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COMMON: Define all Unix98/BSD math constants in scummsys.h.

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This should fix compilation on mingw64 with --enable-c++11 and also make sure
the constants are present on other systems for the uncommon case they might be
missing.
This commit is contained in:
Johannes Schickel 2013-08-02 20:02:02 +02:00
parent ff451ba2dc
commit 4790a4abd5
1 changed files with 47 additions and 3 deletions
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50
common/scummsys.h
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@ -149,12 +149,56 @@
// present i.e. when -std=c++11 is passed to GCC, enabling strict ANSI compliance.
// As we rely on these being present, we define them if they are not set.
#ifndef M_SQRT1_2
#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
#ifndef M_E
#define M_E 2.7182818284590452354 /* e */
#endif
#ifndef M_LOG2E
#define M_LOG2E 1.4426950408889634074 /* log_2 e */
#endif
#ifndef M_LOG10E
#define M_LOG10E 0.43429448190325182765 /* log_10 e */
#endif
#ifndef M_LN2
#define M_LN2 0.69314718055994530942 /* log_e 2 */
#endif
#ifndef M_LN10
#define M_LN10 2.30258509299404568402 /* log_e 10 */
#endif
#ifndef M_PI
#define M_PI 3.14159265358979323846
#define M_PI 3.14159265358979323846 /* pi */
#endif
#ifndef M_PI_2
#define M_PI_2 1.57079632679489661923 /* pi/2 */
#endif
#ifndef M_PI_4
#define M_PI_4 0.78539816339744830962 /* pi/4 */
#endif
#ifndef M_1_PI
#define M_1_PI 0.31830988618379067154 /* 1/pi */
#endif
#ifndef M_2_PI
#define M_2_PI 0.63661977236758134308 /* 2/pi */
#endif
#ifndef M_2_SQRTPI
#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
#endif
#ifndef M_SQRT2
#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
#endif
#ifndef M_SQRT1_2
#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
#endif
// Include our C++11 compatability header for pre-C++11 compilers.