From 3aad5823ca5a99827c7d5b69c04e130b20a0c1d2 Mon Sep 17 00:00:00 2001
From: tayoky <tayoky4848@gmail.com>
Date: Sat, 15 Nov 2025 10:39:14 +0100
Subject: [PATCH] add glm_vecx_swap functions

---
 include/cglm/call/vec2.h |  4 ++++
 include/cglm/call/vec3.h |  4 ++++
 include/cglm/call/vec4.h |  4 ++++
 include/cglm/vec2.h      | 13 +++++++++++++
 include/cglm/vec3.h      | 13 +++++++++++++
 include/cglm/vec4.h      | 13 +++++++++++++
 src/vec2.c               |  6 ++++++
 src/vec3.c               |  6 ++++++
 src/vec4.c               |  6 ++++++
 9 files changed, 69 insertions(+)

diff --git a/include/cglm/call/vec2.h b/include/cglm/call/vec2.h
index 0284a8c..10f64cc 100644
--- a/include/cglm/call/vec2.h
+++ b/include/cglm/call/vec2.h
@@ -245,6 +245,10 @@ CGLM_EXPORT
 bool
 glmc_vec2_refract(vec2 v, vec2 n, float eta, vec2 dest);
 
+CGLM_EXPORT
+void
+glmc_vec2_swap(vec2 a, vec2 b);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/cglm/call/vec3.h b/include/cglm/call/vec3.h
index 640fac7..df2cad2 100644
--- a/include/cglm/call/vec3.h
+++ b/include/cglm/call/vec3.h
@@ -363,6 +363,10 @@ CGLM_EXPORT
 bool
 glmc_vec3_refract(vec3 v, vec3 n, float eta, vec3 dest);
 
+CGLM_EXPORT
+void
+glmc_vec3_swap(vec3 a, vec3 b);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/cglm/call/vec4.h b/include/cglm/call/vec4.h
index 22eee24..dbbfc36 100644
--- a/include/cglm/call/vec4.h
+++ b/include/cglm/call/vec4.h
@@ -336,6 +336,10 @@ CGLM_EXPORT
 bool
 glmc_vec4_refract(vec4 v, vec4 n, float eta, vec4 dest);
 
+CGLM_EXPORT
+void
+glmc_vec4_swap(vec4 a, vec4 b);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/cglm/vec2.h b/include/cglm/vec2.h
index 655fb4b..0f4d749 100644
--- a/include/cglm/vec2.h
+++ b/include/cglm/vec2.h
@@ -59,6 +59,7 @@
    CGLM_INLINE void  glm_vec2_make(float * restrict src, vec2 dest)
    CGLM_INLINE void  glm_vec2_reflect(vec2 v, vec2 n, vec2 dest)
    CGLM_INLINE void  glm_vec2_refract(vec2 v, vec2 n, float eta, vec2 dest)
+   CGLM_INLINE void  glm_vec2_swap(vec2 a, vec2 b)
  */
 
 #ifndef cglm_vec2_h
@@ -795,4 +796,16 @@ glm_vec2_refract(vec2 v, vec2 n, float eta, vec2 dest) {
   return true;
 }
 
+/*!
+ * @brief swap two vectors
+ * @param a the first vector to swap
+ * @param b the second vector to swap
+ */
+CGLM_INLINE void glm_vec2_swap(vec2 a, vec2 b) {
+	vec2 tmp;
+	glm_vec2_copy(a, tmp);
+	glm_vec2_copy(b, a);
+	glm_vec2_copy(tmp, b);
+}
+
 #endif /* cglm_vec2_h */
diff --git a/include/cglm/vec3.h b/include/cglm/vec3.h
index 1350818..5667e3e 100644
--- a/include/cglm/vec3.h
+++ b/include/cglm/vec3.h
@@ -82,6 +82,7 @@
    CGLM_INLINE void  glm_vec3_faceforward(vec3 n, vec3 v, vec3 nref, vec3 dest);
    CGLM_INLINE void  glm_vec3_reflect(vec3 v, vec3 n, vec3 dest);
    CGLM_INLINE void  glm_vec3_refract(vec3 v, vec3 n, float eta, vec3 dest);
+   CGLM_INLINE void  glm_vec3_swap(vec3 a, vec3 b)
 
