strtod test numbers near overflow

[libc-test] / src / stdlib / strtod.c

diff --git a/src/stdlib/strtod.c b/src/stdlib/strtod.c
index ff85c6a..013c837 100644 (file)
--- a/src/stdlib/strtod.c
+++ b/src/stdlib/strtod.c
@@ -71,6 +71,18 @@ static struct {
        {".2225073858507201630123055637955676152503612414573018013083228724049586647606759e-307", 0x1p-1022},
        // 2^-1022 + 2^-1075 + eps
        {".2225073858507201630123055637955676152503612414573018013083228724049586647606760e-307", 0x1.0000000000001p-1022},
+       // 2^1024 - 2^970 - 1
+       {"17976931348623158079372897140530341507993413271003782693617377898044"
+       "49682927647509466490179775872070963302864166928879109465555478519404"
+       "02630657488671505820681908902000708383676273854845817711531764475730"
+       "27006985557136695962284291481986083493647529271907416844436551070434"
+       "2711559699508093042880177904174497791", 0x1.fffffffffffffp1023},
+       // 2^1024 - 2^970
+       {"17976931348623158079372897140530341507993413271003782693617377898044"
+       "49682927647509466490179775872070963302864166928879109465555478519404"
+       "02630657488671505820681908902000708383676273854845817711531764475730"
+       "27006985557136695962284291481986083493647529271907416844436551070434"
+       "2711559699508093042880177904174497792", INFINITY},
 };
 static struct {
        char *s;
@@ -88,6 +100,10 @@ static struct {
        {".1175494420887210724209590083408724842314472120785184615334540294131831453944281e-37", 0x1p-126},
        // 2^-126 + 2^-150 + eps
        {".1175494420887210724209590083408724842314472120785184615334540294131831453944282e-37", 0x1.000002p-126},
+       // 2^128 - 2^103 - 1
+       {"340282356779733661637539395458142568447", 0x1.fffffep127},
+       // 2^128 - 2^103
+       {"340282356779733661637539395458142568448", INFINITY},
 };