Fix examples based on older versions, add build examples script

.gitignore

@@ -0,0 +1,3 @@
+a.out
+examples/*
+!examples/*.c

buildExamples.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+for f in examples/*.c; do
+  cc -O2 -Wall -Wextra -std=c99 "$f" -o "${f%.c}"
+done

examples/da_float.c

@@ -1,16 +1,17 @@
 #include <stdio.h>
+#include <stddef.h>
 #define LAZY_IMPL
-#include "lazy.h"
+#include "../lazy.h"
 
 int main() {
   Lz_DA(float) nums = {0};
   lz_da_reserve(nums, 64);
-  for (int i = 0; i < 32; ++i) {
+  for (size_t i = 0; i < 32; ++i) {
     lz_da_append(nums, 2.0*i);
   }
 
-  for (int i = 0; i < nums.cnt; ++i) {
+  for (size_t i = 0; i < nums.cnt; ++i) {
-    printf("%f\n", nums.elts[i]);
+    printf("%f\n", nums.data[i]);
   }
   
   return 0;

examples/da_ins.c

@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <stddef.h>
 #define LAZY_IMPL
 #include "../lazy.h"
 
@@ -9,14 +10,14 @@ int main() {
   lz_da_append(xs, 4);
   lz_da_shrink_to_fit(xs);
 
-  for (int i = 0; i < xs.cnt; ++i) {
+  for (size_t i = 0; i < xs.cnt; ++i) {
-    printf("%d: %d\n", i, xs.elts[i]);
+    printf("%zu: %d\n", i, xs.data[i]);
   }
 
   printf("\n");
   lz_da_insert(xs,1,2);
   
-  for (int i = 0; i < xs.cnt; ++i) {
+  for (size_t i = 0; i < xs.cnt; ++i) {
-    printf("%d: %d\n", i, xs.elts[i]);
+    printf("%zu: %d\n", i, xs.data[i]);
   }
 }

examples/string_split.c

@@ -1,5 +1,5 @@
 #define LAZY_IMPL
-#include "lazy.h"
+#include "../lazy.h"
 #include <string.h>
 #include <stdio.h>
 #include <ctype.h>
@@ -7,16 +7,16 @@
 int isnotalpha(int x) { return !isalpha(x); }
 
 int main() {
-  char *src =  strdup("This is a list of words, which apparently has been referred to previously as a sentence")
+  char *src =  lz_cstr_dup("This is a list of words, which apparently has been referred to previously as a sentence");
   Lz_Slc s = lz_cstr_to_slc(src);
 
   Lz_Slc word;
   int i = 0;
   do {
     lz_split_slc_typ(&s, isnotalpha, &word);
-    printf("Word %d: "LZ_SLC_FMT"\n", i, LZ_SLC_PRINTF(word));
+    printf("Word %d: "LZ_STR_FMT"\n", i, LZ_STR_PRINTF(word));
     ++i;
-  } while(s.len != 0);
+  } while(s.cnt != 0);
 
   free(src);
 

examples/string_trim.c

@@ -1,15 +1,16 @@
 #include <stdio.h>
 #include <ctype.h>
+#include <string.h>
 #define LAZY_IMPL
-#include "lazy.h"
+#include "../lazy.h"
 
 int main() {
-  char *src = strdup(" \t   This text has some extra whitespace  \t ");
+  char *src = lz_cstr_dup(" \t   This text has some extra whitespace  \t ");
   Lz_Slc s = lz_cstr_to_slc(src);
 
-  printf("|"LZ_SLC_FMT"|\n", LZ_SLC_PRINTF(s));
+  printf("|"LZ_STR_FMT"|\n", LZ_STR_PRINTF(s));
   lz_trim_typ(&s, isspace);
-  printf("|"LZ_SLC_FMT"|\n", LZ_SLC_PRINTF(s));
+  printf("|"LZ_STR_FMT"|\n", LZ_STR_PRINTF(s));
 
   free(src); // excessive but this is how you should do it
 

lazy.h

@@ -19,6 +19,7 @@ void lz_drop_right(Lz_Slc *src, size_t n);
 void lz_split_slc(Lz_Slc *src, char delim, Lz_Slc *dst);
 void lz_split_slc_typ(Lz_Slc *src, int (*classfunc)(int), Lz_Slc *dst);
 Lz_Slc lz_cstr_to_slc(char *dat);
+char *lz_cstr_dup(const char *s);
 
 #define Lz_DA(T) struct {T *data; size_t cnt; size_t cap; }
 #define lz_da_append(da, x) do { \
@@ -85,6 +86,17 @@ Lz_Slc lz_cstr_to_slc(char *dat);
 typedef Lz_DA(char) Lz_SB;
 
 #ifdef LAZY_IMPL
+
+// Horribly enough, strdup is a gnu extension
+// Here's a portable implementation
+char *lz_cstr_dup(const char *s) {
+  if (!s) return NULL;
+  size_t n = strlen(s);
+  char *p = malloc((n+1)*sizeof(char));
+  if (!p) return NULL;
+  memcpy(p, s, n+1);
+  return p;
+}
 void lz_drop_left(Lz_Slc *src, size_t n) {
   if (src->cnt < n) n = src->cnt;
   src->data += n;