Use HUGE_VALF instead of HUGE_VAL in single-precision float libm math functions

This patch replaces instances of "(float).*HUGE_VAL" with a direct usage of
HUGE_VALF, which is also defined in math.h.

newlib/libm/math/wf_cosh.c

@@ -36,7 +36,7 @@
 	if(fabsf(x)>8.9415985107e+01f) {
 	    /* coshf(finite) overflow */
 	    errno = ERANGE;
-	    return (float)HUGE_VAL;
+	    return HUGE_VALF;
 	} else
 	    return z;
 #endif

newlib/libm/math/wf_exp.c

@@ -46,7 +46,7 @@ u_threshold= -1.0397208405e+02;  /* 0xc2cff1b5 */
 	    if(x>o_threshold) {
 		/* expf(finite) overflow */
 		errno = ERANGE;
-	        return HUGE_VAL;
+	        return HUGE_VALF;
 	    } else if(x<u_threshold) {
 		/* expf(finite) underflow */
 		errno = ERANGE;

newlib/libm/math/wf_gamma.c

@@ -39,7 +39,7 @@
 		/* gammaf(finite) overflow */
 		errno = ERANGE;
             }
-	    return (float)HUGE_VAL;
+	    return HUGE_VALF;
         } else
             return y;
 #endif

newlib/libm/math/wf_hypot.c

@@ -36,7 +36,7 @@
 	if((!finitef(z))&&finitef(x)&&finitef(y)) {
 	    /* hypotf(finite,finite) overflow */
 	    errno = ERANGE;
-	    return (float)HUGE_VAL;
+	    return HUGE_VALF;
 	} else
 	    return z;
 #endif

newlib/libm/math/wf_j0.c

@@ -57,7 +57,7 @@
         if(x <= (float)0.0){
 	    /* y0f(0) = -inf  or y0f(x<0) = NaN */
 	    errno = EDOM;
-	    return (float)-HUGE_VAL;
+	    return -HUGE_VALF;
         }
 	if(x>(float)X_TLOSS) {
 	    /* y0f(x>X_TLOSS) */

newlib/libm/math/wf_j1.c

@@ -59,7 +59,7 @@
         if(x <= 0.0f){
 	    /* y1f(0) = -inf or y1f(x<0) = NaN */
 	    errno = EDOM;
-	    return (float)-HUGE_VAL;
+	    return -HUGE_VALF;
         }
 	if(x>(float)X_TLOSS) {
 	    /* y1f(x>X_TLOSS) */

newlib/libm/math/wf_jn.c

@@ -55,7 +55,7 @@
         if(x <= 0.0f){
 	    /* ynf(n,0) = -inf or ynf(x<0) = NaN */
 	    errno = EDOM;
-	    return (float)-HUGE_VAL;
+	    return -HUGE_VALF;
         }
 	if(x>(float)X_TLOSS) {
 	    /* ynf(x>X_TLOSS) */

newlib/libm/math/wf_lgamma.c

@@ -39,7 +39,7 @@
 		/* lgammaf(finite) overflow */
 		errno = ERANGE;
 	    }
-            return (float)HUGE_VAL;
+            return HUGE_VALF;
         } else
             return y;
 #endif

newlib/libm/math/wf_log.c

@@ -37,7 +37,7 @@
 	if(x==0.0f) {
 	    /* logf(0) */
 	    errno = ERANGE;
-	    return (float)-HUGE_VAL;
+	    return -HUGE_VALF;
 	} else { 
 	    /* logf(x<0) */
 	    errno = EDOM;

newlib/libm/math/wf_log10.c

@@ -37,7 +37,7 @@
 	    if(x==0.0f) {
 		/* log10f(0) */
 		errno = ERANGE;
-		return (float)-HUGE_VAL;
+		return -HUGE_VALF;
 	    } else { 
 		/* log10f(x<0) */
 		errno = EDOM;

newlib/libm/math/wf_pow.c

@@ -51,7 +51,7 @@
 	    if(finitef(y)&&y<0.0f) {
 		/* 0**neg */
 		errno = EDOM;
-		return (float)-HUGE_VAL;
+		return -HUGE_VALF;
 	    }
 	    return z;
 	}
@@ -67,8 +67,8 @@
 		    /* powf(x,y) overflow */
 		    errno = ERANGE;
 		    if(x<0.0f&&rintf(y)!=y)
-		      return (float)-HUGE_VAL;
-		    return (float)HUGE_VAL;
+		      return -HUGE_VALF;
+		    return HUGE_VALF;
 		}
 	    }
 	} 

newlib/libm/math/wf_scalb.c

@@ -46,7 +46,7 @@
 	if(!(finitef(z)||isnan(z))&&finitef(x)) {
 	    /* scalbf overflow; */
 	    errno = ERANGE;
-	    return (x > 0.0 ? HUGE_VAL : -HUGE_VAL);
+	    return (x > 0.0 ? HUGE_VALF : -HUGE_VALF);
 	}
 	if(z==0.0f&&z!=x) {
 	    /* scalbf underflow */

newlib/libm/math/wf_sinh.c

@@ -36,7 +36,7 @@
 	if(!finitef(z)&&finitef(x)) {
 	    /* sinhf(finite) overflow */
 	    errno = ERANGE;
-	    return ( (x>0.0f) ? HUGE_VAL : -HUGE_VAL);
+	    return ( (x>0.0f) ? HUGE_VALF : -HUGE_VALF);
 	} else
 	    return z;
 #endif

newlib/libm/math/wr_gamma.c

@@ -40,7 +40,7 @@
 	    else
 	      /* gamma(finite) overflow */
 	      errno = ERANGE;
-	    return HUGE_VAL;
+	    return HUGE_VALF;
         } else
             return y;
 #endif

newlib/libm/math/wrf_gamma.c

@@ -41,7 +41,7 @@
 		/* gammaf(finite) overflow */
 		errno = ERANGE;
 	    }
-	    return (float)HUGE_VAL;
+	    return HUGE_VALF;
         } else
             return y;
 #endif

newlib/libm/math/wrf_lgamma.c

@@ -41,7 +41,7 @@
 		/* lgammaf(finite) overflow */
 		errno = ERANGE;
 	    }
-	    return (float)HUGE_VAL;
+	    return HUGE_VALF;
         } else
             return y;
 #endif