Use size_t instead of unsigned ints

examples/cmdline.c

@@ -3,15 +3,15 @@
 #include <assert.h>
 #include <string.h>
 
-static const unsigned int ARGV_COUNT_MAX = 100;
+static const size_t ARGV_COUNT_MAX = 100;
-static const unsigned int ARG_SIZE_MAX = 4096;
+static const size_t ARG_SIZE_MAX = 4096;
 
 static const char *const cmdline = "foo bar\\ baz \"car cdr\"";
 
 int main()
 {
     char error_msg[KERNAUX_CMDLINE_ERROR_MSG_SIZE_MAX];
-    unsigned int argc;
+    size_t argc;
     char *argv[ARGV_COUNT_MAX];
     char buffer[ARGV_COUNT_MAX * ARG_SIZE_MAX];
 

examples/printf.c

@@ -7,7 +7,7 @@
 #define BUFFER_SIZE 1024
 
 static char buffer[BUFFER_SIZE];
-static unsigned int buffer_index = 0;
+static size_t buffer_index = 0;
 
 static void my_putchar(const char chr)
 {

examples/printf_va.c

@@ -7,7 +7,7 @@
 #define BUFFER_SIZE 1024
 
 static char buffer[BUFFER_SIZE];
-static unsigned int buffer_index = 0;
+static size_t buffer_index = 0;
 
 static void my_putchar(const char chr)
 {

include/kernaux/cmdline.h

@@ -6,6 +6,7 @@ extern "C" {
 #endif
 
 #include <stdbool.h>
+#include <stddef.h>
 
 #define KERNAUX_CMDLINE_ERROR_MSG_SIZE_MAX 256
 #define KERNAUX_CMDLINE_ERROR_MSG_SLEN_MAX \
@@ -14,11 +15,11 @@ extern "C" {
 bool kernaux_cmdline_parse(
     const char *cmdline,
     char *error_msg,
-    unsigned int *argc,
+    size_t *argc,
     char **argv,
     char *buffer,
-    unsigned int argv_count_max,
+    size_t argv_count_max,
-    unsigned int arg_size_max
+    size_t arg_size_max
 );
 
 #ifdef __cplusplus

include/kernaux/console.h

@@ -5,12 +5,14 @@
 extern "C" {
 #endif
 
+#include <stddef.h>
+
 void kernaux_console_print(const char *s);
 void kernaux_console_printf(const char *format, ...)
 __attribute__((format(printf, 1, 2)));
 void kernaux_console_putc(char c);
 void kernaux_console_puts(const char *s);
-void kernaux_console_write(const char *data, unsigned int size);
+void kernaux_console_write(const char *data, size_t size);
 
 #ifdef __cplusplus
 }

src/cmdline.c

@@ -5,8 +5,6 @@
 #include <kernaux/cmdline.h>
 #include <kernaux/libc.h>
 
-#include <stddef.h>
-
 enum State {
     INITIAL,
     FINAL,
@@ -20,11 +18,11 @@ enum State {
 bool kernaux_cmdline_parse(
     const char *const cmdline,
     char *error_msg,
-    unsigned int *const argc,
+    size_t *const argc,
     char **argv,
     char *buffer,
-    const unsigned int argv_count_max,
+    const size_t argv_count_max,
-    const unsigned int arg_size_max
+    const size_t arg_size_max
 ) {
     if (
         cmdline == NULL ||
@@ -40,7 +38,7 @@ bool kernaux_cmdline_parse(
     memset(error_msg, '\0', KERNAUX_CMDLINE_ERROR_MSG_SIZE_MAX);
     *argc = 0;
 
-    for (unsigned int index = 0; index < argv_count_max; ++index) {
+    for (size_t index = 0; index < argv_count_max; ++index) {
         argv[index] = NULL;
     }
 
@@ -52,9 +50,9 @@ bool kernaux_cmdline_parse(
 
     enum State state = INITIAL;
 
-    unsigned int buffer_size = 0;
+    size_t buffer_size = 0;
 
-    for (unsigned int index = 0; ; ++index) {
+    for (size_t index = 0; ; ++index) {
         const char cur = cmdline[index];
 
         switch (state) {
@@ -259,7 +257,7 @@ bool kernaux_cmdline_parse(
 fail:
     *argc = 0;
 
-    for (unsigned int index = 0; index < argv_count_max; ++index) {
+    for (size_t index = 0; index < argv_count_max; ++index) {
         argv[index] = NULL;
     }
 

src/console.c

@@ -28,9 +28,9 @@ void kernaux_console_puts(const char *const s)
     kernaux_console_putc('\n');
 }
 
