From a55065f4745f5f340eb6dffbd88fe2fb05a40625 Mon Sep 17 00:00:00 2001
From: Ian Jauslin <ian@jauslin.org>
Date: Wed, 25 May 2022 11:12:02 -0400
Subject: add L parameter

---
 src/main.c | 30 ++++++++++++++++++++----------
 1 file changed, 20 insertions(+), 10 deletions(-)

(limited to 'src/main.c')

diff --git a/src/main.c b/src/main.c
index 27bfb7a..3d8867e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -14,8 +14,8 @@ int print_usage();
 
 // read command line arguments
 int read_args(int argc, const char* argv[], char** params, unsigned int* driving_force, unsigned int* command, unsigned int* nthreads);
-int read_params(char* params, int* K1, int* K2, int* N1, int* N2, unsigned int* nsteps, double* nu, double* delta, unsigned int* print_freq);
-int set_parameter(char* lhs, char* rhs, int* K1, int* K2, int* N1, int* N2, unsigned int* nsteps, double* nu, double* delta, unsigned int* print_freq, bool* setN1, bool* setN2);
+int read_params(char* params, int* K1, int* K2, int* N1, int* N2, unsigned int* nsteps, double* nu, double* delta, double* L, unsigned int* print_freq);
+int set_parameter(char* lhs, char* rhs, int* K1, int* K2, int* N1, int* N2, unsigned int* nsteps, double* nu, double* delta, double* L, unsigned int* print_freq, bool* setN1, bool* setN2);
 
 
 #define COMMAND_UK 1
@@ -35,7 +35,7 @@ int main (
   int K1,K2;
   int N1,N2;
   unsigned int nsteps;
-  double nu,delta;
+  double nu,delta,L;
   _Complex double (*g)(int,int);
   int ret;
   unsigned int driving,command;
@@ -51,7 +51,7 @@ int main (
     return(-1);
   }
   // read params
-  ret=read_params(params, &K1, &K2, &N1, &N2, &nsteps, &nu, &delta, &print_freq);
+  ret=read_params(params, &K1, &K2, &N1, &N2, &nsteps, &nu, &delta, &L, &print_freq);
   if(ret<0){
     return(-1);
   }
@@ -71,16 +71,16 @@ int main (
 
   // run command
   if (command==COMMAND_UK){
-    uk(K1, K2, N1, N2, nsteps, nu, delta, g, print_freq, nthreads);
+    uk(K1, K2, N1, N2, nsteps, nu, delta, L, g, print_freq, nthreads);
   }
   else if (command==COMMAND_ENERGY){
-    energy(K1, K2, N1, N2, nsteps, nu, delta, g, print_freq, nthreads);
+    energy(K1, K2, N1, N2, nsteps, nu, delta, L, g, print_freq, nthreads);
   }
   else if(command==COMMAND_ENSTROPHY){
-    energy(K1, K2, N1, N2, nsteps, nu, delta, g, print_freq, nthreads);
+    energy(K1, K2, N1, N2, nsteps, nu, delta, L, g, print_freq, nthreads);
   }
   else if(command==COMMAND_QUIET){
-    quiet(K1, K2, N1, N2, nsteps, nu, delta, g, nthreads);
+    quiet(K1, K2, N1, N2, nsteps, nu, delta, L, g, nthreads);
   }
   else if(command==0){
     fprintf(stderr, "error: no command specified\n");
@@ -201,6 +201,7 @@ int read_params(
   unsigned int* nsteps,
   double* nu,
   double* delta,
+  double* L,
   unsigned int* print_freq
 ){
   int ret;
@@ -222,6 +223,7 @@ int read_params(
   *delta=0.0001220703125;
   //nu=2^-11
   *nu=0.00048828125;
+  *L=2*M_PI;
   *nsteps=10000000;
   *print_freq=1000;
 
@@ -244,7 +246,7 @@ int read_params(
 	break;
       case ';':
 	//set parameter
-	ret=set_parameter(buffer_lhs,buffer_rhs,K1,K2,N1,N2,nsteps,nu,delta,print_freq,&setN1,&setN2);
+	ret=set_parameter(buffer_lhs,buffer_rhs,K1,K2,N1,N2,nsteps,nu,delta,L,print_freq,&setN1,&setN2);
 	if(ret<0){
 	  return ret;
 	}
@@ -271,7 +273,7 @@ int read_params(
 
     // set last param
     if (*params!='\0'){
-      ret=set_parameter(buffer_lhs,buffer_rhs,K1,K2,N1,N2,nsteps,nu,delta,print_freq,&setN1,&setN2);
+      ret=set_parameter(buffer_lhs,buffer_rhs,K1,K2,N1,N2,nsteps,nu,delta,L,print_freq,&setN1,&setN2);
       if(ret<0){
 	return ret;
       }
@@ -305,6 +307,7 @@ int set_parameter(
   unsigned int* nsteps,
   double* nu,
   double* delta,
+  double* L,
   unsigned int* print_freq,
   bool* setN1,
   bool* setN2
@@ -380,6 +383,13 @@ int set_parameter(
       return(-1);
     }
   }
+  else if (strcmp(lhs,"L")==0){
+    ret=sscanf(rhs,"%lf",L);
+    if(ret!=1){
+      fprintf(stderr, "error: parameter 'L' should be a double\n       got '%s'\n",rhs);
+      return(-1);
+    }
+  }
   else if (strcmp(lhs,"print_freq")==0){
     ret=sscanf(rhs,"%u",print_freq);
     if(ret!=1){
-- 
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