README tweaks, free seed in examples

README.md

@@ -1,6 +1,6 @@
 # Squiggle.c
 
-A self-contained C99 library that provides a subset of [Squiggle](https://www.squiggle-language.com/)'s functionality in C.
+A self-contained C99 library that provides a subset of [Squiggle](https://www.squiggle-language.com/)'s functionality in C. It should be fast, but at the margin, simplicity of implementation wins over speed.
 
 ## Why C?
 
@@ -79,6 +79,8 @@ Behaviour on error can be toggled by the `EXIT_ON_ERROR` variable. This library
 
 ## To do list
 
+- [ ] Explain correlated samples
+- [ ] Add tests in Stan?
 - [ ] Have some more complicated & realistic example
 - [ ] Add summarization functions: 90% ci (or all c.i.?) 
 - [ ] Systematize references

examples/01_one_sample/example.c

@@ -39,6 +39,7 @@ int main(){
 
     float result_one = sample_mixture(samplers, weights, n_dists, seed);
 		printf("result_one: %f\n", result_one);
+		free(seed);
 }
 
 /* 

examples/02_many_samples/example.c

@@ -48,6 +48,7 @@ int main(){
 		  printf("%.2f, ", result_many[i]);
 		}
 		printf("]\n");
+		free(seed);
 }
 
 /* 

examples/03_gcc_nested_function/example.c

@@ -33,5 +33,6 @@ int main(){
 		  printf("%.2f, ", result_many[i]);
 		}
 		printf("]\n");
+		free(seed);
 }
 

squiggle.h

@@ -17,6 +17,9 @@ float sample_normal(float mean, float sigma, uint32_t* seed);
 float sample_lognormal(float logmean, float logsigma, uint32_t* seed);
 float sample_to(float low, float high, uint32_t* seed);
 
+float sample_gamma(float alpha, uint32_t* seed);
+float sample_beta(float a, float b, uint32_t* seed);
+
 // Array helpers
 float array_sum(float* array, int length);
 void array_cumsum(float* array_to_sum, float* array_cumsummed, int length);