scc

Simple C99 Compiler
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commit b6d551944bd495bb30ba7345f5ab77ccca14c295
parent 6f28085c2d0113db59693fdf30fe1d1e855635f9
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Mon, 31 Mar 2014 19:37:40 +0200

Add plus() in lex.c

We have minus, so it is logical to have plus().

Diffstat:
lex.c | 20+++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/lex.c b/lex.c @@ -182,6 +182,7 @@ minus(void) register int c = getc(yyin); yybuf[1] = c; + yybuf[2] = '\0'; switch (c) { case '-': return DEC; case '>': return INDIR; @@ -194,6 +195,23 @@ minus(void) } static uint8_t +plus(void) +{ + register int c = getc(yyin); + + yybuf[1] = c; + yybuf[2] = '\0'; + switch (c) { + case '+': return INC; + case '=': return ADD_EQ; + default: + yybuf[1] = '\0'; + ungetc(c, yyin); + return '+'; + } +} + +static uint8_t relational(uint8_t op, uint8_t equal, uint8_t shift, uint8_t assig) { register int c = getc(yyin); @@ -220,7 +238,6 @@ operator(void) switch (c) { case '<': return relational('<', LE, SHL, SHL_EQ); case '>': return relational('>', GE, SHR, SHR_EQ); - case '+': return follow('+', INC, follow('=', ADD_EQ, '+')); case '=': return follow('=', EQ, '='); case '^': return follow('=', XOR_EQ, '^'); case '*': return follow('=', MUL_EQ, '*'); @@ -229,6 +246,7 @@ operator(void) case '&': return follow('=', AND_EQ, AND); case '|': return follow('=', OR_EQ, OR); case '-': return minus(); + case '+': return plus(); default: return c; } }