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 30640-c2c58e18c5) Lines: 1865 1987 93.9 % Date: 2026-01-27 08:51:18 Functions: 105 105 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
addTp	7
mulqf	28
kro_quad	35
Zp_nosquare_m1	42
divfq	42
divqf	63
sqrq	70
addqf	77
conjvec	84
is_ext_qfr	98
warn_coercion	105
divRq	301
mulqq	1103
addRq	1240
mulRq	2276
divTp	3674
addsub_polmod	7203
ser_normalize	7658
quad_polmod_conj	18403
quad_polmod_norm	18403
div_scal_ser	19096
div_rfrac_scal	32139
div_polmod_same	36926
div_scal_rfrac	37767
sqr_ser_part	113207
mul_gen_rfrac	161432
inv_polmod	189597
fix_rfrac	207739
Q_to_Fp	226838
div_rfrac_pol	262344
mul_ser_scal	321223
div_intmod_same	341120
gconj	388791
add_ser_scal	414401
sqr_polmod	419385
div_ser	774252
sub_intmod_same	1027929
div_rfrac	1187237
divpT	1204917
div_ser_scal	1343391
gdivgunextu	1583803
Qdivis	1588262
divRc	2158068
mul_intmod_same	2628200
mul_polmod	2674945
mulcxmI	2985859
add_rfrac	3018271
gsubsg	3234147
mul_polmod_scal	3236219
add_intmod_same	3342958
ser_add	3592942
addQp	4762940
mulTp	4984991
mulcxpowIs	5563157
fill_ser	5715854
init_ser	5728306
quad_polmod_mul	5860179
div_T_scal	6506006
_serprec	7185086
mul_self_scal	7537863
mul_rfrac	7910299
mul_polmod_same	8529624
add_rfrac_scal	8811940
div_scal_pol	9257079
div_scal_T	9265322
rfrac_denom_mul_scal	9959106
mul_rfrac_scal	10454863
mulcIR	10565088
gdivgs	12622214
divpp	13212905
addsub_polmod_scal	13428906
addsub_frac_i	13930856
mulcxI	14169194
setfrac	14765140
mulpp	17503028
addsub_pp	19972586
divcR	22295314
mkpadic_mod	24593540
conj_i	30311385
ginv	34946957
mulrfrac	37685208
addsub_frac	40213231
add_scal	41603052
gred_rfrac2	44825557
Leading_is_neg	57792799
gred_rfrac_simple	57796888
gdivgu	60222037
utoi_sign	61608778
Qdivii	136208967
gmul2n	139549393
Qdiviu	143106203
mul_scal	149183120
transtype	154402745
divrunextu	212071554
gmulsg	226651268
mulcc	247394831
gaddsg	270693909
gmulug	282633046
addRc	294756906
mulRc	333508104
gdiv	427324903
gsqr	1163715594
gsub	2785150765
gadd	5959430843
gmul	8347720469

Generated by: LCOV version 1.16