-void kernaux_console_write(const char *const data, const unsigned int size)
+void kernaux_console_write(const char *const data, const size_t size)
 {
-    for (unsigned int i = 0; i < size; i++) {
+    for (size_t i = 0; i < size; i++) {
         kernaux_console_putc(data[i]);
     }
 }

src/multiboot2/is_valid.c

@@ -159,7 +159,7 @@ bool KernAux_Multiboot2_Tag_None_is_valid(
 bool KernAux_Multiboot2_Tag_BootCmdLine_is_valid(
     const struct KernAux_Multiboot2_Tag_BootCmdLine *const tag
 ) {
-    unsigned int index = 1;
+    size_t index = 1;
 
     for (
         const char *ptr = tag->cmdline;
@@ -178,7 +178,7 @@ bool KernAux_Multiboot2_Tag_BootCmdLine_is_valid(
 bool KernAux_Multiboot2_Tag_BootLoaderName_is_valid(
     const struct KernAux_Multiboot2_Tag_BootLoaderName *const tag
 ) {
-    unsigned int index = 1;
+    size_t index = 1;
 
     for (
         const char *ptr = tag->name;
@@ -197,7 +197,7 @@ bool KernAux_Multiboot2_Tag_BootLoaderName_is_valid(
 bool KernAux_Multiboot2_Tag_Module_is_valid(
     const struct KernAux_Multiboot2_Tag_Module *const tag
 ) {
-    unsigned int index = 1;
+    size_t index = 1;
 
     for (
         const char *ptr = tag->cmdline;

src/multiboot2/print.c

@@ -300,11 +300,11 @@ void KernAux_Multiboot2_Tag_MemoryMap_print(
         (struct KernAux_Multiboot2_Tag_MemoryMap_EntryBase*)tag->data;
 
     for (
-        unsigned int index = 0;
+        size_t index = 0;
         index < (tag->base.size - sizeof(*tag)) / tag->entry_size;
         ++index
     ) {
-        printf("    entry %u\n", index);
+        printf("    entry %lu\n", index);
         printf("      base addr: %llu\n", entries[index].base_addr);
         printf("      length: %llu\n",    entries[index].length);
         printf("      type: %u\n",        entries[index].type);

tests/test_cmdline.c

@@ -9,17 +9,17 @@
 #include <stddef.h>
 #include <string.h>
 
-static const unsigned int ARGV_COUNT_MAX = 100;
+static const size_t ARGV_COUNT_MAX = 100;
-static const unsigned int ARG_SIZE_MAX = 4096;
+static const size_t ARG_SIZE_MAX = 4096;
 
 static void test(
     const char *cmdline,
-    unsigned int argv_count_max,
+    size_t argv_count_max,
-    unsigned int arg_size_max,
+    size_t arg_size_max,
 
     bool expected_result,
     const char *expected_error_msg,
-    unsigned int expected_argc,
+    size_t expected_argc,
     const char *const *const expected_argv
 );
 
@@ -236,12 +236,12 @@ int main()
 
 void test(
     const char *const cmdline,
-    unsigned int argv_count_max,
+    size_t argv_count_max,
-    unsigned int arg_size_max,
+    size_t arg_size_max,
 
     const bool expected_result,
     const char *const expected_error_msg,
-    unsigned int expected_argc,
+    size_t expected_argc,
     const char *const *const expected_argv
 ) {
     if (argv_count_max == 0) {
@@ -253,7 +253,7 @@ void test(
     }
 
     char error_msg[KERNAUX_CMDLINE_ERROR_MSG_SIZE_MAX];
-    unsigned int argc = 1234;
+    size_t argc = 1234;
     char *argv[argv_count_max];
     char buffer[argv_count_max * arg_size_max];
 
@@ -272,11 +272,11 @@ void test(
     assert(strcmp(error_msg, expected_error_msg) == 0);
     assert(argc == expected_argc);
 
-    for (unsigned int index = 0; index < argc; ++index) {
+    for (size_t index = 0; index < argc; ++index) {
         assert(strcmp(argv[index], expected_argv[index]) == 0);
     }
 
-    for (unsigned int index = argc; index < argv_count_max; ++index) {
+    for (size_t index = argc; index < argv_count_max; ++index) {
         assert(argv[index] == NULL);
     }
 }

tests/test_printf.c

@@ -12,7 +12,7 @@
 #define BUFFER_SIZE 1024
 
 static char buffer[BUFFER_SIZE];
-static unsigned int buffer_index;
+static size_t buffer_index;
 
 static void test_putchar(const char chr)
 {