Remove while loop and readd c-style for loops i.e. all loops are just `for`

6 files changed, 15 insertions, 18 deletions

diff --git a/core/atomic.odin b/core/atomic.odin
index cc381300e..3be3c1d40 100644
--- a/core/atomic.odin
+++ b/core/atomic.odin
@@ -36,7 +36,7 @@ fetch_or :: proc(a: ^i32, operand: i32) -> i32 {
 spin_lock :: proc(a: ^i32, time_out: int) -> bool { // NOTE(bill) time_out = -1 as default
 	old_value := compare_exchange(a, 1, 0);
 	counter := 0;
-	while old_value != 0 && (time_out < 0 || counter < time_out) {
+	for old_value != 0 && (time_out < 0 || counter < time_out) {
 		counter += 1;
 		yield_thread();
 		old_value = compare_exchange(a, 1, 0);
@@ -80,7 +80,7 @@ fetch_or :: proc(a: ^i64, operand: i64) -> i64 {
 spin_lock :: proc(a: ^i64, time_out: int) -> bool { // NOTE(bill) time_out = -1 as default
 	old_value := compare_exchange(a, 1, 0);
 	counter := 0;
-	while old_value != 0 && (time_out < 0 || counter < time_out) {
+	for old_value != 0 && (time_out < 0 || counter < time_out) {
 		counter += 1;
 		yield_thread();
 		old_value = compare_exchange(a, 1, 0);
diff --git a/core/fmt.odin b/core/fmt.odin
index f7c11015e..bd11d05e0 100644
--- a/core/fmt.odin
+++ b/core/fmt.odin
@@ -460,7 +460,7 @@ fmt_integer :: proc(fi: ^Fmt_Info, u: u64, base: int, signed: bool, digits: stri
 		panic("fmt_integer: unknown base, whoops");
 	}
 
-	while b := cast(u64)base; u >= b {
+	for b := cast(u64)base; u >= b;  {
 		i -= 1;
 		next := u / b;
 		buf[i] = digits[u%b];
@@ -468,7 +468,7 @@ fmt_integer :: proc(fi: ^Fmt_Info, u: u64, base: int, signed: bool, digits: stri
 	}
 	i -= 1;
 	buf[i] = digits[u];
-	while i > 0 && prec > buf.count-i {
+	for i > 0 && prec > buf.count-i {
 		i -= 1;
 		buf[i] = '0';
 	}
@@ -598,7 +598,7 @@ fmt_float :: proc(fi: ^Fmt_Info, v: f64, bit_size: int, verb: rune) {
 			case fi.space: fill = ' ';
 			}
 
-			while width > 0 {
+			for width > 0 {
 				width -= 1;
 				buffer_write_byte(fi.buf, fill);
 			}
@@ -885,11 +885,11 @@ bprintf :: proc(b: ^Buffer, fmt: string, args: ..any) -> int {
 	end := fmt.count;
 	arg_index := 0;
 	was_prev_index := false;
-	while i := 0; i < end {
+	for i := 0; i < end;  {
 		fi = Fmt_Info{buf = b, good_arg_index = true};
 
 		prev_i := i;
-		while i < end && fmt[i] != '%' {
+		for i < end && fmt[i] != '%' {
 			i += 1;
 		}
 		if i > prev_i {
@@ -903,7 +903,7 @@ bprintf :: proc(b: ^Buffer, fmt: string, args: ..any) -> int {
 		i += 1;
 
 
-		while i < end {
+		for ; i < end; i += 1 {
 			skip_loop := false;
 			c := fmt[i];
 			match c {
@@ -925,7 +925,6 @@ bprintf :: proc(b: ^Buffer, fmt: string, args: ..any) -> int {
 			if skip_loop {
 				break;
 			}
-			i += 1;
 		}
 
 		arg_index, i, was_prev_index = arg_number(^fi, arg_index, fmt, i, args.count);
diff --git a/core/hash.odin b/core/hash.odin
index 7348bef53..b2d6f0226 100644
--- a/core/hash.odin
+++ b/core/hash.odin
@@ -108,7 +108,7 @@ murmur64 :: proc(data_: rawptr, len: int) -> u64 {
 		data := slice_ptr(cast(^u32)data_, len/size_of(u32));
 
 		i := 0;
-		while len >= 8 {
+		for len >= 8 {
 			k1, k2: u32;
 			k1 = data[i]; i += 1;
 			k1 *= m;
diff --git a/core/mem.odin b/core/mem.odin
index 1ad80137d..5f1bf378b 100644
--- a/core/mem.odin
+++ b/core/mem.odin
@@ -75,14 +75,13 @@ allocation_header_fill :: proc(header: ^Allocation_Header, data: rawptr, size: i
 	header.size = size;
 	ptr := cast(^int)(header+1);
 
-	while i := 0; cast(rawptr)ptr < data {
+	for i := 0; cast(rawptr)ptr < data; i += 1 {
 		(ptr+i)^ = -1;
-		i += 1;
 	}
 }
 allocation_header :: proc(data: rawptr) -> ^Allocation_Header {
 	p := cast(^int)data;
-	while (p-1)^ == -1 {
+	for (p-1)^ == -1 {
 		p = (p-1);
 	}
 	return cast(^Allocation_Header)p-1;
diff --git a/core/os_windows.odin b/core/os_windows.odin
index acfb02116..4127d6242 100644
--- a/core/os_windows.odin
+++ b/core/os_windows.odin
@@ -223,7 +223,7 @@ read_entire_file :: proc(name: string) -> ([]byte, bool) {
 	single_read_length: i32;
 	total_read: i64;
 
-	while total_read < length {
+	for total_read < length {
 		remaining := length - total_read;
 		to_read: u32;
 		MAX :: 1<<32-1;
diff --git a/core/utf8.odin b/core/utf8.odin
index 7730f94be..8720e1f20 100644
--- a/core/utf8.odin
+++ b/core/utf8.odin
@@ -143,8 +143,7 @@ valid_rune :: proc(r: rune) -> bool {
 
 valid_string :: proc(s: string) -> bool {
 	n := s.count;
-	i := 0;
-	while i < n {
+	for i := 0; i < n; {
 		si := s[i];
 		if si < RUNE_SELF { // ascii
 			i += 1;
@@ -178,8 +177,8 @@ valid_string :: proc(s: string) -> bool {
 rune_count :: proc(s: string) -> int {
 	count := 0;
 	n := s.count;
-	i := 0;
-	while i < n {
+
+	for i := 0; i < n; {
 		defer count += 1;
 		si := s[i];
 		if si < RUNE_SELF { // ascii