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comparison lwlib/lw_expr.h @ 249:1f1a28b797e1
Add trap for divide by zero in expression library
Added a trap for division by zero in the expression library and adjusted
lwasm to use it and report division by zero errors instead of crashing with
a cryptic "arithmetic exception" or even more mysterious "floating point
exception".
author | William Astle <lost@l-w.ca> |
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date | Fri, 25 Jan 2013 21:48:01 -0700 |
parents | 6b9991fb39b6 |
children | 3b5a45c6ab92 |
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248:891bab942b5a | 249:1f1a28b797e1 |
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110 // run a function on all terms in an expression; if the function | 110 // run a function on all terms in an expression; if the function |
111 // returns non-zero for any term, return non-zero, else return | 111 // returns non-zero for any term, return non-zero, else return |
112 // zero | 112 // zero |
113 extern int lw_expr_testterms(lw_expr_t e, lw_expr_testfn_t *fn, void *priv); | 113 extern int lw_expr_testterms(lw_expr_t e, lw_expr_testfn_t *fn, void *priv); |
114 | 114 |
115 extern void lw_expr_setdivzero(void (*fn)(void *priv)); | |
116 | |
115 #endif /* def ___lw_expr_c_seen___ */ | 117 #endif /* def ___lw_expr_c_seen___ */ |
116 | 118 |
117 #endif /* ___lw_expr_h_seen___ */ | 119 #endif /* ___lw_expr_h_seen___ */ |