diff --git a/core/fmt/fmt.odin b/core/fmt/fmt.odin
index 018c66bd3..867257491 100644
--- a/core/fmt/fmt.odin
+++ b/core/fmt/fmt.odin
@@ -120,11 +120,11 @@ register_user_formatter :: proc(id: typeid, formatter: User_Formatter) -> Regist
 //
 // 	Returns: A formatted string. 
 //
+@(require_results)
 aprint :: proc(args: ..any, sep := " ", allocator := context.allocator) -> string {
 	str: strings.Builder
 	strings.builder_init(&str, allocator)
-	sbprint(&str, ..args, sep=sep)
-	return strings.to_string(str)
+	return sbprint(&str, ..args, sep=sep)
 }
 // 	Creates a formatted string with a newline character at the end
 //
@@ -136,11 +136,11 @@ aprint :: proc(args: ..any, sep := " ", allocator := context.allocator) -> strin
 //
 // 	Returns: A formatted string with a newline character at the end.
 //
+@(require_results)
 aprintln :: proc(args: ..any, sep := " ", allocator := context.allocator) -> string {
 	str: strings.Builder
 	strings.builder_init(&str, allocator)
-	sbprintln(&str, ..args, sep=sep)
-	return strings.to_string(str)
+	return sbprintln(&str, ..args, sep=sep)
 }
 // 	Creates a formatted string using a format string and arguments
 //
@@ -153,11 +153,11 @@ aprintln :: proc(args: ..any, sep := " ", allocator := context.allocator) -> str
 //
 // 	Returns: A formatted string. The returned string must be freed accordingly.
 //
+@(require_results)
 aprintf :: proc(fmt: string, args: ..any, allocator := context.allocator, newline := false) -> string {
 	str: strings.Builder
 	strings.builder_init(&str, allocator)
-	sbprintf(&str, fmt, ..args, newline=newline)
-	return strings.to_string(str)
+	return sbprintf(&str, fmt, ..args, newline=newline)
 }
 // 	Creates a formatted string using a format string and arguments, followed by a newline.
 //
@@ -169,6 +169,7 @@ aprintf :: proc(fmt: string, args: ..any, allocator := context.allocator, newlin
 //
 // 	Returns: A formatted string. The returned string must be freed accordingly.
 //
+@(require_results)
 aprintfln :: proc(fmt: string, args: ..any, allocator := context.allocator) -> string {
 	return aprintf(fmt, ..args, allocator=allocator, newline=true)
 }
@@ -182,11 +183,11 @@ aprintfln :: proc(fmt: string, args: ..any, allocator := context.allocator) -> s
 //
 // 	Returns: A formatted string.
 //
+@(require_results)
 tprint :: proc(args: ..any, sep := " ") -> string {
 	str: strings.Builder
 	strings.builder_init(&str, context.temp_allocator)
-	sbprint(&str, ..args, sep=sep)
-	return strings.to_string(str)
+	return sbprint(&str, ..args, sep=sep)
 }
 // 	Creates a formatted string with a newline character at the end
 //
@@ -198,11 +199,11 @@ tprint :: proc(args: ..any, sep := " ") -> string {
 //
 // 	Returns: A formatted string with a newline character at the end.
 //
+@(require_results)
 tprintln :: proc(args: ..any, sep := " ") -> string {
 	str: strings.Builder
 	strings.builder_init(&str, context.temp_allocator)
-	sbprintln(&str, ..args, sep=sep)
-	return strings.to_string(str)
+	return sbprintln(&str, ..args, sep=sep)
 }
 // 	Creates a formatted string using a format string and arguments
 //
@@ -215,11 +216,11 @@ tprintln :: proc(args: ..any, sep := " ") -> string {
 //
 // 	Returns: A formatted string.
 //
+@(require_results)
 tprintf :: proc(fmt: string, args: ..any, newline := false) -> string {
 	str: strings.Builder
 	strings.builder_init(&str, context.temp_allocator)
-	sbprintf(&str, fmt, ..args, newline=newline)
-	return strings.to_string(str)
+	return sbprintf(&str, fmt, ..args, newline=newline)
 }
 // 	Creates a formatted string using a format string and arguments, followed by a newline.
 //
@@ -231,6 +232,7 @@ tprintf :: proc(fmt: string, args: ..any, newline := false) -> string {
 //
 // 	Returns: A formatted string.
 //
+@(require_results)
 tprintfln :: proc(fmt: string, args: ..any) -> string {
 	return tprintf(fmt, ..args, newline=true)
 }
@@ -339,6 +341,7 @@ panicf :: proc(fmt: string, args: ..any, loc := #caller_location) -> ! {
 //
 // Returns: A formatted C string
 //
+@(require_results)
 caprintf :: proc(format: string, args: ..any, newline := false) -> cstring {
 	str: strings.Builder
 	strings.builder_init(&str)
@@ -357,6 +360,7 @@ caprintf :: proc(format: string, args: ..any, newline := false) -> cstring {
 //
 // Returns: A formatted C string
 //
+@(require_results)
 caprintfln :: proc(format: string, args: ..any) -> cstring {
 	return caprintf(format, ..args, newline=true)
 }
@@ -371,6 +375,7 @@ caprintfln :: proc(format: string, args: ..any) -> cstring {
 //
 // Returns: A formatted C string
 //
+@(require_results)
 ctprintf :: proc(format: string, args: ..any, newline := false) -> cstring {
 	str: strings.Builder
 	strings.builder_init(&str, context.temp_allocator)
@@ -389,6 +394,7 @@ ctprintf :: proc(format: string, args: ..any, newline := false) -> cstring {
 //
 // Returns: A formatted C string
 //
+@(require_results)
 ctprintfln :: proc(format: string, args: ..any) -> cstring {
 	return ctprintf(format, ..args, newline=true)
 }
diff --git a/examples/demo/demo.odin b/examples/demo/demo.odin
index 1f6d337e8..a62c11310 100644
--- a/examples/demo/demo.odin
+++ b/examples/demo/demo.odin
@@ -2385,7 +2385,7 @@ matrix_type :: proc() {
 
 		c := a * b
 		#assert(type_of(c) == matrix[2, 2]f32)
-		fmt.tprintln("c = a * b", c)
+		fmt.println("c = a * b", c)
 	}
 
 	{ // Matrices support multiplication between matrices and arrays