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blender-archive/source/blender/blenlib/intern/math_base_safe_inline.c
Campbell Barton c434782e3a File headers: SPDX License migration
Use a shorter/simpler license convention, stops the header taking so
much space.

Follow the SPDX license specification: https://spdx.org/licenses

- C/C++/objc/objc++
- Python
- Shell Scripts
- CMake, GNUmakefile

While most of the source tree has been included

- `./extern/` was left out.
- `./intern/cycles` & `./intern/atomic` are also excluded because they
  use different header conventions.

doc/license/SPDX-license-identifiers.txt has been added to list SPDX all
used identifiers.

See P2788 for the script that automated these edits.

Reviewed By: brecht, mont29, sergey

Ref D14069
2022-02-11 09:14:36 +11:00

66 lines
1.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef __MATH_BASE_SAFE_INLINE_C__
#define __MATH_BASE_SAFE_INLINE_C__
#include "BLI_math_base_safe.h"
#include "BLI_utildefines.h"
#ifdef __cplusplus
extern "C" {
#endif
MINLINE float safe_divide(float a, float b)
{
return (b != 0.0f) ? a / b : 0.0f;
}
MINLINE float safe_modf(float a, float b)
{
return (b != 0.0f) ? fmodf(a, b) : 0.0f;
}
MINLINE float safe_logf(float a, float base)
{
if (UNLIKELY(a <= 0.0f || base <= 0.0f)) {
return 0.0f;
}
return safe_divide(logf(a), logf(base));
}
MINLINE float safe_sqrtf(float a)
{
return sqrtf(MAX2(a, 0.0f));
}
MINLINE float safe_inverse_sqrtf(float a)
{
return (a > 0.0f) ? 1.0f / sqrtf(a) : 0.0f;
}
MINLINE float safe_asinf(float a)
{
CLAMP(a, -1.0f, 1.0f);
return asinf(a);
}
MINLINE float safe_acosf(float a)
{
CLAMP(a, -1.0f, 1.0f);
return acosf(a);
}
MINLINE float safe_powf(float base, float exponent)
{
if (UNLIKELY(base < 0.0f && exponent != (int)exponent)) {
return 0.0f;
}
return powf(base, exponent);
}
#ifdef __cplusplus
}
#endif
#endif /* __MATH_BASE_SAFE_INLINE_C__ */