  Convenient:
    CGLM_INLINE void  glm_cross(vec3 a, vec3 b, vec3 d);
@@ -1261,4 +1262,16 @@ glm_vec3_refract(vec3 v, vec3 n, float eta, vec3 dest) {
   return true;
 }
 
+/*!
+ * @brief swap two vectors
+ * @param a the first vector to swap
+ * @param b the second vector to swap
+ */
+CGLM_INLINE void glm_vec3_swap(vec3 a, vec3 b) {
+	vec3 tmp;
+	glm_vec3_copy(a, tmp);
+	glm_vec3_copy(b, a);
+	glm_vec3_copy(tmp, b);
+}
+
 #endif /* cglm_vec3_h */
diff --git a/include/cglm/vec4.h b/include/cglm/vec4.h
index ded09c9..f12fa04 100644
--- a/include/cglm/vec4.h
+++ b/include/cglm/vec4.h
@@ -66,6 +66,7 @@
    CGLM_INLINE void  glm_vec4_make(float * restrict src, vec4 dest);
    CGLM_INLINE void  glm_vec4_reflect(vec4 v, vec4 n, vec4 dest);
    CGLM_INLINE void  glm_vec4_refract(vec4 v, vec4 n, float eta, vec4 dest);
+   CGLM_INLINE void  glm_vec4_swap(vec4 a, vec4 b)
 
  DEPRECATED:
    glm_vec4_dup
@@ -1345,4 +1346,16 @@ glm_vec4_refract(vec4 v, vec4 n, float eta, vec4 dest) {
   return true;
 }
 
+/*!
+ * @brief swap two vectors
+ * @param a the first vector to swap
+ * @param b the second vector to swap
+ */
+CGLM_INLINE void glm_vec4_swap(vec4 a, vec4 b) {
+	vec4 tmp;
+	glm_vec4_copy(a, tmp);
+	glm_vec4_copy(b, a);
+	glm_vec4_copy(tmp, b);
+}
+
 #endif /* cglm_vec4_h */
diff --git a/src/vec2.c b/src/vec2.c
index 479c41e..9ff3264 100644
--- a/src/vec2.c
+++ b/src/vec2.c
@@ -356,3 +356,9 @@ bool
 glmc_vec2_refract(vec2 v, vec2 n, float eta, vec2 dest) {
   return glm_vec2_refract(v, n, eta, dest);
 }
+
+CGLM_EXPORT
+void
+glmc_vec2_swap(vec2 a, vec2 b) {
+	glm_vec2_swap(a, b);
+}
diff --git a/src/vec3.c b/src/vec3.c
index a8c1083..65ed254 100644
--- a/src/vec3.c
+++ b/src/vec3.c
@@ -501,3 +501,9 @@ bool
 glmc_vec3_refract(vec3 v, vec3 n, float eta, vec3 dest) {
   return glm_vec3_refract(v, n, eta, dest);
 }
+
+CGLM_EXPORT
+void
+glmc_vec3_swap(vec3 a, vec3 b) {
+	glm_vec3_swap(a, b);
+}
diff --git a/src/vec4.c b/src/vec4.c
index 4b08abf..cc8d15b 100644
--- a/src/vec4.c
+++ b/src/vec4.c
@@ -459,3 +459,9 @@ bool
 glmc_vec4_refract(vec4 v, vec4 n, float eta, vec4 dest) {
   return glm_vec4_refract(v, n, eta, dest);
 }
+
+CGLM_EXPORT
+void
+glmc_vec4_swap(vec4 a, vec4 b) {
+	glm_vec4_swap(a, b);
+}