[2.7] bpo-36106: resolve sinpi name clash with libm (IEEE-754 violati…

[2.7] bpo-36106: resolve sinpi name clash with libm (IEEE-754 violati… · python/cpython@b545ba0

2 files changed

lines changed

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+Resolve potential name clash with libm's sinpi(). Patch by Dmitrii Pasechnik.`

Original file line number	Diff line number	Diff line change
`@@ -71,7 +71,7 @@ static const double pi = 3.141592653589793238462643383279502884197;`
`71`	`71`	`static const double sqrtpi = 1.772453850905516027298167483341145182798;`
`72`	`72`
`73`	`73`	`static double`
`74`		`-sinpi(double x)`
	`74`	`+m_sinpi(double x)`
`75`	`75`	`{`
`76`	`76`	`double y, r;`
`77`	`77`	`int n;`
`@@ -270,7 +270,7 @@ m_tgamma(double x)`
`270`	`270`	`integer. */`
`271`	`271`	`if (absx > 200.0) {`
`272`	`272`	`if (x < 0.0) {`
`273`		`-return 0.0/sinpi(x);`
	`273`	`+return 0.0/m_sinpi(x);`
`274`	`274`	`}`
`275`	`275`	`else {`
`276`	`276`	`errno = ERANGE;`
`@@ -294,7 +294,7 @@ m_tgamma(double x)`
`294`	`294`	`}`
`295`	`295`	`z = z * lanczos_g / y;`
`296`	`296`	`if (x < 0.0) {`
`297`		`-r = -pi / sinpi(absx) / absx * exp(y) / lanczos_sum(absx);`
	`297`	`+r = -pi / m_sinpi(absx) / absx * exp(y) / lanczos_sum(absx);`
`298`	`298`	`r -= z * r;`
`299`	`299`	`if (absx < 140.0) {`
`300`	`300`	`r /= pow(y, absx - 0.5);`
`@@ -366,7 +366,7 @@ m_lgamma(double x)`
`366`	`366`	`(x-0.5)*(log(x+lanczos_g-0.5)-1);`
`367`	`367`	`}`
`368`	`368`	`else {`
`369`		`-r = log(pi) - log(fabs(sinpi(absx))) - log(absx) -`
	`369`	`+r = log(pi) - log(fabs(m_sinpi(absx))) - log(absx) -`
`370`	`370`	`(log(lanczos_sum(absx)) - lanczos_g +`
`371`	`371`	`(absx-0.5)*(log(absx+lanczos_g-0.5)-1));`
`372`	`372`	`}`