backward compatibility with c99

5 files changed, 32 insertions, 0 deletions

diff --git a/headers/TZR.h b/headers/TZR.h
index 0bf0e01..47d81f9 100644
--- a/headers/TZR.h
+++ b/headers/TZR.h
@@ -25,7 +25,9 @@
 /* Should be called only once before usage of any other function unless
  * otherwise specified. On error this calls TZR_Quit and returns -1.
  * `config` will be duplicated internally and can be safely discarded. */
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
+#endif
 int _TZR_Init(const TZR_Config *config);
 
 /* Destroy and free everything created by TZR. */
diff --git a/headers/TZR_light.h b/headers/TZR_light.h
index d4d26de..6d55944 100644
--- a/headers/TZR_light.h
+++ b/headers/TZR_light.h
@@ -1,7 +1,11 @@
 #pragma once
 
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
+#endif
 int TZR_LightBegin(void);
 
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
+#endif
 int TZR_LightEnd(void);
diff --git a/headers/TZR_render.h b/headers/TZR_render.h
index 48fd40d..ebc6fa8 100644
--- a/headers/TZR_render.h
+++ b/headers/TZR_render.h
@@ -5,38 +5,50 @@
 
 /* All draw calls should happen between TZR_DrawBegin and TZR_DrawEnd.
  * Return -1 on error. */
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
+#endif
 int TZR_DrawBegin(void);
 
 /* Return -1 on error. */
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
+#endif
 int TZR_DrawEnd(void);
 
 /* Return -1 on error. */
 #define TZR_DrawSetColor(...) _TZR_DrawSetColor(&(const TZR_Color){ \
 	.r=-1.0f, .g=-1.0f, .b=-1.0f, .a=-1.0f, ._=0, __VA_ARGS__ })
 #ifdef TZR_PARANOID
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
 #endif
+#endif
 int _TZR_DrawSetColor(const TZR_Color *color);
 
 /* Return -1 on error. */
 #ifdef TZR_PARANOID
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
 #endif
+#endif
 int TZR_DrawClear(void);
 
 /* Return -1 on error. Draw point on `x`;`y` in the framebuffer. */
 #ifdef TZR_PARANOID
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
 #endif
+#endif
 int TZR_DrawPoint(int x, int y);
 
 /* Return -1 on error. Draw line between `x0`;`y0` and `x1`;`y1` in the
  * framebuffer. */
 #ifdef TZR_PARANOID
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
 #endif
+#endif
 int TZR_DrawLine(int x0, int y0, int x1, int y1);
 
 /* Return -1 on error. Draw rectangle at `x`;`y` position of size `w`x`h` in the
@@ -45,8 +57,10 @@ int TZR_DrawLine(int x0, int y0, int x1, int y1);
 	&(const TZR_DrawRectangleArgs){ \
 	.x=0, .y=0, .w=0, .h=0, .fill=false, .center=false, ._=0, __VA_ARGS__ })
 #ifdef TZR_PARANOID
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
 #endif
+#endif
 int _TZR_DrawRectangle(const TZR_DrawRectangleArgs *args);
 
 /* Return -1 on error. Draw texture ressource `id` at `x`;`y` position of
@@ -56,8 +70,10 @@ int _TZR_DrawRectangle(const TZR_DrawRectangleArgs *args);
 	.sy=1.0f, .center=false, .flip_x=false, .flip_y=false, ._=0, \
 	__VA_ARGS__ })
 #ifdef TZR_PARANOID
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
 #endif
+#endif
 int _TZR_DrawImage(const TZR_DrawImageArgs *args);
 
 void TZR_ScreenTransform(int *x, int *y);
diff --git a/headers/TZR_resource.h b/headers/TZR_resource.h
index 87373f0..1d2a590 100644
--- a/headers/TZR_resource.h
+++ b/headers/TZR_resource.h
@@ -4,13 +4,19 @@
 #define TZR_RES TZR_LoadResource
 
 /* Return 0 on error. */
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
+#endif
 TZR_Uint TZR_LoadResourceFromMemory(TZR_ResourceType type, const void *data, int size);
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
+#endif
 TZR_Uint TZR_LoadResourceTyped(TZR_ResourceType type, const char *path);
 
 /* Return 0 on error; try to autodetect resource type from file extension. */
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
+#endif
 TZR_Uint TZR_LoadResource(const char *path);
 
 /* Doesn't handle invalid ID. Pointer might get invalidated by resource
@@ -40,6 +46,8 @@ int TZR_ReloadResource(TZR_Uint id);
 void TZR_ResourcesWatch(void);
 
 /* Used internaly. */
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
+#endif
 int TZR_DirectResourceLoad(TZR_Resource *res, const void *data, int size);
 void TZR_DestroyResource(TZR_Resource *res, int free_path);
diff --git a/headers/TZR_sound.h b/headers/TZR_sound.h
index 612dfaa..b24823e 100644
--- a/headers/TZR_sound.h
+++ b/headers/TZR_sound.h
@@ -4,6 +4,8 @@
 #define TZR_PlaySound(...) _TZR_PlaySound(&(const TZR_PlaySoundArgs){ \
 	.id=0, .loop=0, .volume=1.0f, ._=0, __VA_ARGS__ })
 #ifdef TZR_PARANOID
+#if __STDC_VERSION__ > 201710L
 [[nodiscard]]
 #endif
+#endif
 int _TZR_PlaySound(const TZR_PlaySoundArgs *args);