0] = CONSTANTS[7] - (CONSTANTS[7] - 1.00000)/( ((CONSTANTS[8] - 1.00000)/(CONSTANTS[8] - CONSTANTS[7]))*(STATES[0] - 1.00000)+1.00000);
ALGEBRAIC[1] = (CONDVAR[0]<0.00000 ? CONSTANTS[8] : ALGEBRAIC[0]);
ALGEBRAIC[2] = CONSTANTS[10] - (CONSTANTS[10] - 1.00000)/( ((CONSTANTS[9] - 1.00000)/(CONSTANTS[9] - CONSTANTS[10]))*(STATES[0] - 1.00000)+1.00000);
ALGEBRAIC[3] = (CONDVAR[1]<0.00000 ? CONSTANTS[9] : ALGEBRAIC[2]);
}
void
computeEssentialVariables(double VOI, double* CONSTANTS, double* RATES, double* STATES, double* ALGEBRAIC)
{
}
void
getStateInformation(double* SI)
{
SI[0] = 1.0;
}
void
computeRoots(double VOI, double* CONSTANTS, double* RATES, double* OLDRATES, double* STATES,
             double* OLDSTATES, double* ALGEBRAIC, double* CONDVARS)
{
CONDVAR[0] = ALGEBRAIC[0] - CONSTANTS[8];
CONDVAR[1] = ALGEBRAIC[2] - CONSTANTS[9];
}