Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30711-c92306d4b4) Lines: 1880 2002 93.9 % Date: 2026-02-25 09:24:21 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57790181
Q_to_Fp	226838
Qdivii	141924356
Qdivis	1592286
Qdiviu	148802058
Zp_nosquare_m1	42
_serprec	7185114
addQp	4762997
addRc	307874383
addRq	1302
addTp	7
add_intmod_same	3338896
add_rfrac	3017228
add_rfrac_scal	8812213
add_scal	42826865
add_ser_scal	414450
addqf	77
addsub_frac	40598721
addsub_frac_i	14120721
addsub_polmod	7203
addsub_polmod_scal	13456528
addsub_pp	19974393
conj_i	31492117
conjvec	84
divRc	2286158
divRq	301
divTp	3674
div_T_scal	7125959
div_intmod_same	341514
div_polmod_same	37016
div_rfrac	1187237
div_rfrac_pol	262365
div_rfrac_scal	32139
div_scal_T	9266463
div_scal_pol	9258220
div_scal_rfrac	37767
div_scal_ser	19096
div_ser	774266
div_ser_scal	1343391
divcR	23352664
divfq	42
divpT	1204910
divpp	13211854
divqf	63
divrunextu	213711231
fix_rfrac	206780
gadd	6179833527
gaddsg	270740547
gconj	390135
gdiv	439093415
gdivgs	13001690
gdivgu	60480576
gdivgunextu	1583803
ginv	36601173
gmul	8729484113
gmul2n	143715722
gmulsg	241006783
gmulug	283683119
gred_rfrac2	44823170
gred_rfrac_simple	57794270
gsqr	1210013167
gsub	2890522574
gsubsg	3235138
inv_polmod	189698
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24594386
mulRc	354578064
mulRq	2324
mulTp	4985899
mul_gen_rfrac	161432
mul_intmod_same	2788953
mul_polmod	2674945
mul_polmod_same	8529774
mul_polmod_scal	3238992
mul_rfrac	7910299
mul_rfrac_scal	10454093
mul_scal	154345757
mul_self_scal	7646401
mul_ser_scal	321174
mulcIR	11645652
mulcc	279009171
mulcxI	15630389
mulcxmI	2985879
mulcxpowIs	5563518
mulpp	17505424
mulqf	28
mulqq	1127
mulrfrac	37740897
pol2ser	5638655
quad_polmod_conj	18403
quad_polmod_mul	5860209
quad_polmod_norm	18403
rfrac_denom_mul_scal	9959029
ser_add	3592956
ser_normalize	7658
setfrac	14999500
sqr_polmod	419385
sqr_ser_part	113207
sqrq	70
sub_intmod_same	1021769
transtype	154397971
utoi_sign	64650828
warn_coercion	112

Generated by: LCOV version 1.16