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	tpass pointer to structure instead of structure - slidergrid - grid of elastic …
	git clone git://src.adamsgaard.dk/slidergrid
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	---
	commit d45ab4c31a7de996f1785ca5d8fb7bc17c06c9dc
	parent 695b94d0b8c81fbbcfca476c06eda313facaf72c
	Author: Anders Damsgaard <[email protected]>
	Date: Thu, 17 Mar 2016 16:49:15 -0700

	pass pointer to structure instead of structure

	Diffstat:
	M slidergrid/main.c \| 4 ++--
	M slidergrid/simulation.c \| 16 ++++++++--------
	M slidergrid/simulation.h \| 3 ++-

	3 files changed, 12 insertions(+), 11 deletions(-)
	---
	diff --git a/slidergrid/main.c b/slidergrid/main.c
	t@@ -113,7 +113,7 @@ int main(int argc, char** argv)
	}

	// save initial conditions to output files
	- if (write_simulation_output(sim, output_folder)) {
	+ if (write_simulation_output(&sim, output_folder)) {
	fprintf(stderr, "\nFatal error: Could not write one or more "
	"output files.\n");
	return EXIT_FAILURE;
	t@@ -142,7 +142,7 @@ int main(int argc, char** argv)
	}

	if (time_since_file >= sim.file_interval) {
	- if (write_simulation_output(sim, output_folder)) {
	+ if (write_simulation_output(&sim, output_folder)) {
	fprintf(stderr, "\nFatal error: Could not write one or more "
	"output files.\n");
	return EXIT_FAILURE;
	diff --git a/slidergrid/simulation.c b/slidergrid/simulation.c
	t@@ -298,14 +298,14 @@ int save_sliders_to_vtk_file(
	return 0;
	}

	-int write_simulation_output(simulation sim, char* output_folder)
	+int write_simulation_output(simulation* sim, char* output_folder)
	{
	char filename[1000];

	// slider parameters
	sprintf(filename, "%s/%s.sliders.%06d.txt",
	- output_folder, sim.id, sim.file_number);
	- if (save_slider_positions_to_file(sim.sliders, sim.N, filename)) {
	+ output_folder, sim->id, sim->file_number);
	+ if (save_slider_positions_to_file(sim->sliders, sim->N, filename)) {
	fprintf(stderr, "\nFatal error: Could not save to output file "
	"'%s'.\n", filename);
	return 1;
	t@@ -313,8 +313,8 @@ int write_simulation_output(simulation sim, char* output_f…

	// other parameters
	sprintf(filename, "%s/%s.general.%06d.txt",
	- output_folder, sim.id, sim.file_number);
	- if (save_general_state_to_file(sim, filename)) {
	+ output_folder, sim->id, sim->file_number);
	+ if (save_general_state_to_file(*sim, filename)) {
	fprintf(stderr, "\nFatal error: Could not save to output file "
	"'%s'.\n", filename);
	return 1;
	t@@ -322,13 +322,13 @@ int write_simulation_output(simulation sim, char* output…

	// sliders to VTK file
	sprintf(filename, "%s/%s.sliders.%06d.vtu",
	- output_folder, sim.id, sim.file_number);
	- if (save_sliders_to_vtk_file(sim.sliders, sim.N, filename)) {
	+ output_folder, sim->id, sim->file_number);
	+ if (save_sliders_to_vtk_file(sim->sliders, sim->N, filename)) {
	fprintf(stderr, "\nFatal error: Could not save to output file "
	"'%s'.\n", filename);
	return 1;
	}

	- sim.file_number++;
	+ sim->file_number++;
	return 0;
	}
	diff --git a/slidergrid/simulation.h b/slidergrid/simulation.h
	t@@ -39,7 +39,8 @@ int save_sliders_to_vtk_file(
	const int N,
	const char* filename);

	-int write_simulation_output(simulation sim, char* output_folder);
	+//int write_simulation_output(simulation sim, char* output_folder);
	+int write_simulation_output(simulation* sim, char* output_folder);

	// user-defined function which sets up the simulation
	simulation setup_simulation();